Two Maine beer-makers who are celebrating their 20th anniversaries this year were present at the Boothbay Railway Village on Saturday for visitors to sample their frothy brews. Three other recently established brewers were in attendance setting up displays and tasting areas in buildings adjacent to this weekend’s Antique Auto Show.

"I learned in Montréal," said Steve Gorrill of the Sheepscot Valley Brewing Company.

Gorrill said he studied the now popular Belgian ale from Pierre Rajotte, a Canadian brewer and yeast expert.

"I got the recipe from him," he said. Gorrill and his wife Louisa began their small scale operation from a reconstructed barn at their home on Townhouse Road in Whitefield in 1995.

"We called it Mad Goose Ale,” said Gorrill.

Although they since moved to a larger facility on Hollywood Boulevard in Whitefield and their Pemaquid label is now their largest seller, Gorrill said that Mad Goose has been revived for their weekly tastings at the brewery. The Sheepscot Valley Brewing Company is distributed by Pine State Trading Co.

In the same year, the Allagash Brewing Company of Portland got its start, also with a Belgian ale. Allagash has grown steadily since and now sports 30 varieties and distributes to 17 states.

Among the now 63 brewers in Maine, three relative newcomers were also in attendance: Foundation Brewing Company of Portland, established in 2014; Banded Horn Brewery of Biddeford (2013); and Oxbow Brewing Company of Newcastle (2011).

According to Tyler Havrilko of Oxbow, the company has now expanded operations to Portland with a larger building and a new tasting room.

Linking the expanding beer-making operations in southern and Midcoast Maine is the Maine Brew Bus, which schedules tours to 20 breweries in converted green school buses.

According to Mike Guarracino, his business has expanded from 1,500 tour riders yearly to over 2,000 already in 2015.

"We are looking for people to learn from the booming beer industry," he said. The tours include visits to three to four breweries, along with information, sampling and food provided on the way.

As for visitors to the exhibits on Saturday, at least one woman  appeared knowledgeable about Maine breweries and their different varieties.

According to Michele of Moultonborough, New Hampshire, Oxbow’s “Loretta” is her favorite.

"I fell in love with it,” she said.