Barkometer

Description

Barkometers are used to measure the amount of tannin in a bark tanning solution, through specific gravity. While I haven’t used one extensively yet, it seems like an excellent tool for determining the relative strength of solutions made out of tannin-rich plant materials that you are working with (as opposed to extracts that can be predictably used with a recipe). These barkometers are precision tools made by a medical hydrometer company with 100 years experience.