Please describe those jar tops so I can buy some. I assume they allow pressure to release?
Suzuki, They are called “Masontops”. You are correct there is a small x on the top. No bugs, or mold issue. They are available in wide mouth. I bought the wide mouth and 4, 1/2 gallon jars for this a year ao.
But I see one jar that appears to be sealed tight with a lid?
Correct, I had a touch left over and thought it would be a test sample for a 2 week and then replace the top layers and ensure the liquid levels are well above what is needed then check the 6 week. The lid is not tight nor is it loose, just enough to barely let the lid slip to the side.
A year ago I did a 3 and 4 week batch for the first time and had never before made kraut no had I ever tasted anyones homemade. But I’ve been intrigued to do it for over 10 years after my neighbor retired and had a backyard bbq. Another neighbor brought a jar of their family’s homemade but got broken before I got the chance to sample it. I was manning the weber.
The qt jar is packed like the others with the exception that there is no weight or silicone nipple relief. 2 outer leafs of the head are folded and tucked in the top to act as a catch in case of mold and to keep the shredded cabbage down in the brine.
The 1/2 gal all have a folded outer leaf and then the heavy glass weight followed by the silicone nipple and then I added the nylon screw band as I thought that the metal bands would react over time.
My basement counter runs around 66 to 70 seemly most any time that I have looked @ the thermometer on the counter. I’m the only one here that eats it, other than what I may give to others. I repack it into pints and quart jars that I seal with the lid and my vacuum machines adaptor to create the vacuum in mason jars and keep in the fridge. That is another reason for me to do small quantities, keep space for other fun stuff I like to make.