Firm Tofu Firm Tofu Nature’s Soy Firm Tofu provides a firm texture that is perfect for baking and frying. Plant-Based Gluten Free Non-GMO Ingredients: Water, Non-GMO Soybeans, Calcium Sulfate, Glucono Delta-Lactone. Contains: Soy Item Description See also different: Soft Tofu Silken Tofu Extra Silken Tofu