I always salt the fish myself. To do this, you need to mix salt with sugar in a ratio of 3 to 1 (more salt than the fish needs, it will not take, salt boldly), well sprinkle the fish with vodka (cognac, whiskey or tequila – what is available), sprinkle it with a mixture of salt and sugar, cover with food wrap and send to the refrigerator for a day. After a day, wash off the salt and dry with a paper towel.