Maybe try acetaldehyde? From what I’ve read, higher temps “lock in” the tannins, but in the paper referenced below they were able to remove astringency from persimmons treated at 80C only by adding acetaldehyde.
Maybe try acetaldehyde? From what I’ve read, higher temps “lock in” the tannins, but in the paper referenced below they were able to remove astringency from persimmons treated at 80C only by adding acetaldehyde.