| 摘要 |
A method of producing a cracker from a raw material such as grain such as unhulled rice, or artificial rice, composite raw material formed in a chip-shape, or the like is disclosed. It comprises steps of compressing and heating for a predetermined time the raw material already processed to some extent to advance and contained within a hermetically closed chamber defined in upper and lower baking molds heated, moving instantaneously the upper mold finely up and down to spread the raw material on a bottom surface of the lower baking mold, and in the foregoing state, compressing and heating the raw material again, and expanding instantaneously the compressed and heated raw material at a time when the upper baking mold starts moving upwardly to remove the compression, thereby shaping the material in a cracker of a desired form in a self-sustaining structure. An apparatus for carrying out the method is also disclosed.
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