| 摘要 |
<p>PURPOSE:To permit very easy steam heating by a method wherein a package, consisting of a easily separatable film which seals water together with a food to be heated, is stored in an outer casing and heated by a microwave oven. CONSTITUTION:A package 2, which seals water therein, is constituted of a sealing material, at least one part of the peripheral rim of which is separated easily when the internal pressure of the package has arrived at a predetermined pressure. The package 2 is put on the bottom of a vessel 1 constituted of a synthetic resin sheet having resistance to heat, a partitioning plate 4, having through holes 3, is put on the package, a food to be cooked 5 is put on the partitioning plate and a lid body 6 is provided. When the casing is heated by a microwave oven, the water in the package is vaporized and a pressure in the package becomes higher than the degree of about 0.1 kg/cm<2>, then, the peripheral rim of the package is separated easily at the part of thermal bonding and steam in the package and water, not vaporized yet, are discharged into the package while the water is vaporized perfectly into the steam of water by the heating of the microwave oven whereby the food to be cooked may be steamed.</p> |
