With its patented inner lid and valve, the AirScape forces the food-destroying air out of the food storage canister away from your food, extending the life of your coffee, tea, flour, sugar, cereal, seeds, herbs, nuts, pet food or any perishable really, multiple times over. Designed of durable, BPA-Free, restaurant-grade stainless steel not only is the AirScape kitchen canister non-toxic and nearly impossible to break, but they are also stain and odor resistant thus they wont impart flavors. In other words, they can be used for coffee storage one day, brown sugar the next and your brown sugar wont taste like coffee. This characteristic makes them the absolute perfect container for food storage.