Happy Towel Day!

In addition to being “Geek Pride Day” today, it’s also “Towel Day,” which is a tribute to Douglas Adams that was started in 2001. If you haven’t read or are otherwise familiar with The Hitchhiker’s Guide to the Galaxy — I’m disappointed in you — but here’s why a towel is relevant to that story, as explained in Chapter 3:

A towel, it says, is about the most massively useful thing an interstellar hitchhiker can have. Partly it has great practical value. You can wrap it around you for warmth as you bound across the cold moons of Jaglan Beta; you can lie on it on the brilliant marble-sanded beaches of Santraginus V, inhaling the heady sea vapours; you can sleep under it beneath the stars which shine so redly on the desert world of Kakrafoon; use it to sail a miniraft down the slow heavy River Moth; wet it for use in hand-to-hand-combat; wrap it round your head to ward off noxious fumes or avoid the gaze of the Ravenous Bugblatter Beast of Traal (such a mind-bogglingly stupid animal, it assumes that if you can’t see it, it can’t see you — daft as a brush, but very very ravenous); you can wave your towel in emergencies as a distress signal, and of course dry yourself off with it if it still seems to be clean enough.

More importantly, a towel has immense psychological value. For some reason, if a strag (strag: non-hitch hiker) discovers that a hitchhiker has his towel with him, he will automatically assume that he is also in possession of a toothbrush, face flannel, soap, tin of biscuits, flask, compass, map, ball of string, gnat spray, wet weather gear, space suit etc., etc. Furthermore, the strag will then happily lend the hitch hiker any of these or a dozen other items that the hitch hiker might accidentally have “lost.” What the strag will think is that any man who can hitch the length and breadth of the galaxy, rough it, slum it, struggle against terrible odds, win through, and still knows where his towel is, is clearly a man to be reckoned with.

Hence a phrase that has passed into hitchhiking slang, as in “Hey, you sass that hoopy Ford Prefect? There’s a frood who really knows where his towel is.” (Sass: know, be aware of, meet, have sex with; hoopy: really together guy; frood: really amazingly together guy.)

The idea is that on May 25, fans should openly carry a towel with them, in fact they want you to make “sure that the towel is conspicuous — use it as a talking point to encourage those who have never read the Hitchhiker’s Guide to go pick up a copy. Wrap it around your head, use it as a weapon, soak it in nutrients — whatever you want!”

But since this is beer-focused place, and I don’t want to shortchange you, here are some beer towels that are educational as well as useful as any towel would be. So hopefully, you carried your towel with you today. If not, there’s always next year.

This beer towel is available from the Baltic Shop.

This one on beer and food pairing is likewise from the Baltic Shop.

And so is this one on beers of the world.

Patent No. 6739087B2: Garden Pest Trap With Beer

Today in 2004, US Patent 6739087 B2 was issued, an invention of Isaac Weiser and Margaret Weiser, assigned to Exhart Environmental Systems, Inc., for their “Garden Pest Trap.” Here’s the Abstract:

A pest trap for trapping snails, slugs, and the like comprising a base structure and a decorative cover. The base structure comprises a planar surface, a sloping surface surrounding at least part of the planar surface, two or more recesses formed in the planar surface for retaining a liquid for luring the pests, and a containment surface that is inclined and surrounds each recess. The cover rests over the base structure, preferably mounted on one or more side walls that partially enclose the planar surface and optionally have flanged ends for partially enclosing the recesses. Use and maintenance of the trap of the present invention is thereby greatly simplified and may be environmentally friendly utilizing common beer or other non-liquid luring means.


