A question I have seen in forums about this technique... what jars do you use, and where do you get them? I have now done several batches, with great success (for me!), and am very happy with the ones that I ordered online from Walmart. I hope that I am not violating rules of the site by posting this link: https://www.walmart.com/ip/Ball-4-oz-Quilted-Crystal-Jelly-Jars-12-Pack/17203435
They are Ball "jelly jars". Probably available at other retailers too...
No need to get the more expensive and harder to find ones with spring clips.
When I use these, and with "finger tightening", the jars emit a few bubbles when submersed. However, I have not yet had an instance where water intrudes. Or, a jar cracking... (After all, they are canning jars!).
Chef Nicole, I just saw your article about how to do this with our home sv equipment. Inspiring, and thanks for sharing! I have done several batches and they are a big hit.