For fish sauce definitely, assuming you also use the guts so you can get the enzymes. If you want to make with a protein source that doesn't have the enzymes present, like mushrooms, you can add them separately. Whole fish just fills the protein and protease slots with a single ingredient.
For fish sauce definitely, assuming you also use the guts so you can get the enzymes. If you want to make with a protein source that doesn't have the enzymes present, like mushrooms, you can add them separately. Whole fish just fills the protein and protease slots with a single ingredient.