also: せいふんしょ
noun
flour mill; gristmill
A facility where grain is ground into flour. 製粉所 is the standard term for a commercial flour mill.
この町には古い製粉所がまだ残っている。
An old flour mill still remains in this town.
小麦は製粉所で粉にされる。
Wheat is ground into flour at the flour mill.
Compound of 製粉 (seifun, 'milling') + 所 (jo/sho, 'place'). The reading じょ is the standard on'yomi for 所 in this compound; しょ is a less common variant.