Patent No. 5906151A: Apparatus And Method For Brewing An Alcoholic Beverage

Today in 1999, US Patent 5906151 A was issued, an invention of Adam Firestone, Jeffers Richardson, Donald E. Othman, and Michel A. Blom, assigned to Firestone Walker, LLC, for their “Apparatus And Method For Brewing An Alcoholic Beverage and Beverage Brewed by Same.” Here’s the Abstract:

An apparatus for brewing an alcoholic beverage includes a plurality of wooden barrels including at least one first wooden barrel, at least one second wooden barrel, and at least one third wooden barrel; an enclosed trough; a plurality of first conduits providing flow communication between each of the plurality of wooden barrels and the enclosed trough; an enclosed catch pot in flow communication with the enclosed trough; a plurality of second conduits providing flow communication between the enclosed catch pot and each of the plurality of wooden barrels; and devices, such as valves, for controlling flow between each of the plurality of wooden barrels and the second conduit. The at least one first wooden barrel is a new barrel that has been filled with an alcoholic beverage up to 5 times, the at least one second wooden barrel is a middle aged barrel that has been filled with an alcoholic beverage from 6 to 12 times, and the at least one third wooden barrel is an old barrel that has been filled with an alcoholic beverage from 13 to 30 times.

This is essentially a patent for Firestone Walker’s modified Burton Union System that they pioneered when they first started, and then scaled-up when they bought the old SLO Brewery in Paso Robles and increased the size of their beer production. Jeffers, of course, is still there is the Barrelmeister, or Director of the Firestone Walker Barrelworks. That system is one of only two such brewing systems left in the world, the other being at Marston’s in Burton-on-Trent in England.

Here’s a few photos of the system at the Paso Robles brewery in 2012.



5,000-Year-Old Beer Recipe Found In China

There was exciting news yesterday about a find in China by a research team from Stanford University. According to one source, “Archaeologists have discovered what they believe to be the earliest direct evidence of beer brewing in China, a trove of beer-making equipment dating from between 3400 and 2900 BCE, discovered at the Mijiaya site in Shaanxi province. Along with this archaeological find, scientists conducted an analysis of residue on the ancient pottery, jars, and funnels found, revealing a surprising recipe for the beer.” Their findings will be published in the PNAS (Proceedings of the National Academy of Sciences of the United States of America).

Here’s the abstract:

The pottery vessels from the Mijiaya site reveal, to our knowledge, the first direct evidence of in situ beer making in China, based on the analyses of starch, phytolith, and chemical residues. Our data reveal a surprising beer recipe in which broomcorn millet (Panicum miliaceum), barley (Hordeum vulgare), Job’s tears (Coix lacryma-jobi), and tubers were fermented together. The results indicate that people in China established advanced beer-brewing technology by using specialized tools and creating favorable fermentation conditions around 5,000 y ago. Our findings imply that early beer making may have motivated the initial translocation of barley from the Western Eurasia into the Central Plain of China before the crop became a part of agricultural subsistence in the region 3,000 y later.



This research reveals a 5,000-y-old beer recipe in which broomcorn millet, barley, Job’s tears, and tubers were fermented together. To our knowledge, our data provide the earliest direct evidence of in situ beer production in China, showing that an advanced beer-brewing technique was established around 5,000 y ago. For the first time, to our knowledge, we are able to identify the presence of barley in archaeological materials from China by applying a recently developed method based on phytolith morphometrics, predating macrobotanical remains of barley by 1,000 y. Our method successfully distinguishes the phytoliths of barley from those of its relative species in China.

I’m not sure how that squares with Chateau Jiahu, the beer made by Dogfish Head based on a 9,000-year-old find in China, from Northern China. They also found preserved pottery jars “in the Neolithic village of Jiahu, in Henan province.” The difference, as far as I can tell is the ingredients themselves, although in both they do use barley. This beer recipe calls for broomcorn millet (Panicum miliaceum), barley (Hordeum vulgare), Job’s tears (Coix lacryma-jobi), and tubers to be fermented, whereas the earlier one from Jiahu used “pre-gelatinized rice flakes, Wildflower honey, Muscat grapes, barley malt, hawthorn fruit, and Chrysanthemum flowers.” So their claim that this is older seems suspect unless there’s some qualifier I’m missing. As is typical, academic papers are only available online if you’re already an academic or are willing to pay to look at it for a short period of time, so I’ve not been able to look at their full claims or at the recipe itself, except what’s been written about it by more mainstream news outlets.

