How are the YOUCOOK dishes preserved?

To preserve our dishes, we use a very old, simple trick: we cook our dishes in pre-sealed containers. Cooking kills bacteria and similar microorganisms. Since the container is already sealed, nothing can get in from the outside afterwards. This means we can work completely without artificial preservatives. Basically, our grandparents worked in a very similar way with their preserving jars. This is a gentle way of preserving food.