Michelle is a very intelligent canner on YouTube. She took the time to explain how to use Harvest Guard Reusable Canning Lids and explained what could go wrong in the process and how to fix it. She reiterates how important it is to read the directions when using Harvest Guard Reusable Canning Lids. After that, she takes the viewers on an up-close journey into the proper usage of the lids and gaskets and how to get a perfect seal every time. She has a lid that is slightly domed and she explains how this happened and what to do about it. She loves the product and cannot wait to use them again.