Mrs. Wages Citric Acid

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 to the spores of Clostridium botulinum. The addition of Mrs. Wages® Citric Acid raises the acidity and lowers the pH.