Food preservation is a science allowing kids to explore and understand the science of safe food preservation, so lifetime skills are being learned and experienced in the kitchen. ... A vacuum seal forms as the jars cool which keeps air out of jars so that the food inside is less likely to spoil.
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Food preservation is a science allowing kids to explore and understand the science of safe food preservation, so lifetime skills are being learned and experienced in the kitchen. ... A vacuum seal forms as the jars cool which keeps air out of jars so that the food inside is less likely to spoil.