Review on 📦 Optimized Packaging Desiccants: Silica Packets with Indicating Capability by Todd Phillips

' condition. Place them in a toaster on a baking sheet (odorless, non-toxic) at around 200-220F for around 90 minutes. While they're still hot from the oven, keep them in a jar with balls. Like new. Note: If you just bake them until they turn dark blue again, that's not really enough time. Continue baking for the full 90 minutes. I noticed that when I stopped after about 30 minutes they turned light blue again as they cooled because they were already dark blue in the oven. They should be dark blue when fully COOL to make sure they're dry. I'm guessing they were just dry on the outside (dark blue) when I stopped baking early.