Unbeatable value for money for this set to use the correct pressure cooker according to the contents to be heated. The best for the microwave, far more than on a sanitary containers and plastic lids, and without competition for its transparency which allows monitoring the degree of thawing or cooking. A little water and steam cooking begins (however not replace a sealed pressure cooker when cooking under pressure is essential or cheaper in cooking energy). Robustness (however prevent free falls on the kitchen floor ...). French manufacturing product recognized around the world, quality of industrial know-how of Nord-Pas-de-Calais!