I've recently purchased a book on desserts. Many recipes involve baking a cake and then dehydrating it over night (at 50° C) using the appropriate equipment. I wonder: What kind of kitchen equipment can be used to dehydrate cake?

I am referring to various recipes from the book "Elements of Desserts" by Francisco J. Migoya. (It was originally in English, but I purchased a translated copy.)

For example, he created red velvet truffles. The outside of the truffles is covered in dry red velvet crumbs, as seen on the cover of the book: Amazon Link

These crumbs are created using a "dehydrator". I only know this kind of equipment for drying fruit, not cake. Can I use the same thing for cake?

  • 1
    I have never heard of this technique can you provide more details? And what do you mean by kind of kitchen?
    – SAJ14SAJ
    Apr 27, 2014 at 20:57
  • 50C sounds like a dehydrator, maybe? Are you translating from this book or did they actually call it desiccating, without mentioning equipment?
    – Cascabel
    Apr 28, 2014 at 2:15
  • 50 C is about 125 F. I am now wondering if these are recipes for meringue or dacqoise layers, which often are dried overnight.
    – SAJ14SAJ
    Apr 28, 2014 at 3:05
  • @SAJ14SAJ I added some more information to my post :-)
    – Sven
    Apr 28, 2014 at 18:56

1 Answer 1


For the specific application of creating dried cake crumbs to use as a coating on the outside of other cakes, or confections like truffles, no specific equipment is required.

A low oven is sufficient, perhaps by heating to a moderate temperature like 250 F / 121 C, then turning it off. The remnants would be crumbled and spread out on a sheet pan, and placed in the oven until quite dry to the touch. Overnight would be quite common; the crumbs would dry out in the cooling oven.

The specialized equipment to do this is called a food dehydrator and is no different than the one used for fruit. It would certainly be effective, but is not necessary.

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