The trick with seafood is to make sure it doesn’t stick. So coat it lightly with oil and check that the grate is clean and very hot. For fillets and whole fish, you can also try this foolproof (albeit more time-consuming) method: Place the fish on a soaked cedar plank or a lightly oiled piece of heavy-duty foil, then grill (covered), over medium indirect heat.
Brush your grill grates after every use (inspect for wire brush bristles before cooking), and thoroughly clean them every couple of months, depending on grill usage. And twice a year, you should give your grill a thorough cleaning, which helps it cook better and last longer. The basic process is the same for gas or charcoal grills; charcoal grills just have fewer parts.
Prepare the corn. Trim the silk from the top of each ear to prevent it from catching fire and burning. Peel away the first layer of husks and remove the stalk end using a serrated knife to expose the bottom of the ear. This will make it easier to slide the ear of the husk, post grilling. (Optional: Peel back a 1-inch section to expose the kernels and char some of the corn.)
After about 30 minutes, turn the heat off and let the grill cool down. Wipe things down to remove any lingering residue and you should be good to go. The grill grates should have turned a bronze or dark brown color if they are metal or a darker brown/black color if they are cast iron. For cast iron grates, the oil will have penetrated the pores of the metal and created a smooth non-stick surface that will be perfect to cook on.
Outdoor grilling is a great way to get together with family and friends and enjoy tasty food. However, the outdoor fun is only possible with a grill that is cleaned and maintained throughout the year. There are a few simple cleaning steps that you can do after every time you grill, along with deeper, semi-annual cleaning steps to keep your grill working its best for years to come. An outdoor grill that is kept clean and maintained will stay in good working order and will ensure that the food you cook on it always tastes great.