Easy to use! Essential product for kimchi, pickling vegetables, and making delicious sauerkraut. Food safe, dishwasher safe, freezer safe, microwave safe, light and easy to operate. It induces anaerobic environment in which the beneficial bacteria (lactic acid-producing bacteria) thrive and the crispy texture and vibrant color are maximized. The adjustable inner vacuum lid to minimize air inside, protect the surface of the food. International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.