According to Gizmodo’s coverage:

Step aside with your claims to long legacies, craft breweries! This reconstructed beer recipe is over 5,000 years old. It’s the earliest beer recipe—and the earliest known use of barley—in China.

Archaeologists at Stanford University, while digging along China’s Wei River, made an intriguing discovery: A marvelously complete set of brewing equipment. And at the bottom of that equipment was something even more wonderful: Residue from the drink it once brewed.

After scrapping that gunk from the pots, researchers analyzed it and confirmed that it was, indeed, leftover froth from a 5,000-year-old beer. They were also able to pin down the recipe of that beer to an unlikely, but delicious-sounding, combination of broomcorn millet, barley, Job’s tears, and tubers.

So they claim, or rather Stanford claims, this is “the earliest known use of barley in China.” I didn’t think that the Chateau Jiahu added the barley to the original recipe, which was developed with the Patrick McGovern from the University of Pennsylvania, and I have a call into Dogfish Head to find out. But failing that, there’s a 4,000-year difference in the two claims that it seems hard for me to believe the Sanford team wouldn’t have uncovered.

The report from CBS News calls the barley a “secret ingredient,” which seems really odd, but seems to reflect the surprise of the researchers on this project. But McGovern’s find in the Jiahu area of China is more than ten years old, and got considerable media attention when the modern version of the beer was first released in 2007, so again I’m not sure a) how they could have missed it or b) what makes this find different, and if it is why none of the news reports are addressing that difference. Some news outlets, such as IFL Science, do mention that beer is older than 5,000 years, which is fairly well-known. Whether it was known in China at the very beginning, as it was in the fertile crescent seems to be gaining ground as a theory.

Although most of the paper is unavailable, there is supplemental information that is available, and that does give some information about the brewing process:



Patent No. DE2751778A1: Beer Piping Cleaning System

Today in 1979, US Patent DE 2751778 A1 was issued, an invention of Heinz Stricker, for his “Beer Piping Cleaning System — with suction nozzle for disinfectant inserted in tap water circuit.” Here’s the Abstract:

A system for the cleaning out of piping between bar barrels and the taps in a bar consists of a hose which is coupled between a water tap and a beer tap and includes a suction nozzle. A beaker with a disinfectant is attached to the nozzle so that the flow of water entrains the disinfectant. The piping in the cellar is disconnected from the barrels and coupled together so that the fluid can rise to another beer tap and out into a sink. After a certain retention time the whole is flushed out with clean water. This provides a chemical cleaning in addition to the conventional sponge cleaning.


Patent No. 1959501A: Beer Dispensing Device

Today in 1934, US Patent 1959501 A was issued, an invention of Elton F. Ross, for his “Beer Dispensing Device.” There’s no Abstract, though it’s described this way in the application:

This invention relates to a device for dispensing beer and other carbonated liquids discharged under pressure from a keg or other source of supply, and particularly to a dispensing device designed to supply measured quantities of the liquid and to control the discharge so as to prevent waste of the liquid and other objections due to wildness of the liquid.


Patent No. 821208A: Beer Glass Tray

Today in 1906, US Patent 821208 A was issued, an invention of Friedrich Voss, for his “Beer Glass Tray.” There’s no Abstract, though it’s described this way in the application:

This invention relates to a beer-glass tray which absorbs the drippings and conveys the same to a receiving-trough, so that cleanliness is insured.


Patent No. WO1987002975A1: A Beer Tapping Installation

Today in 1987, US Patent WO 1987002975 A1 was issued, an invention of Jacobus Dijkstra and Gijsbert Slootweg, assigned to Heineken Technisch Beheer B.V., for their “A Beer Tapping Installation.” Here’s the Abstract:

A beer tapping installation comprising a refrigerator having a cask cooling and installation space (2) including a revolving platform (8) on which casks (12, 13, 14) can be placed and with a space for accommodating a CO2 cylinder (15), as well as a tap (21), a beer line (20) from the cask installation space to the tap, a hollow support (17) for enveloping the beer line from the refrigerator to the tap, a cask coupling (22) on the beer line and a CO2 supply line from the CO2 container to the cask coupling. The hollow support is in open communication with the cask cooling and installation space and the beer line, together with the cask coupling and the tap, is movable longitudinally of the hollow support.


