Marinating Times by buzzfeed: A longer marinade isnt always better but it usually is. For dark proteins beef, lamb, pork longer is always better. BUT, if the food is delicate shrimp, flaky fish stop marinating after 15 or 30 minutes or the acid will start to break down the protein too much. Chicken is somewhere in the middle, anywhere from 2 to 12 hours is good depending on the cut (skin-on breasts require less time, for example). #Infographic #Marinating_Times