YAMAMOTO CO., LTD.

Primary Quality and Secondary Quality

The quality of rice consists of both the primary quality and the secondary quality.
Primary quality consists of those items on which grain is generally inspected at a drying facility such as cracking rate, moisture content and test weight. That is to say, characteristics of the form of the rice make up its primary quality. Secondary quality consists of those characteristics related to the storage and processing of grain that are demanded by the consumer. The taste of rice belongs to this category. In addition, characteristics which come into question in a rice milling plant, such as the ease of milling and the storability of the grain, come into secondary quality.
It cannot necessarily be said that rice that is of good primary quality will be of good secondary quality and that rice of poor primary quality will be of poor secondary quality, but it is certainly true that there is a close connection between them.