Allagash Brewing Company is a brewery in Portland, Maine.^[2][3] The brewery specializes in Belgian style beers.^[3]

Allagash Brewing Company was founded in 1995 by Rob Tod in Portland, Maine.

Tod observed that while both German and British style beers were available throughout the United States, Belgian-style beers were difficult to find. He established a small, 15-barrel brewery, and began brewing a beer modeled after a Belgian Wit beer, named Allagash White.^[4] The beer gets its flavor from the use of wheat in addition to barley, as well as the addition of Curaçao orange peel, coriander, and other spices.^[5]

The brewery achieved certified B Corporation status in 2019 and qualified again in 2022 with a 20-point increase.^[6]

As of February 2024, Allagash White is the most-awarded witbier in the world, with multiple wins from the Great American Beer Festival, the World Beer Cup, the Brussels Beer Challenge, and the European Beer Star awards, while Allagash Tripel has won the most gold medals combined in competition at the Great American Beer Festival and the World Beer Cup.

The brewery has won the Great American Beer Festival's award for Brewery of the Year in its category twice, in 2021 and 2023.^[7] In 2019, founder Rob Tod was the recipient of the James Beard Foundation Award for Outstanding Wine, Beer, or Spirits Professional.^[8]

Many of the beers Allagash produces are bottle conditioned. The technique calls for two fermentations, the first in the fermenting tanks and the second in the bottle itself (a process known as the methode champenoise). Before the beer is bottled, a small amount of yeast and sugar is added and a second fermentation occurs. It is this second fermentation which produces a notable increase in carbonation, a softer feel and remarkable complexity. This method of bottle conditioning leaves a small amount of yeast in the bottle.

A coolship is used to cool the wort for some of the beers.^[9] In 2007, Allagash was the first brewery in the US to build a traditional coolship for spontaneous fermentation by wild yeasts.^[3]

Today, Allagash has eight year-round beers in its portfolio, seven yearly releases, and numerous one-offs and keg-only releases.^[10]

• Beer in the United States
• Barrel-aged beer
• List of breweries in Maine