What caused the Otter Creek tank explosion?
Fulham said a backup valve designed to let off pressure from the fermenting beer failed on one of the brewery’s smaller tanks, which contained Wolaver’s Brown Ale. The explosion also knocked over another 40-barrel (1,240-gallon) tank of Wolaver’s IPA.
“The valve was faulty,” said Fulham. “We’re proud of our safety record here, and we’ve redoubled our efforts to make sure all of our backup devices were working.”
via After explosion, Otter Creek brews again | Addison County Independent.
Breweries: Otter Creek Brewing
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