Company email (March 2022)
"We have add lactose and honey to some of our limited releases in the past, and those beers contain an allergy warning on them. A majority of our year-round products contain no animal by-products though."
Castle Island Brewing (unless allergy warning present)
Vegan
This product is listed as vegan friendly.
What the company told us
Correspondence on record, with the date of each entry.