When you get your first cast iron skillet, you’re eager to see how much it can master. Sizzling grilled cheese? Check! Fajitas? Check! You’ll start to eat skillet dishes six nights a week just because you love the flavor and the simplicity. But even Superman has his kryptonite. Here are 5 types of food you should steer clear of in your cast iron skillet. 1. Acidic Foods Cast iron can’t handle large quantities of acidic foods very well. Acidic foods allow the metal to leach into your foods, but they can also breakdown your seasoning.  This means like foods with tomato sauce, vinegar or lemon-based sauces will pick up a metallic taste from the pan. This can happen in as little as a half hour, so if it’s a white wine chicken dish you’re going for, make the marriage of the two quick, or better yet, do it outside the…