I’ve had a hankering for a tomato basil soup lately, and with all our tomatoes ripening like crazy, I decided to make enough to can. I’ve been picking and refrigerating them for three weekends, and now I think I have about a gallon – enough to use the recipe I found at pickyourown.org, a site I’ve found extremely useful over the past year. I can’t wait to taste it! I’ll admit to being a bit nervous, though. Tomatoes have to be pressure canned, and I haven’t used a pressure cooker for that purpose (I use it for water bathing jam and pickles) since I was in high school and closely supervised by my mother or an aunt. Sofie has been sleeping more dependably the last few nights, so I’ll do the canning part after the kids are in bed. Pressure canning takes a bit of focus, something I’m a bit short on at the best of times, and for safety I’d rather not have small people underfoot. This should be exciting!

Since when do tomatoes need to be pressure canned? I never did…
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Everything I’ve read says they are borderline with their acidity. They might be safe, or they might not. The consensus seems to be that if you’re adding in other stuff (onions, basil, etc) it’s likely to compromise their acidity enough that pressure canning is necessary. I’m guessing a plain tomato sauce would be okay.
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