CONTAINER FOR COOKING FOOD IN A MICROWAVE OVEN
Cooking food by steam is a very gentle way of cooking which is particularly popular as it tends to preserve nutrients in the food. Several different kinds of containers have been developed for the purpose of cooking food by steam in a microwave oven. During the cooking the vapor pressure inside the container increases. For this reason, the container should also have an opening for venting the steam in order to prevent an excessive increase of pressure.
This invention provides a container for both packaging and cooking food. This container allows for a cost-efficient production, good cooking behavior and at the same time gives the user visual feedback about the status of the cooking.
The container consists of two parts, which have a complementary form such that they can be out together forming a closed strucutre. The two parts are designed such that when the pressure increases, the upper part can slip over the other. Furthermore, the upper part presents an aperture, which allows for venting the steam. At the desired pressure, the vapor steams out of the container while the pressure and the temperature inside the container remain constant.
This invention has in particular the following advantages:
- The movable upper part gives a visual indication about the status of the cooking
- The container has preferentially a cylindrical shape, which makes it easy to handle. For example, the container can be easily shaken, in order to mix the food. This is particularly advantageous for instant food
- The container is structurally simple, hence less costly to manufacture
- The container can be produced from recycled paper, which makes it easy to color and shape. Regarding its design, the container is extremely versatile.
This invention is particularly suitable for storing food and cooking or heating it up in a mirowave oven.