PROBLEM TO BE SOLVED: To obtain rice-cooking water most suitable for such cooking that rice cooked in large quantities for business use can keep delicious taste even after being cooled, and can maintain proper stickiness and hardness for a prolonged period, in comparison with the case of using city water as rice-cooking water.SOLUTION: From among many kinds of ocean deep waters, ocean deep water in which a mixture ratio between magnesium and calcium is a specific value is selected and utilized.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】 業務用に大量に炊飯するご飯が、水道水を炊飯水とした場合と比較して、冷めてもおいしく、適度な粘り、硬さが長時間持続するような炊飯に最適の炊飯水を得ることを目的とした。【解決手段】多くの海洋深層水の内、マグネシウムとカルシウムの混合比率が特定の値の海洋深層水を選択して、これを利用することにより上記の課題を解決した。【選択図】なし