Historic Beer Birthday: Eduard Buchner

Today is the birthday of Eduard Buchner (May 20, 1860-August 13, 1917). Buchner was a German chemist and zymologist, and was awarded with Nobel Prize in Chemistry in 1907 for his work on fermentation.


This is a short biography from The Famous People:

Born into an educationally distinguished family, Buchner lost his father when he was barely eleven years old. His elder brother, Hans Buchner, helped him to get good education. However, financial crisis forced Eduard to give up his studies for a temporary phase and he spent this period working in preserving and canning factory. Later, he resumed his education under well-known scientists and very soon received his doctorate degree. He then began working on chemical fermentation. However, his experience at the canning factory did not really go waste. Many years later while working with his brother at the Hygiene Institute at Munich he remembered how juices were preserved by adding sugar to it and so to preserve the protein extract from the yeast cells, he added a concentrated doze of sucrose to it. What followed is history. Sugar in the presence of enzymes in the yeast broke into carbon dioxide and alcohol. Later he identified the enzyme as zymase. This chance discovery not only brought him Nobel Prize in Chemistry, but also brought about a revolution in the field of biochemistry.


Eduard Buchner is best remembered for his discovery of zymase, an enzyme mixture that promotes cell free fermentation. However, it was a chance discovery. He was then working in his brother’s laboratory in Munich trying to produce yeast cell free extracts, which the latter wanted to use in an application for immunology.

To preserve the protein in the yeast cells, Eduard Buchner added concentrated sucrose to it. Bubbles began to form soon enough. He realized that presence of enzymes in the yeast has broken down sugar into alcohol and carbon dioxide. Later, he identified this enzyme as zymase and showed that it can be extracted from yeast cells. This single discovery laid the foundation of modern biochemistry.


One of the most important aspects of his discovery proving that extracts from yeast cells could elicit fermentation is that it “contradicted a claim by Louis Pasteur that fermentation was an ‘expression of life’ and could occur only in living cells. Pasteur’s claim had put a decades-long brake on progress in fermentation research, according to an introductory speech at Buchner’s Nobel presentation. With Buchner’s results, “hitherto inaccessible territories have now been brought into the field of chemical research, and vast new prospects have been opened up to chemical science.”

In his studies, Buchner gathered liquid from crushed yeast cells. Then he demonstrated that components of the liquid, which he referred to as “zymases,” could independently produce alcohol in the presence of sugar. “Careful investigations have shown that the formation of carbon dioxide is accompanied by that of alcohol, and indeed in just the same proportions as in fermentation with live yeast,” Buchner noted in his Nobel speech.


This is a fuller biography from the Nobel Prize organization:

Eduard Buchner was born in Munich on May 20, 1860, the son of Dr. Ernst Buchner, Professor Extraordinary of Forensic Medicine and physician at the University, and Friederike née Martin.

He was originally destined for a commercial career but, after the early death of his father in 1872, his older brother Hans, ten years his senior, made it possible for him to take a more general education. He matriculated at the Grammar School in his birth-place and after a short period of study at the Munich Polytechnic in the chemical laboratory of E. Erlenmeyer senior, he started work in a preserve and canning factory, with which he later moved to Mombach on Mainz.

The problems of chemistry had greatly attracted him at the Polytechnic and in 1884 he turned afresh to new studies in pure science, mainly in chemistry with Adolf von Baeyer and in botany with Professor C. von Naegeli at the Botanic Institute, Munich.

It was at the latter, where he studied under the special supervision of his brother Hans (who later became well-known as a bacteriologist), that his first publication, Der Einfluss des Sauerstoffs auf Gärungen (The influence of oxygen on fermentations) saw the light in 1885. In the course of his research in organic chemistry he received special assistance and stimulation from T. Curtius and H. von Pechmann, who were assistants in the laboratory in those days.

