text: can u cook or cure fish using just lemon juice or something citric acids? i've watched this survival show that said you can cook, preserve, cure or whatever, fish in just lemon juice or something with strong citric acid. what i need to help me further my project im doing on this is some legit facts. please give me resources that i can use. all i am getting is stuff about cooking fish and what not. pleas help me. in cevche, the fish is "cooked" by acidification.  just as in pickling, the acidic environment is hostile (but not always lethal) to pathogens.