What did Appert use to seal the containers?
Wax
Rubber
Plastic
Clay
Answer
Wax was used by Appert to seal the containers. This was an important step in his process of preserving food, as it prevented air from entering the containers and spoiling the contents. The wax seal also helped to create a vacuum inside the containers, which further inhibited the growth of bacteria.
Mastering the Art of Preservation: The Nicolas Appert Challenge
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