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Your problem is actinidain, an enzyme in the kiwi (and to a lesser degree even in the mango) that causes the jelly to stay liquid. Heat deactivates it, so your first step is to boil the whole thing. The minimum temperature to denature actinidain is 60 C, but I recommend to exceed that, just to be sure. You should then add more gelatin, assume that at least a ...


TL;DR: likely because demand was too low to sustain commercial distribution Barring any relationship to a specific historical incident, it's very difficult to find out why a specific food is no longer commercially produced. In the absence of specific reasons, we can see a number of contributing factors as to why grape preserves would have gone off the ...


Commercial peanut butter is shelf stable for several months in your pantry, however it is not acidic enough for home canning. When you remove most of the air in home canned goods you are actually setting up a good environment for botulism to grow. Botulism can’t thrive in an acidic conditions, that is why a low ph is essential for safe home canning.


I received the following response from Bonne Maman in France Dear Mr. XXX, Thank you for contacting Bonne Maman®. We are always happy to hear from our consumers. You are the reason Bonne Maman is such a successful brand. Bonne Maman is owned by Andros SNC, a privately owned, family run company, situated in the southwest of France. Our ...


It could also possibly be because the modern varieties of grapes commercially grown for eating do not make a good jelly or jam. Having made jam with a variety of grapes I have found that most of the grapes we buy as table grapes make a fairly ordinary jam whereas if you can get hold of older cultivars, grape jam/jelly is an amazing preserve.


For what it is worth, in case you want to make your own grape jam. The recipe calls for basically four things: grapes, sugar, lemon, butter. And as I have gotten a lot of recipes off of, I figure this might be worth a look. Check it out here.

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