Vani Hari ingredient. NPR cited this as an example of fearmongering and lack of subject matter knowledge, as isinglass, derived from fish swim bladders, has been used as a natural fining agent in food and drink for centuries, and is in any case used primarily in cask ale, not vat-brewed beers, which are normally cleared by filtering. The day after she posted her petition, Anheuser-Busch and MillerCoors released ingredients in many of their products. The trade publication "Beer Marketer's Insights" called Hari's petition an "attempt of fear mongering in the name of advocacy." Hari later claimed that she was aware of the
Trub (brewing) fermentation. It is composed mainly of heavy fats, coagulated proteins, and (when in fermenter) inactive yeast. The term has its origins in the German word "trübe" (also "trüb"), which means "cloudy", via the brewing and winemaking terms "Trubstoff" ("cloudy" + "material") and "Weintrub" ("wine" + "cloudy"). Trub (brewing) In the process of brewing beer, trub is the term used for the material, along with hop debris, left in the whirlpool or hopback after the wort has been boiled then transferred and cooled. Brewers generally prefer that the bulk of the trub be left in the whirlpool rather than stay in