Clarification and stabilization of wine Organic compounds used as fining agents are generally animal based, a possible cause of concern to vegans. The most common organic compounds used include egg whites, casein derived from milk, gelatin and isinglass obtained from the bladders of fish. Pulverized minerals and solid materials can also be used, with bentonite clay being one of the most common, thanks to its effectiveness in absorbing proteins and some bacteria. Activated carbon from charcoal is used to remove some phenols that contribute to browning as well as some particles that produce "off-odors" in the wine. In a process known as blue fining, potassium
Dried lime Dried lime Dried lime (also known as: black lime; noomi basra (Iraq); limoo omani (Iran); loomi (Oman)) is a lime that has lost its water content, usually after having spent a majority of their drying time in the sun. They are used whole, sliced or ground, as a spice in Middle Eastern dishes. Originating in Oman -- hence the name "limoo omani" and Iraqi name "noomi basra" (lemon from Basra) -- dried limes are popular in cookery across the Middle East. Dried limes are used to add a sour flavor to dishes, through a process known as souring. In Persian