BrewTan B is a natural tannic acid developed for brewing beer. Increase to shelf life and flavor stability are some of the benefits of adding BrewTan B to your beer, as well as added colloidal stability.
The gallotannins in BrewTan B react with wort proteins through adsorption and precipitation - the BrewTan B/protein complex is left in the spent grains when BrewTan B is added to the mash, or removed in the whirlpool when it is added to the boiler.
It is highly effective at coagulating and flocculating proline and –thiol –containing proteins, but does not interact with foam-positive proteins. This in turn inhibits downstream lipid and protein oxidation, improving flavor stability and shelf life.