Interesting, bcday. The "85 minutes" that I first came across came from a US Agricultural Extension Service website (Oregon's I think) and it claimed 85 minutes for whole tomatoes, packed in either water or juice, hot or cold.
Even that explanation makes little or no sense. When you Pack tomatoes in "their own juice" they ARE raw packed and you still pack as many into the jar as you can so you don't get floating fruit.
I think I shall come down pretty firmly on the side of "somebody at the USDA made a typo" that has been perpetuated throughout all of the various "canning experts." At least until I see some reference to the primary research that dictates this ridiculous change.
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