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The Conversation
The Conversation
Kamil Zuber, Senior Industry Research Fellow, Future Industries Institute, University of South Australia

‘Do not eat’: what’s in those little desiccant sachets and how do they work?

Calcium
towfiqu ahamed/Getty Images

When you buy a new electronic appliance, shoes, medicines or even some food items, you often find a small paper sachet with the warning: “silica gel, do not eat”.

What exactly is it, is it toxic, and can you use it for anything?

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