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Can you recharge Silica Gel dessicant packets in a food dehydrator?

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  • 17-11-2020 8:50pm
    #1
    Registered Users Posts: 548 ✭✭✭


    Question for someone with a chemistry background ,


    Is it possible to recharge previously used packets of silica Gel in a Food Dehydrator while your are drying out fruits/mushrooms ?


    I know it is possible to recharge used silica gel in an oven or microwave but I am wondering about recharging them in a food dehydrator while dehydrating fruits at the same time , like would the humidity in the dehydrator be absorbed by the silica gel?


    Food dehydrator is basically a box shaped appliance with trays of fruit inside that has a fan blowing through it and a heating element, used to dry out food for long term storage in case your wondering what it is.


Comments

  • Registered Users Posts: 399 ✭✭Ronanc1


    I know it is possible to recharge used silica gel in an oven or microwave

    I think you just answered your own question there. Sure what are dehydraters but small fan powered ovens that hit temps of 70-80 degrees max. Probably best to just dehydrate them on they're own vs with other foods.


  • Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 91,079 Mod ✭✭✭✭Capt'n Midnight


    yes heating silica gel will dry it out.

    BUT, the sachet may not take the heat, and older packets used cobalt chloride, pink/blue which is toxic so not near food. Other colours aren't quite as toxic but still.


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