Many drinks, especially wine and some beers, use animal-derived ingredients during processing, even if the final bottle doesn’t list them on the label. These include:
- Fining agents used in wine-making to clarify the liquid and remove impurities. Common agents include bone marrow, casein (a milk protein), and isinglass (fish bladder protein).
- Some modern craft beers also use lactose, honey and pretty much anything you could think of to create new flavours. The most infamous of these has to be cock-ale; popular in the 17th and 18th centuries, this beer had an entire chicken carcass added during the brewing process.
Thankfully, many producers now offer vegan alternatives by using bentonite clay, activated charcoal, plant-based proteins, or by skipping fining altogether.