Seems like a shame to throw away and must have a use.

  • @MalachaiConstant
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    18 months ago

    I assumed the hot water was to temper/test the glass so it doesn’t shatter when you pour in the hot jam

      • @Passerby6497
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        28 months ago

        I think the boiling water would also be to help sanitize the container, but yeah, I’ve always boiled the container with the lid on but loose after putting the contents in and closing while hot to get the container sealed.