The product of the vacuum tumbler works very well, only for the two ends of the rotary sealing cap type structure roller tumbler, the largest drum point for improving the space, so that the rolling effect of the product is uniform, the predatory burning on the drum, the collision, the rhythm , massage, preserve to salt, absorb meat evenly, improve the nodule force and product flexibility of the meat. The vacuum tumbler has many advantages: First, the product is made under vacuum conditions, so that the physical volume of the product is Peng, soft. The taste of the product is better. Second, the product roll causes the product to reduce the heat generated by friction and beat the beat under vacuum conditions. And the product is not oxidized under vacuum. So don't spoil the product of the rolling process. Third, physical tissue fermentation under vacuum conditions facilitates the absorption of materials.