Acorns contain a lot of tannin which can cause severe stomach upset. According to Kansas State University, acorns do become safe to eat when they are roasted; the tannin content is reduced considerably by heating. (source: Reference.com) Reply
Acorns contain a lot of tannin which can cause severe stomach upset. According to Kansas State University, acorns do become safe to eat when they are roasted; the tannin content is reduced considerably by heating. (source: Reference.com)