Desiccant packets absorb moisture, preventing product damage

Desiccant packets, commonly found in new products, absorb moisture to prevent damage during transport and storage, primarily using silica gel. These packets are often labeled "Do not eat." Silica gel, the most common desiccant, is made of porous silicon dioxide that attracts and traps moisture. While generally non-toxic, they can pose a choking hazard and may contain dyes. Other desiccants include zeolites and calcium chloride, which also absorb moisture. Oxygen absorbers, found in some food products, extend shelf life by removing oxygen, preventing oxidation.