noun which may take the genitive case particle 'no', noun
salt-free; unsalted; no salt added
Used especially on food labels and in dietary contexts to indicate that no salt was used in preparation.
このパンは食塩不使用です。
This bread is salt-free.
食塩不使用の調味料を探しています。
I'm looking for salt-free seasonings.
Compound of 食塩 (table salt) + 不 (not) + 使用 (use), literally 'no salt used'.