Steaming-Add crabs to already hot steaming pot for 5 minutes, test one crab to confirm hotness. If not to preferred temp. add another 5 minutes and check again.
Microwave-Add a few crabs with a damp paper towel covering them for about 5 minutes on high. If not to preferred temp, add another 3 minutes.
Oven-Warm for 375 degrees for about 10 minutes or until meat inside is hot.
Grill-On Medium flame for about 15 minutes or until meat inside is hot.
Remember your crabs are already steamed & fully cooked. You are only reheating & doing so to long can result in drying the meat out.