While it is possible to dice them for canning, they will become very mushy in consistency during the cooking process. It does enable more to be fitted into the jar if the final consistency isn't a problem.
Try this. Par boil them until the skin splits and remove from heat. Remove the skin and quarter them. This helps to see any bad spots that may be hidden inside the tomato. I used to can in mason jars but now I pour the tomatos into a quart size ziplock bag and freeze them flat. They freeze fast and take only minutes to thaw in warm water.
Fresh tomatoes, tomato sauce, tomato paste, or diced tomatoes can be used as substitutes for canned tomatoes in a recipe.
Tomato paste, tomato sauce, or diced tomatoes can be used as substitutes for tomato extract in recipes.
You can use ingredients like diced tomatoes, tomato paste, or a combination of herbs and spices to substitute for tomato sauce in recipes.
Depnding whether or not you prefer a more paste like texture than the chunky texture of diced tomatos then you may.
Stewed tomatoes have more juice and bits of tomato that aren't in the paste. It would change the moisture content and the texture of the dish. I don't think it would work out.
To puree tomatoes using tomato paste, mix the paste with water until it reaches the desired consistency. Then, add the fresh tomatoes and blend them together until smooth. This will create a puree that can be used in your recipe.
You could use tomato sauce, tomato paste with added liquid, or crushed tomatoes.
The best tomato paste canning recipe for preserving tomatoes involves cooking down ripe tomatoes until thick, then straining and canning the paste in sterilized jars. Add salt and lemon juice for preservation.
Tomato extract is a concentrated form of tomatoes, while tomato paste is a thick paste made from cooked tomatoes. Tomato extract has a more intense flavor and is thinner in consistency compared to tomato paste. Tomato paste is thicker and has a richer, cooked flavor. In terms of culinary uses, tomato extract is often used to add a strong tomato flavor to dishes, while tomato paste is commonly used as a base for sauces, soups, and stews to add depth and richness.
Tomato paste is acidic with a pH typically ranging from 4.3 to 4.9.
The ingredients are: tomato puree (water and tomato paste), diced tomatoes in tomato juice, jalapeno peppers, onions, vinegar, salt, garlic powder, and natural flavor. The only ingredient that may be questionable is the "natural flavor." You would have to ask the manufacturer if the "natural flavor" is vegan.
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