| 摘要 |
A soy sauce is produced by mixing a salt solution having a hard component concentration of not more than 20 ppm as calcium with a soy sauce koji, and subjecting the mixture to fermentation and ageing and then compressing it to obtain a crude soy sauce, and heat-treating the crude soy sauce in a plate-type exchanger, thereby the hard component decomposition on the plate surface being lowered and the frequency of washing the plate surface resulting in considerable decrease. |
