Yes. Silica gel beads, especially those with indicating colours (e.g. pink to blue), can usually be reactivated and reused 3 to 5 times before their performance starts to decline.
Can silica gel be reused after it changes colour?

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Testing for Yollie
Yes. Silica gel beads, especially those with indicating colours (e.g. pink to blue), can usually be reactivated and reused 3 to 5 times before their performance starts to decline.

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