Food Canister: Material: Made of food-grade 304 stainless steel. Net Weight: 0.66kg. Dimensions: 30oz: 4.8(height) x 3.94(diameter) inch. Capacity: The capacity of this food canister 40 oz, large enough for food. Design: The wide mouth allows for easy filling and scooping of whole coffee beans, grains. Usage: It can vacuum store food, prevent dust and moisture, and maintain the original flavor of the food. The active vacuum seal technology significantly slows oxidation, preserving the essential oils in coffee, the delicate flavor of tea, and the crunch of dry goods.