Method for producing soft dog chews

A method for producing dog chew including:

• A step for washing impurity content away from the fresh second-layer hide with flowing clean water in a revolving wooden drum for about half an hour to an hour;
• A step for washing the fresh second layer hide with 4-6% in concentration of ammonium sulfate solution inside a revolving wooden drum for about one and a half hour to two and a half hours for the neutralization of alkalinity in the hide. A step for washing the fresh second layer hide with flowing clean water in the revolving wooden drum until the value of Ph reaches 7;
• A step for washing the fresh second layer hide obtained from step 3 in 15-25% in concentration of hydrogen peroxide solution inside said revolving wooden drum for one to two hours, comprising a following step for keeping the hide in static state in the wooden drum in hydrogen peroxide solution for eight to ten hours, whereby the fresh second layer hide is completely disinfected and bleached;
• A step for taking the fresh second-layer hide out of the wooden drum and squeezing the water out by use of, for example, a squeezer;
• A step for soaking the second-layer hide in the fluid mixture of edible glycerin, sorbitol and water in which the ratio of the above components is 20-40:40-80:80-150, respectively;
• A step for drying the fresh second-layer hide in the air for six to eight hours and then cutting and forming it into predetermined shape;
• A step for drying the formed dog chew in the open air until no fluid used in step 6 is remained on the surface of the dog chew;
• A step for disinfecting the dog chew in ultraviolet ray and packing it.