ViewsAskew wrote:I actually decided NOT to ruin my perfect (for our family) sauce with the lemon juice and a water bath, and instead pressure canned. It's funny, though, no one gave guidelines for doing this that I could find or even said it was possible. Obviously, since we can nonacid things through pressure, it's possible!
Not only is it possible, it is recommended you pressure can your tomato sauce. I do appreciate your intuitive sense not to waterbath can under these circumstances. Tomato sauces (also salsa, soup, ketchup, chili sauce) are not working purely with tomatoes, you have likely introduced onions, garlic, oregano, garlic, ect with quantities varying wildly from one person's taste to another. While you made estimates before, you now have access to via the link in my earlier post to very reliable research based information.
Over the weekend I was talking to the person I usually can with about tomato sauces. We have observed the pressure processing does change the taste to some extent, which we later adjust by seasoning. Does your family favorite taste the same after processing?
ViewsAskew wrote:The rules have changed dramatically in the last twenty years. It used to be accepted that ALL tomato products and sauce were completely safe using the water bath method. Now? Only if you add extra acid, otherwise pressure is recommended.
All the changes were made against new information. I once went to a Master Gardner conference where we met a researcher who had heirloom, low acid and run of the mill tomato plants planted throughout the Illinois. They evaluated the acid levels of all these tomatoes to discover they were not as acidic as supposed. Ironically sometimes the low-acid varieties had less pH (more acidic) than regular and heirloom tomatoes. It was based on this information lemon juice was introduced to tomatoes in home canned products to assure a safe and uniform level of acidity.
ViewsAskew wrote:Almost all veggies are supposed to be pressure canned, except tomatoes. If you look at any canning or veggie discussion board, every year there are debates by people who still follow the "old" rules and say they've never gotten sick. . .
The only time veggies are not pressure canned is when acids have been introduced for pickled products like beets, corn, etc. I make bread-and-butter, 14-day and fermented pickles, which I pasteurized (180-184 F for 30 minutes). Nobody else I know does this, and it is USDA approved, but the pickles remain crunchy, which is what I value in a pickle.
Susan Brewer, PhD used to head the Master Food Preserver program at University of Illinois Extension. I once talked to her about these people who used traditional method of canning vegetables who lay claim to never getting sick. She commented people used to boil the hell out of their vegetables before serving, which may have been their saving grace.
Could you please advise which canning or vegetable discussion boards do you follow?
I see we have another canning enthusiast on board, great!
Regards,