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Home canning of mayonnaise is not possible. Mayonnaise is an emulsion of oil, lemon juice, and egg yolks. You would have to heat it at some point to can it. If you heat it, you break it, and it will separate. Once broken, it cannot be re-emulsified. Additionally, you would have to use a pasteurized egg product to prevent pathogen contamination from using raw egg. Anyone who makes mayonnaise at home would shudder at the thought of doing such.

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14y ago

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