I sliced two large steaks out of them for DHs hamburgers tonight. That's a 9 inch plate! SOOOO MEATY!
mmm...they look delicious! We grew one variety of beefsteak, but none were really so large. Tasty, but not large.
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I sliced two large steaks out of them for DHs hamburgers tonight. That's a 9 inch plate! SOOOO MEATY!
As I understand it, botulism toxin gets produced by the anaerobic C. botulinum microbe. So, the anaerobic environment of sealed jars is great for the microbe! The toxin produced by the microbe is the problem and can kill when ingested. In order to deactivate the toxin, you can boil the contents for approx 10 minutes or more to denature the toxin, such as when you decide to get that jar of canned green beans off the shelf for dinner. If my memory serves, the C.Botulinum can produce spores. Spores are resistant to heat, but will be killed under pressure (pressure canning done properly). Like many things, microbe growth can likely be controlled by acid levels too. That is why some things (low acid) need to be pressure canned, or acidity levels need to be adjusted (adding citric acid, for example) to higher sugar content/low acid items - like many tomatoes available today. The above is just from memory, FWIW.
Because, jams are so high sugar content, and can support primarily yeast and molds (not bad bacteria). Yeast and molds need air. Wax seals off the air! No air - no Y or M.
I know nothing about this - cant comment!
and it's not just the new kind of tomatoes. Even some of the heirloom varieties when not grown in optimal conditions can be too low in acid content. I figure 'why not play it safe'? (woman at a church near my mom's in ohio gave half a church picnic full of people botulism from canning new potatoes the way she's always done it. One person died.