What is Beer: Definition and 95 Discussions

Beer is one of the oldest and most widely consumed alcoholic drinks in the world, and the third most popular drink overall after water and tea. Beer is brewed from cereal grains—most commonly from malted barley, though wheat, maize (corn), rice, and oats are also used. During the brewing process, fermentation of the starch sugars in the wort produces ethanol and carbonation in the resulting beer. Most modern beer is brewed with hops, which add bitterness and other flavours and act as a natural preservative and stabilizing agent. Other flavouring agents such as gruit, herbs, or fruits may be included or used instead of hops. In commercial brewing, the natural carbonation effect is often removed during processing and replaced with forced carbonation.Some of humanity's earliest known writings refer to the production and distribution of beer: the Code of Hammurabi included laws regulating beer and beer parlours, and "The Hymn to Ninkasi", a prayer to the Mesopotamian goddess of beer, served as both a prayer and as a method of remembering the recipe for beer in a culture with few literate people.Beer is distributed in bottles and cans and is also commonly available on draught, particularly in pubs and bars. The brewing industry is a global business, consisting of several dominant multinational companies and many thousands of smaller producers ranging from brewpubs to regional breweries. The strength of modern beer is usually around 4% to 6% alcohol by volume (ABV), although it may vary between 0.5% and 20%, with some breweries creating examples of 40% ABV and above.Beer forms part of the culture of many nations and is associated with social traditions such as beer festivals, as well as a rich pub culture involving activities like pub crawling, pub quizzes and pub games.
When beer is distilled, the resulting liquor is a form of whisky.

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  1. M

    Beer related physics, for a undergraduate project

    hey all, I am not using the template, bc this isn't a standard problem. I am doing a few beer related physics tricks for my phy 252 research project at Arizona State, and I need help with one in general. Why does, when you hit two beer bottles together (one on top of the other)...
  2. G

    Beer Mug 2D Problem: Vel & Dir Calculation

    Homework Statement In a local bar, a customer slides an empty beer mug down the counter for a refill. The bartender is momentarily distracted and does not see the mug, which slides off the counter and strikes the floor 0.40 m from the base of the counter. The height of the counter is 0.730 m...
  3. M

    Freeze Beer in 2 Seconds - Max's Question

    Hello Frndz, Yesterday I watched i video on You tube, The video shows a beer freezing in 2 sec. I was wondering if the video was fake or it is possible to do so. If it is true, can anyone tell me whatz the logic behind this..? Thanx Max
  4. J

    Design of a turbine flowmeter to measure beer

    I've been given a project to improve the design of a turbine used to measure the flow of beer! I've trawled the web and libraries to find previous work in the hope of finding some handy pointers, rules of thumb and simple equations to guide me. However, I've had little joy. Basic parameters...
  5. C

    Which is unhealty? beer or softdrinks?

    i want to know if there are health benefits in drinking beer, and which is better, in terms of nutrients, health or maybe even in the religious part. what i mean in the religious part is that most good Christians i know don't sell beer because they say its against the bible but they would...
  6. S

    Beer Lambert Law: Calculate Molar Extinction Coefficient at 405nm

    Homework Statement The p-nitrophenolate ion absorbs lights at 405nm. A solution that is 74um in the p-nitrophenolate ion was diluted 1 in 2 with water.Absorbance of resulting solution at 405nm was .650. Calculate molar extinction coefficient of the p-nitrophenolate ion at 405nm. Your meant to...
  7. U

    Beer Lambert Law: Solving Qs for Pharmacy Students

    Hi, I'm an pharmacy student and I've forgotten how to answer questions on the beer lambert law. I would be grateful if anyone could show me how to answer these questions below. (a)In pharmaceutics it is usual to use the specific absorption coefficient A (1%, 1 cm). What is this term...
  8. J

    Obama - Gates - Crowley Beer poll.

    What kind of beer should they drink?
  9. Cyrus

    Beer vs. Soda: Which is Worse for Your Health?

    Serious question. I drink a beer once a day, usually in the afternoon. Sometimes two. I know that most people drink at least one soda a day. Which is worse for you? I think drinking a soda a day is has got to be much worse for you considering it has lots of acid, and sugar. Also, beer doesn't...
  10. Cyrus

    Three Star General + Beer + Helicopters

    I went to an American Helicopter Society (AHS) DC, chapter meeting tonight. It's full of people who are big in the government and industry. This months guest speaker was with Dell Dailey of the US department of state (He's a former chopper pilot, blackhawks, cobra, and hueys). He said whatever...
  11. F

    Pumping air into partially full beer bottles to preserve carbonation

    I was thinking of buying a cheap device to pump air into large bottles of beer that I didn't finish drinking to keep up the carbonation for another day or so, but the following Amazon reviews of a similar more expensive device got me wondering if it's a waste of time and money...
  12. Z

    Moment of inertia of a beer can

    Homework Statement Hello there! Right now I am preparing for my exam, but I am having some problems with an experiment which we had earlier this year on class. It was an experiment, in which we rolled canned beers down an incline, one with beer in it, and one with no beer in it. The...
  13. R

