• fastandcurious@lemmy.worldOP
    link
    fedilink
    arrow-up
    8
    ·
    9 months ago

    I wonder if they actually use the same trick to actually put the lid on as-well to create as-tight of a seal as possible

    • Alexstarfire@lemmy.world
      link
      fedilink
      arrow-up
      9
      ·
      9 months ago

      I assume all parts are heated first because that’s how you ensure it’s sterile. It also serves to make a slight vacuum once cooled which will keep everything sealed.