Recently we found canning jars at Aldi and bought 6 cases of them. I never even thought about them not being suitable for pressure canning but right after we bought them, someone commented on Facebook that their Aldi had them, and they weren’t sure they were good for pressure canning. Someone else did a bit of research and found that they were meant for water bath canning up to 212 degrees. I thought about returning them but I vacuum seal freeze dried foods in jars so I figured I’d keep them and use them for storing the freeze dried foods.
This week was the first time I had used them and I was very disappointed to find that their rings/lids are not interchangeable with Ball/Kerr canning jars. I actually like the way the Aldi jar lids fit better. They’re almost more “fitted” than flat but I really don’t like having to keep up with two sets of lids/rings – one for the Aldi jars and one for the other jars. I am not sure if a Ball lid would fit and if that would make the other rings fit. I need to try that but all I can say now is that the lids/rings, as a unit, do not fit the Ball/Kerr jars and the Ball rings would not fit the Aldi jars with the Aldi lid.
Last year I bought some Anchor Hocking jars at Walmart. I think it was when we bought a lot of cranberries and I was canning juice. Luckily, I did water bath canning and not pressure canning because at that time, I thought canning jars were canning jars!
MONDAY UPDATE: I called Anchor Hocking this morning and was told they do not recommend pressure canning in their jars.
I wish I’d never bought the Anchor Hocking or the Aldi because I’ll always be second guessing whether I’m using the wrong jar for pressure canning. They will get used for vacuum sealing and I’ll do my best to keep them straight. The Aldi jars have a nice “Crofton” image in the glass. The Anchor or plain – nothing on the glass. The Ball and Kerr jars . . I think they all have their image on the glass but I may have some plain ones. I guess from now on, if it doesn’t specifically say Ball or Kerr, it will be used for vacuum sealing only.