    Why does beer freeze when opened in hot temperatures?

    freezing Beer in the Heat! Hey everybody!... the other day i had a few Beers in the refrigirator...i went to get one and i grab one...it was liquid...it wasnt frozen as the others...then when i open it up...it started to frozen from top to botton continuosly!...it took like 15 seconds to do...
  14. H

    Projectile motion beer slide problem

    Homework Statement In a local bar, a customer slides an empty beer mug down the counter for a refill. The bartender is momentarily distracted and does not see the mug, which slides off the counter and strikes the floor 0.60 m from the base of the counter. The height of the counter is 0.900 m...
  15. Y

    Beer + Liquid Nitrogen: Why Does It Foam & Popcorn?

    1. If you take beer out of the fridge, dip it for 30 seconds in liquid nitrogen, then open it, it will foam up. Skipping the LNO2 cooling stage, it doesn't foam up, why? 2. Pouring a bottle of beer into Dewar of liquid nitrogen, then letting LNO2 evaporate leaves pieces that are shaped like...
  16. A

    Beer mug across counter direction of mugs velocity

    Homework Statement In a local bar, a customer slides an empty beer mug down the counter for a refill. The bartender is momentarily distracted and does not see the mug, which slides off the counter and strikes the floor at distance d from the base of the counter. The height of the counter is h...
  17. wolram

    What are the potential effects of body image stereotypes on nursing students?

    Nearly all the blokes have beer bellies and nearly all the girls are bean poles, bean poles wearing barbie doll clothes, and beer bellies wearing jeans and tee shirts, that is the impression i had when i went to the city.
  18. TheStatutoryApe

    Who Was Charlie Mops in Beer History?

    Lord Bless Charlie Mops. So what are your favourite types and brands of beer? I prefer darker beers myself, Guinness being my favourite. New Castle, Negra Modelo, Sapporo, and Flying Dog(Denver microbrew) are the only other beers I have ever tried and enjoyed. Otherwise I have also...
  19. marlon

    Music Great Beer & Music: Enjoy a Recital!

    Great beer ! I just looovvvee drinking beer : and then enjoy a nice recital : http://uk.youtube.com/watch?v=_RgL2MKfWTo marlon
  20. S

    Understanding Enthalpy: How Salting Crushed Ice Cools Beer Faster

    Can someone help me understand this: By salting the crushed ice, the beer got cold faster. Why?! I have recently studied some Enthalpy, so if anyone could give me an explanation to this using anything related to Enthalpy I'd be very grateful!
  21. B

    What are those bubbles in my beer?

    I heard alcohol evaporates, also the carbon dioxcide pop does the samething, am I loseing alcohol percentage when I let my beer stand?
  22. ZapperZ

    Postdoctoral Fellow in Beer Studies

    This sounds like a college student wet dream. A physicist has been appointed as a http://media.www.lawrentian.com/media/storage/paper409/news/2007/04/01/Erotica/Marler.To.Become.First.Beer.Studies.Fellow-2828558.shtml" . The news article is actually pretty hilarious! Now that might explain...
  23. S

    Weight of 12 fl oz Beer Bottle | Physics Project Help

    Random question: How much does a regular beer bottle (12 fl oz) weigh? I'm doing a physics project involving the weight of beer bottles, and I don't have a scale, balance, etc. :rolleyes:
  24. H

    Chill Beer to 22F Without Freezing: Physics Explained

    I'm not a physics guy. I'm not even sure that that this is the right forum, but "solid state" sounded appropriate. Here is a link to a beer refrigerator that will chill beer to 22 F without freezing. http://biz.yahoo.com/prnews/061107/cgtu049.html?.v=73 My question is how this is possible...
  25. A

    How Do Bubbles Form and Expand in Beer?

    why there have bubble in beer, what the pathway do the bubbles go in pv diagram my idea : assume temperature is constant pressure in the bottom is higher than the suface so the bubbles size increase then where the energy come from?
  26. J

    What Types of Beer Do You Prefer?

    who here likes beer, what what is your favorite beer? Who hates beer? 'cause I was just thinkin I could go for a beer right now... I don't know what kind, but just simply a beer would be nice right now. If I had to say which kind I like I'd say I'm kinda partial to lagers, pale ales, and...
  27. B

    Physics and Beer, the perfect union

    I brew beer as a hobby and in order to avoid the cold i want to take my boiling inside. Because propane inside my apartment is dangerous I was looking to heat my boil with a modified electric heating element from a hot water heater. I need to figure out an equation that will tell me how...
  28. J

    The Great Beer Debate: Is Drinking Beer Good for Weight Loss?