The Lamont Scholarship awarded by the Philosophical Faculty for three years made it possible for him to continue his studies.

After one term in Erlangen in the laboratory of Otto Fischer, where meanwhile Curtius had been appointed director of the analytical department, he took his doctor’s degree in the University of Munich in 1888. The following year saw his appointment as Assistant Lecturer in the organic laboratory of A. von Baeyer, and in 1891 Lecturer at the University.

By means of a special monetary grant from von Baeyer, it was possible for Buchner to establish a small laboratory for the chemistry of fermentation and to give lectures and perform experiments on chemical fermentations. In 1893 the first experiments were made on the rupture of yeast cells; but because the Board of the Laboratory was of the opinion that “nothing will be achieved by this” – the grinding of the yeast cells had already been described during the past 40 years, which latter statement was confirmed by accurate study of the literature – the studies on the contents of yeast cells were set aside for three years.

In the autumn of 1893 Buchner took over the supervision of the analytical department in T. Curtius’ laboratory in the University of Kiel and established himself there, being granted the title of Professor in 1895.

In 1896 he was called as Professor Extraordinary for Analytical and Pharmaceutical Chemistry in the chemical laboratory of H. von Pechmann at the University of Tübingen.

During the autumn vacation in the same year his researches into the contents of the yeast cell were successfully recommenced in the Hygienic Institute in Munich, where his brother was on the Board of Directors. He was now able to work on a larger scale as the necessary facilities and funds were available.

On January 9, 1897, it was possible to send his first paper, Über alkoholische Gärung ohne Hefezellen (On alcoholic fermentation without yeast cells), to the editors of the Berichte der Deutschen Chemischen Gesellschaft.

In October, 1898, he was appointed to the Chair of General Chemistry in the Agricultural College in Berlin and he also held lectureships on agricultural chemistry and agricultural chemical experiments as well as on the fermentation questions of the sugar industry. In order to obtain adequate assistance for scientific research, and to be able to fully train his assistants himself, he became habilitated at the University of Berlin in 1900.

In 1909 he was transferred to the University of Breslau and from there, in 1911, to Würzburg. The results of Buchner’s discoveries on the alcoholic fermentation of sugar were set forth in the book Die Zymasegärung (Zymosis), 1903, in collaboration with his brother Professor Hans Buchner and Martin Hahn. He was awarded the Nobel Prize in 1907 for his biochemical investigations and his discovery of non-cellular fermentation.

Buchner married Lotte Stahl in 1900. When serving as a major in a field hospital at Folkschani in Roumania, he was wounded on August 3, 1917. Of these wounds received in action at the front, he died on the 13th of the same month.


Patent No. 4590085A: Flavor Enhancement And Potentiation With Beer Concentrate

Today in 1986, US Patent 4590085 A was issued, an invention of Daniel R. Sidoti, John H. Dokos, Edward Katz, and Charles M. Moscowitz, assigned to Anheuser-Busch Incorporated, for their “Flavor Enhancement And Potentiation With Beer Concentrate.” Here’s the Abstract:

A new method for intensifying the inherent flavors of foods and for imparting other desirable organoleptic properties is disclosed. The method consists of adding to foodstuffs a flavor enhancing amount of a heat denatured concentrate of beer. There is also provided a process for producing the above described concentrate.


While the abstract doesn’t tell us too much, the background from the application is very interesting, as it talks quite a bit about beer in cooking, which appears to be the primary goal of the patent’s use, although the patent has lapsed, so I don’t know if it was ever used in a commercial product. I know there have been, and even currently are, powdered beer products on the market, this one seems aimed at adding beer flavoring to cooking, rather than being able to make instant beer by adding water.


