This article is from the Food Preserving FAQ, by Eric Decker firstname.lastname@example.org with numerous contributions by others.
Find a similar recipe in the USDA Guide. Check ingredients, proportions,
If there is no similar recipe, no processing times can be estimated. To
err on the side of safety, do not use the recipe, or freeze the product.
If there is a similar recipe, check proportions of tomato to vegetable, and be
sure there is added lemon juice or vinegar. Minor adjustments to quantities of
ingredients may be made to fit the USDA recipe.
USDA recipes for juice can not be used to judge chunky sauce recipes, or
Spices and seasonings are not crucial to the safety of a recipe and can