Reusing "one time use" canning lids
Short version: I have good success with doing this. I do examine the used lids carefully and discard any that were distorted upon their initial removal when first used. When using I carefully follow the Ball company recommendation of heating in water to 180F [but not boiling] for at least 10 minutes immediately prior to use. This softens the rubber sealing compound to facilitate a good seal. I have not had a rate of failure to seal any different than with virgin lids which is to say, very rarely. I just in the past week finished my cucumber pickle canning and for fun tried a single jar with a twice used lid. Worked fine. I am marking the lids that are on their second use so that I can do a larger number of twice used lids next year. I chaff at the idea of spending ~30 cents on a lid when the total production cost of the jar contents is much less. If I can reliably get 3 uses out of a lid then not so much.