Enjoy savory tomato flavor by using this Ball Citric Acid. It's a pantry ready alternative to lemon juice when canning tomatoes, as it lowers the pH level without changing the tomato flavor like lemon juice. Most USDA tomato canning recipes recommend the use of citric acid for canning tomatoes. Each 7.5 oz will can and preserve up to 77 qt of tomatoes. It's ideal for using in your home, dorm room, small business, restaurant, deli and more.