Edible baking soda can be dried squid. Dried squid with water to wash clean, wash off the top of the quality. Dry squid into the basin, pour the appropriate amount of warm water, water temperature to 40 degrees is appropriate. Soak for about 2 - 3 hours, slightly soften and then fish out. Pour in warm water and add 2 tbsp baking soda (1:100 ratio of baking soda to water), mix well, then add the softened squid again and soak for 2-3 hours. Remove the squid from the water and rinse repeatedly with water to remove any residual solution. Pull off a layer of membrane on the surface of the squid and soak it in water again. Edible baking soda is mainly used as a carbon dioxide generator in food, beverage sodas and cold drinks. Edible baking soda is white powder or fine crystals, odorless, salty taste, easily soluble in water, but less soluble than sodium carbonate in water, slightly soluble in ethanol, aqueous solution is slightly alkaline. Easily decomposed by heat. Decomposes slowly in humid air. Dried squid edible part of 95%, 13% more than similar fish products dried cuttlefish; protein content per 100 grams of 65.9%, 27.8 grams more than dried cuttlefish; containing calories 316 kcal, 42 kcal higher than dried cuttlefish; dried squid also contains carbohydrates, calcium, phosphorus, iron and other nutrients, is one of the bulk of seafood exported from China, and is exported to Japan, Eastern Europe, Africa and other places.