Bests & Worsts Reviews from Amazon

I loved the idea of reusing lids so I gave these a try. I first tried one lid on jam. It sealed well and I put away. I tried them again on my canned peaches and for the first time in my canning history, I had a jar not seal. The ring wasn't lined up properly. My fault, but way more difficult to use than standard lids. Yesterday, I decided to open my previously mentioned jar of jam. Although the lid is properly sealed, the jar is full of black mold. All the other jars from the same batch that used metal lids are perfect. Yes, I water bathed the jam, yes, I followed the instructions concerning tightening the lid. I'm glad I've only used these on a few jars and haven't lost all of this year's canning. I'm wondering what my peaches will look like month. In the pictures I've included, you can see the seal is in tact but the contents are clearly no good.