Desiccant for 5-Gallon Bucket Food Storage Moisture Control - 12 Individual Packs Use these desiccant packs to knock down humidity in food storage containers. This item contains qnt (12) desiccant packs. The 12 desiccant packs are sealed in plastic bags for shipment. Each desiccant pack is appropriate for use in keeping a single 5-gallon food storage bucket dry. These Tyvek enclosed desiccants are Food/Pharmaceutical grade. After use they may be reactivated by heating in an oven. Reactivate bags by heating to 245 degF for 16 hours. Note that the Tyvek package melts sharply at 275 degF. A residential oven may overheat the and melt the packages even if set to 245 degF. Be careful when drying in a residential-style oven and consider drying at a lower temperature for a longer time.