I've had great success using these lids in my pressure canner. Sadly, there will never be a congratulatory 'ping' indicating success.

Do Tattler lids pop?

There will be no "pop" as the seal is created, but after the jars have cooled, you may feel a slight indentation of the plastic lid. Leave the jars to cool completely. Before putting into storage, remove the jar rings and try lifting the lids. If a lid lifts off, that jar did not seal.

Are Tattler lids any good?

5.0 out of 5 stars I love the Tattler lids! I love the tattler lids! I've been using them for several years and they save me a bundle of money on metal canning lids. They are easy to use and last forever, can be used over and over.