How do you make tannic acid?

Answer 1

from what i have read, tannic acid is in coffee, and is potentially harmful to the human body.

ANSWER:

Tannic acid is common to decomposing oak, maple and mahogany leaves and bark. It is the commercial form of tannin. It is primarily used in the preservation of animal and mainly cow skins. Thus the uses 'tanning', to 'tan' or a 'tanned' hide. See the related link for more details.

Answer 2

Industrially, you rarely would - the sources in nature are usually adequate for for use as is or for extraction prior to use.

Answer 3

Formula: C76H52O46

Answer 4

h2so4