ABV = Alcohol by Volume
Al = Aluminum
APA = American Pale Ale
AAU = Alpha acid unit (the potential bitterness of hops)
B = Brix or Balling (a measure of sugar)
B3 = Beer, Beer, and More Beer (homebrew supplier)
BMC = Bud Miller Coors
BW = Barleywine
BYO = Brew Your Own magazine
CAMRA = Campaign for Real Ale (Britain?s grassroots organization for the preservation of cask-conditioned ales)
CFC = Counterflow Chiller
CPBF = Counter pressure bottle filler
CPF = Counter-Pressure filler
DME = Dry Malt Extract
DMS = Dimethyl Sulphide (produces cooked corn aroma in wort that isn't cooled quickly enough)
EKG = East Kent Golding hops
FG = Final Gravity
FWH = First Wort Hopping
GU = Gravity unit (the specific gravity's last two digits)
HBU = Homebrew bittering unit
HD = Home Depot
HERMS = Heat Exchange Recirulation Mash System
HLT = Hot liquor tank
IBU = International Bittering Units
IMHO = In my humble opinion
IPA = India Pale Ale
L = Lovibond (a measure of color)
LHBS = Local Home Brew Store
LME = Liquid Malt Extract
LT = Lauter tun
MB = Beer, Beer, and More Beer (homebrew supplier)
MLT = Mash/lauter tun
MO = Maris Otter
NB = Northern Brewer
OG = Original Gravity
P = Plato (a measure of sugar)
PBW = Powdered Brewery Wash (a cleaner)
pH = An expression on a negative log scale of 0 to 14 of the extent of acidity or alkalinity of a substance. Materials with pH 7 are neutral. Those below pH 7 are acidic and those above are caustic. Every pH unit of 1, increases or decreases the acidity by a factor of 10.
PPM = Parts per million
QD = Quick Disconnect
RDWHAHB = Relax, don't worry, have a home brew.
RHEMS = Recirculating Heat Exchange Mash System (same as HERMS)
RIMS = Recirculating Infusion Mash System
RO = Reverse Osmosis
ROFL = Rolling on the Floor Laughing
SG = Specific Gravity
SRM = Standard Reference Method (a measure of color)
SS = Stainless Steel
SWMBO = She Who Must Be Obeyed
TG = Terminal Gravity (same as Final Gravity)
WLP = White Labs yeast