Specialty Items › Food grade Sodium Hydroxide (lye) Image 1 of 2 Image 2 of 2 Food grade Sodium Hydroxide (lye) from $2.95 An alkali used in the preparation of a number of food items : pretzels , noodles, canned tomatoes , hominy etc Size: Select Size Mini jelly jar 1/4 pint pint Quantity: Add To Cart Added! An alkali used in the preparation of a number of food items : pretzels , noodles, canned tomatoes , hominy etc