Foodstuffs of all varieties whether precooked, served hot or cold, or whether prepared without cooking have flavors, aroma, and other organoleptic properties that influence the sensory perceptions of human taste. The manufacturers of such foods as sauces, spreads, dips, soups, dressings, stuffings, garnishes, meats, fish, vegetables, salads, breads, etc. whether dry, frozen, refrigerated or canned, desire to produce products organoleptic properties closely profiling the natural flavors, aromas and textures that appeal broadly to the sensory perceptions of the consuming public. A food whose natural flavors are unduly masked may be too bland, or if overly modified with added flavor components, it may be perceived as too spicy. The availability of spices, condiments, etc., permits the individual consumer to adjust the flavor of food purchased from the shelf to suit his or her particular taste preference.

Nevertheless, food manufactures because of the nature of precooking processes, the addition of preservatives, the packaging and keeping techniques of retorting, pasturization, etc. will often times find that the desired natural flavor of the foodstuff has been suppressed below the threshold taste perceptions of the average consumer. Accordingly, techniques for addressing this deficiency have become customary to the industry.

One such technique involves the use of chemical compounds which intensify the flavors inherently present in food without adding any flavor from the chemical itself. These compounds are known as Flavor Enhancers and include, for example, linalool, 2-nonenal which is used to enhance the flavor of coffee, and certain sulfur containing amino acids which are used to enhance meaty flavors. Other chemicals serve as flavor enhancers through reacting with endogenous flavor components of food itself to synergistically promote the combined flavor effect of those components.

Another technique which is commercially employed to address the problem of suppressed natural flavors is that of using chemical compounds which when added to foods in very low concentrations to catalytically create desirable organoleptic properties of the foodstuff otherwise undetectable. These compounds are known as Flavor Potentiators, and like Flavor Enhancers, their taste is not itself detectable to the sensory perceptions of the ordinary consuming public.

There are drawbacks, however, to the previously known Flavor Enhancers and Potentiators. One foremost disadvantage is that these compounds are selective in their functional contribution to flavor development. The same compound which enhances coffee flavor may have a deleterious effect, if any effect at all, on, for example, cheese flavor. Accordingly, some food products such as soups, dressings and some pastries which have a combined variety of natural flavors are extremely difficult to potentiate or enhance from previously known chemicals.

Another serious drawback to previous flavor enhancement and potentiation techniques is that they require the addition of chemical compounds which have no nutritional value themselves nor are they derived from natural food or beverage constituents.

It has now been found and this finding forms the basis of this invention, that Flavor Enhancement and/or Potentiation can be achieved by the addition of denatured beer concentrate to foodstuffs of all types and varieties, whether cooked or prepared fresh, without the need to employ non-nutritional, chemical compounds.

It should be appreciated that cooking with beer is not new. The book Cooking With Beer by Carole Fahy, first published in 1972 by Elm Tree Books, indicates that the brewing of beer is known to have been practiced in Mesopotamia and Egypt at least 5,000 years ago. The Egyptians passed on their knowledge of brewing to the Greeks who in turn handed it down to the Romans who refined the Anglo-Saxon form which was already in place at the time of the Roman conquest. English ale became the basis for many religious and social festivals and is said to have accompanied bread as the sole breakfast menu of Queen Elizabeth I.

Ales and beers are all manufactured beginning with mashing barley malt and possibly grain adjuncts such as barley, corn and rice. This is filtered, brought to boil, pitched with hops and result in a wort which consists of water, dextrine and fermentable sugars. The wort is then fermented with yeast.

English ales have been traditionally distinguished from American brews or lagers primarily on the basis of the type of yeast employed to ferment fermentable sugars of the precursor wort into alcohol. Secondarily, there is a distinction between the ratio of malt and grain adjuncts in the mash in that ales customarily have far less, if any, grain adjuncts. Also there are distinctions in the level of hop addition. These factors contribute significantly to the variations in taste of American brews or lagers and ales.

Beers have gained some limited acceptance in cooking as a consequence of their richness, delightful taste, their ability to improve the texture and lightness of cakes, pies and batters; their tenderizing effect on tough meats; their contribution to preserving foods; their ability to make breads rise; their adding piquancy to dull vegetables and attractively glazing roasted meats and a few other culinary virtues. However, each of these benefits is owed to the full compliment of the beer flavor and texture attributes present naturally and, in the case of assisting cakes to rise, its fermentable state with its residual yeast in active form and its carbonation being readily apparent.

