• No. The lid sits loosely on top of the jar. They are useful for storing small amounts of leftovers in the refrigerator, or to use as a serving dish for jam or jelly. Be sure and instruct Sierra Trading Post to wrap them extra carefully because if you don't, they will arrive at your doorstep broken!

    Answered on 8/31/2016 8:13:35 AM by High Desert Dweller from California
  • These are not designed for vacuum sealing.
    Answered on 8/31/2016 8:27:04 AM by Product Specialist Greg from Sierra Trading Post
  • Not without modification. They are just glass jars with glass lids, no rubber seals.
    Answered on 8/31/2016 8:51:42 AM by Blueschiz from Georgia