Silicon Dioxide Anti-caking Agent

Silicon dioxide is a form of silica, which is a common mineral found in sand and quartz. It is produced industrially by reacting silicon tetrachloride with oxygen or by precipitating it from a solution of sodium silicate.

Manufacturers use silicon dioxide as an anti-caking agent to prevent powdered or granulated ingredients from clumping together. It helps maintain a free-flowing texture in products like spice mixes, powdered drinks, and salt.

In the U.S., silicon dioxide is generally recognized as safe (GRAS) by the FDA for use as an anti-caking agent. International bodies like JECFA and EFSA have also evaluated silicon dioxide and found it acceptable for use. At typical consumption levels, it is not associated with adverse health effects. There are no significant controversies regarding its use in food.