Mrs. Wages Citric Acid 12 oz 1 pk

The USDA recommends the addition of citric acid to each jar of canned tomatoes to reduce potential botulism risk. Although tomatoes are generally thought of as high-acid fruits, a few varieties have higher known pH levels making them more susceptible.
Raises the acidity and lowers the pH
Will reduce spoilage
Citric acid will increase the acidity of home canned tomatoes when prepared by the boiling water process