SouthernBreeze
Has No Life - Lives on TB
Promoted from time to time as a “new” home canning technique, “oven canning” is actually an old technique. It has been around since at least the 1920s — and it has been discredited and advised against since the 1940s.
All I can say is that if Summerthyme has trusted this method for years, I trust her judgement. For me, this method works great on nuts and crackers, but would absolutely not use it with other foods.