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.


Additional information

Weight .5 lbs
Dimensions 8 × 1 × 1 in


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