Cooking is forbidden on Shabbat.
Food that is impossible to eat without first being rinsed, may not be rinsed on Shabbat even in cold water.
Salty fish may be rinsed in cold water, since it was (somewhat) edible even before being rinsed.
Source: Kitzur Shulchan Aruch 80:6
- Danny Thursday, 2 Adar 5769
Please daven for a complete recovery for Avraham Moshe ben Miriam Tova; a 4 years old with cancer which has spread to his brain and spine