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Comment by bobthepanda

7 months ago

At least with Heinz recipes are specifically not covered by patents.

Milk "recipes" are: https://patents.google.com/patent/US2550584A/en

So are fruit leather "recipes": https://patents.google.com/patent/AU2021200204B2/en

I'd imagine they had something like that. Probably have to do something special to not burn the ketchup while you heat it.