PROBLEM TO BE SOLVED: To provide a method and apparatus for producing noodles, cereals, pulses, unshelled shellfish, instant noodles or the like which can be eaten only by putting in hot water.SOLUTION: Dry somen noodles, cereals or pulses are produced by putting fresh somen noodles or cereals or pulses saturated with moisture in a high-pressure pan followed by heating at high temperature and high pressure, then decompressing the inside of the high-pressure pan to a vacuum state to dry the noodles or the like. Unshelled shellfish is heated with shells a being forcedly closed by use of a clothespin c, and then dried. When the resulting shellfish is put in an aqueous solution, two shells thereof are opened vertically largely in a moment.COPYRIGHT: (C)2013,JPO&INPIT【課題】熱湯の内部に入れるだけで食べることが出来る麺類、穀類、豆類および貝殻つき貝類、並びに即席麺などの製造方法、製造装置を提供する。【解決手段】生のソーメン、水分を飽和した穀類又は豆類を、高圧釜に入れ、高温・高圧で加熱後、高圧釜内部を真空状態に減圧して乾燥し、乾燥したソーメン、穀類および豆類を製造する。殻つき貝類は、洗濯ピンチcを使用して、貝殻aを強引に閉じた状態で加熱し、その後、乾燥する。この貝は水溶液の内部に入れると、2枚の貝殻は上下に大きく口を瞬時に開ける。【選択図】図13