    When you drink a beer, it enters you cold, and leaves you warm. If you were to find the amount of energy required to raise the temperature of the beer, assuming that the energy is provided by yourself, you would find it to be greater than the caloric content of beer. If this is true (and it is)...
  29. S

    Beer lambert equation and concentration

    Please help, A 15.23mg sample of cocaine was cemically digested to convert its nitorgen to ammonia and then diluted to 100.00cm3. A 10.00cm3 of this solution was placed in a 50.00cm3 volumetric flask and treated with 5.0cm3 of phenol solution and 2.0cm3 of sodium hypochlorite solution. The...
  30. Gokul43201

    Is Kids' Beer the Next Big Thing for Children?

    http://www.telegraph.co.uk/news/main.jhtml?xml=/news/2005/08/21/wbeer21.xml What'll they think of next ?!
  31. Astronuc

    Belgian Monks Run Out of the World's Best Beer

    BRUSSELS (Reuters, Aug. 12) - Monks at a Belgian abbey have been forced to stop selling their famous beer after it was voted the best in the world and was promptly sold out. The abbey of Saint Sixtus of Westvleteren in western Belgium is home to some 30 Cistercian and Trappist monks who lead...
  32. wolram

    Exploring the World of British Beer

    This is the time to leave your, "better half", "the trouble and striffe", and talk man stuff, like beer There is just so many different brews like, Woodford Norfolk Nips Wessex Old Shag Wessex Gee Spot Wessexs Jock Srap Burton Bridge Tickle Brain It will take a while to sample them all...
  33. Z

    How Many Calories Does Eating Ice Cream Burn?

    I just found this on the web and thought i`d share... As we all know, it takes 1 calorie to heat 1 gram of water 1 degree centigrade. Translated into meaningful terms, this means that if you eat a very cold dessert (generally consisting of water in large part), the natural processes which...
  34. X

    Understanding the Use of Wax Seals on Beer Bottles: A Brewer's Perspective

    On another message board I belong to, someone asked why some beer manufacturers hand dip the top of the capped bottle in wax. This is part of one reply given by a home brewer: Can this be correct? Since the pressure inside the bottle is higher than the pressure outside of the bottle, can...
  35. arivero

    A budweiser beer (the phase operator)

    R. F. Streater lists Phase, the operator conjugate to the number operator as his http://www.mth.kcl.ac.uk/~streater/lostcauses.html#VIII . I have found recently a curious historical report of this cause: hep-th/9304036, and its prottagonists are intriguing as well.
  36. P

    Did You Know Hops Belong to the Same Family as Cannabis? Does Beer Contain THC?

    Something in the Beer? Last night I went to a local 'Beer Fest' where vendors were promoting their products. Of course I helped myself to a healthy portion of the libations that were offered. While trying one of the brews I was having a conversation with a friend of mine who is a distributor...
  37. F

    Evaporated Beer: Is It Possible?

    you know how you can get evaporated milk at a grocery store, i wonder if it would be possible to make evaporated beer? you know, just add water. it would be great for taking on hiking trips. :approve:
  38. N

    Why do ppl suffered from famine always has a beer belly?

    why do ppl suffered from famine always has a beer belly?
  39. brewnog

    The Cold Beer Dilemma: The Ultimate Conundrum

    Right! I don't actually have an answer here, so don't get your hopes up, but your thoughts please! I buy two bottles of cold beer at the bar, they're both taken out of the fridge and opened at the same time. I'm holding one in each hand. I can only down a few before my stomach gets full...
  40. Ivan Seeking

    Crop Circle Beer: Malt & Mystery Tale

    http://www.newsday.com/business/local/newyork/ny-bzbeer273943679aug27,0,2337561.story?coll=ny-nybusiness-headlines
  41. Q

    Puzzle: Who Pays More in the Beer Hall?

    This story surprisingly puzzles some people: Eleven friends go into a beer hall. Six of them sit at table A and five of them sit at table B. Each of the eleven orders one round for his own table. Now table A has more payers, but a person at table A ends up paying more than a person at...
  42. Dissident Dan

    Can beer bottles pop car tires?

    I'm not quite sure if this is the most appropriate forum. Some jerks were throwing beer bottles in the parking lot the other day. I was quite angry at them. Is it possible for broken beer bottles to cut car tires so as to make them lose air?
  43. A

    Antibubbles in Beer from Belgium

    Physicists from Belgium have published a theory that explains the formation and movement of antibubbles. http://physics.about.com/cs/bubles/g/antibubble.htm : where bubbles are thin surface of fluid in air surrounding a pocket of air, an antibubble is a thin surface of air in fluid...
  44. recon

    Durian: The King of Fruits - Is it Fatal with Beer?

    In my part of the world, durian is regarded as the king of fruits. I myself don't like it personally, but I was just wondering if anyone here knows why (EDIT: and how) durian eaten with a drink of beer may be fatal. Apparently, it causes some kind of an explosion in your bowels. I'm not sure if...
  45. quantumdude

    Why Did the Beer Freeze at My Favorite Bar?

    OK, so I'm at my favorite watering hole last weekend, and someone orders a Corona with lime. The bartender puts the lime in, and the beer starts to freeze. Everyone in the place looks at me and asks me why, and I don't know. "Don't you know anything useful?" they demand, but I can only...
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