If I use cornstarch in my jam recipes instead of pectin, will it change the shelf life of my jams? Is there any reason I shouldn't use cornstarch?
I'm not a jam expert but I have cooked with cornstarch a lot and it presents no problem. It is a good substitute in vegan products for instance it is great for lemon curd
i see many online recipes that use cornstarch, or that advocate adding conrstarch if things are not solidifying as they should
i think an issue with it is that it thickens rather dramatically so one might have to be careful of that
We don't have pectin where I live. In order to substitute for pectin, I use lime juice and the skin. I will use a garlic grader in order to grade the skin of the lime very fine. I add 2 tablespoons of lime juice and around the same for the lime peel. This will jell your jam and make it perfect. I've never had an issue using this when I make jam here.
Lime Peel is a source of Pectin :-)
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I cannot find pectin at these stores nearby. Can I substitute with unflavored gelatin?
No. They are 2 different products. Gelatin comes from animals and pectin from fruit. Unripe fruits contain more pectin than ripe, so if you don't have pectin, you can do like they did before commercial pectin came around, and use a portion of your fruit that is not fully ripe. Apple is best.
If you were to use gelatin, it would not hold up under the heat or the acid of the fruit.
You need to use fruits high in pectin. You cannot use canned or frozen fruit juices. Peels will add pectin to the product. There are also different processing times for jams and jellies without pectin. This article discusses it in greater detail: nchfp.uga.edu/
I am going to make some pepper jelly. The recipe calls for pectin, but the food store nearest me only had gelatin. Can I use it in place of the pectin? Thanks!
I would not unless you can find a recipe specific to using the gelatin. You will not get the consistency you want. I have never seen a recipe that calls for gelatin. Maybe someone here has one. I only ever used the pectin and that is all my old recipes called for.
No. Order it from Amazon if your local stores do not have it.