| 1 | Red wine specifically contains tannin, which can inhibit bacterial growth. | |
| 2 | Tannic variety that has suprisingly has produced a wonderful style of rose. | |
| 3 | Tannometers: Used to determine the tannic acid concentration of tanning solution. | |
| 4 | Do not feed gallic acid or tannic acid to laying hens. | |
| 5 | Because of its naturally lower levels of tannins, it is considered to be an excellent wine for oak treatment. |