It has been determined however, that the use of beer in cooking does have its limitations. For example, if you are making a soup which requires dried vegetables according to Carole Fahy in Cooking With Beer, you must make certain that you soak them thoroughly, overnight, before use because the hard pellets will otherwise sink to the bottom of a rich vegetable beer soup apparently due to slow diffusion of beer molecules through the surface membrane and interior of the dried vegetables. Additionally, when sieving foods as for example, soups, the richer the beer is, the more difficult to push entirely through the strainer without losing some of the desired flavor. Still further, it is found necessary to cook foods longer with beer to fully develop the flavor. Finally, and perhaps most importantly, cooking with beer imparts of a clear beer flavor to the foodstuffs tending to mask the inherent natural flavors of the other foodstuffs. Accordingly, beers, although employed previously in cooking, have not been used nor thought to have any Flavor Enhancing or Potentiation functionality. Likewise, previous beer extracts or concentrates have had no utility in flavor enhancement but rather have been prepared in undenatured form in order to be reconstituted into either alcoholic or nonalcoholic beverages.

British Patent No. 2127 describes the prepration of a nonalcoholic beer extract or concentrate. Although the concentration can be effected in any efficient vacuum evaporation apparatus, the first end to be attained is the separation of the alcohol produced by fermentation at as low a temperature as possible. After separation, as disclosed in this patent, the temperature may be raised, but the subsequent evaporation must be carefully conducted otherwise aromatic compounds present may be expelled or destroyed and the color of the product materially increased. The product is said to be pleasant to the taste and to possess all the nutritive and feeding properties of original beer before removal of the alcohol and subsequent concentration. The product is employed as an ale concentrate designed to be reconstituted into a non-alcohlic beverage by the addition of water.

British Patent No. 1,228,917 discloses a dry extract of a fermented beverage. However, it is compounded with dry yeast in live active form, together with dry fermentable carbohydrates or dry unfermented wort containing fermentable carbohydrates in order to permit fermentation when diluted. The boiling evaporation utilized to produce the extract is under a vacuum high enough to take place at the predetermined low temperature of 100° F. The original fermented beverages and their respective solids or residues and the yeast are protected during evaporation by the low temperatures. The evaporation at yeast-preserving temperatures with minimum of exposure to the heat also preserves the solubility of the enzymes of yeast and, therefore, the yeast remains in active condition so it will act vigorously when the extract is diluted with water for the preparation of a beverage.

In British Patent No. 1,290,192, a beer extract is produced from evaporating a partly fermented beverage at temperatures below 80° F. or any other suitably low temperature that will preserve the constituents of the reduced wort in a soluble state. The extract contains fermentable substances with the same characteristics of the beverage from which the extract was made. It possesses the characteristic flavor and taste of the original beverage that can be produced and imparted by yeast fermentation and is naturally alcoholic; and when suitable diluted with water, provides a beverage having the flavor and taste of the original beverage. The yeast, however, is used in large quantity for example, twice as much in respect to the amount of fermentable carbohydrates as is usually employed to pitch ordinary fermented beverages.


It is an object of the present invention to provide a new and useful technique for flavor enhancement and potentiation intensifying the inherent natural flavors of food and creating desirable organoleptic properties to a broad range of foodstuffs with a derivative of a nutritious foodstuff natural concentrate despite having substantially denatured the components of flavor and color, consistency, solubility and fermentability from the concentrate.

It is a further object of this invention to provide a new and useful concentrate of beer and its method of manufacture.

These objects and others are fulfilled by heat treating a fermented malt beverage or beer at sufficiently high temperatures to substantially denature the product and adding it at very low levels to foodstuffs. The denatured beer concentrate is added in amounts below which the concentrate is detectable in taste or mouth feel, but sufficient to achieve flavor enhancement and potentiation.