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Abbey Beverage: They use a bottling date it is on the lower left side of the label is the month and year of bottling. Both Monks' Ale & Monks' Wit have a 6 month shelf life, Dubbel & Tripel have a 9 month shelf life.

Abita: Has a best by date. It's on the neck of the bottle, near the top. Format is standard MM/DD/YY.

AC Golden: Uses a best consumed by date. The brewer states that they try to get it video-jetted on the neck label of each bottle, but some are missed on packaging day. Another way to track the age of Herman Joseph's Private Reserve is with the brew number.

Adelbert's: Uses a bottling date and batch number on each label. 

Alameda: Uses a bottling date on their bottles. Ex: 14NOV12.

Alamo: They use a best before date. According to information we have seen the brewer states that the date is date stamped for 90 days after bottling on both cases and bottles.

Alaskan: They use a best before code. Example: A082012 = Best before August 20, 2012

Ale Apothecary: They use a bottling date that is hand stamped on the beer.

Ale Asylum: They use a best by date. It is on the label and marks 90 days after the product was packaged.

Ale Industries: They change the artwork for their labels seasonally giving the beers a 3 month window. Once the new artwork is out, they pull the old one after 30 days.

Alesmith: They use a bottling date on both cases and bottles. The Bottles have the date listed on the shoulder of the bottle in yellow ink. Cases: The cases have the date written on the case with a sharpie and according to information we have seen, the format depends on who's writing it. The X, IPA and Anvil have a 6 month shelf-life. 

Ale Syndicate: Has a Keg only but they have a packaging date on them.

AleWerks (Williamsburg): Has a bottling date on their bottle. Ex: 30JUL12.

Allagash: Uses a bottling date which is a Julian date code laser etched on the bottom of the bottle.

Almanac: Displays a packaging date. Stamped on the master cases only.

American Brewing Company: They use a bottling date. From information we have seen the brewer uses a 4 digit stamp on all  6packs and 4 packs. The first digit is the last number of the year. The following letter is the month (A=January B=February C=March Etc.) the 3 digit is the week it was bottled and the last number is the day. 0A34 means it was bottled January 13th, 2010. Typically the beers last 3 months if stored cold. 09.

Anchor: A basic bottling date. The first number is the last digit of the year. The next letter is the month and the last character is the day. This is how the months are coded: J = Jan, F = Feb, M = Mar, A = Apr, Y = May, U = Jun, L = Jul, G = Aug, S = Sept, O = Oct, N = Nov, D = Dec.The days 1-26 are coded A-Z while days 27-31 are coded with the last digit of the day. For example 8JT was bottled on January 20, 2008.

Anderson Valley: They use a Julian bottling date which is on the bottle neck in small print. The first five numbers printed are the Julian date.  The first two numbers in the sequence represent the year, the next three numbers represent the day of the year. The date only appears to be on the cases.

Angel City: They use a best before date on their bottles.

Anheuser-Busch: Displays a Born on date on the rear label.

Appalachian: They usebottled on date. From information we have seen the brewer states that the bottled-on date and batch number are ink jetted on each bottle about shoulder height. It is day of the year 1-365, year, and batch.

Arbor: They use a bottling date. From information we have seen the brewer states that the last four digits on the sticker on the bottom of the six-pack carrier is the month and date the beer was bottled.

Arcadia: They use a bottled on date. It's stamped on the bottle shoulder.

Atlantic Brewing (Maine): They display a best before date stamped on top of the end panel of each case.

Atlas Brew Works: They use batch numbers that you can look up on their website to get PDFs of brew logs, cellar logs and packaging logs.

Atwater Block: They use a production date. From information we have seen the brewer states that its the month and year production date.

Auburn Alehouse: They use a packaging date. The date is displayed on the label on their bottles. The draft beer has a neck collar saying when it was packaged which corresponds to its filter/transfer and co2 volume check.

August Schell: They use a 6-digit pull date in MMDDYY format. It's on the outside packaging, on the neck of the bottles and under the cans. Under that code, there is a number for brewery purposes that is the day it was packaged.

Avery: They use a bottling date. For their special series of beers, the month and year are printed on the front label. All other beers code is on the shoulder of the bottle with an inkjet printer indicating the date and time that the bottle was filled. Example: 10184B6, 10 = the first one or two digits of the top line indicate the year; 9 is 2009, 10 is 2010, etc… 184 = Julian date, B6 = the tank it was brewed in.