The USDA is the leading authority on home canning. The only approved lid for home canning is the metal two piece snap lid BUT that is because the manufacturers of the metal two piece snap lids paid big bucks for the necessary testing. There are reusable alternatives including glass inserts and Tattler plastic lids. Steig has been making the Tattler reusable canning lids since 1976 BUT has not paid big bucks for USDA approval. Their product is amazing if you ask me. The lids can be used indefinitely but the gaskets will need to be replaced if damaged or distorted. With proper care you should get 15 to 20 uses from the gaskets making Tattlers very cost effective for canning.
Tattler lids are used slightly different from the metal snap lids. The original instructions said to tighten fully then turn back a quarter inch but that has been modified to tight finger tip tight. Here is a video from Steig demonstrating how to use their lids:
The USDA is worthless, I do believe.
ReplyDeleteThanks for the update! :o)