1, if it is a large lobster steamed whole, about 500 grams to steam 10 minutes, every additional 100 grams will increase 2 minutes, individual larger lobsters need to steam more than half an hour.
2, if the large lobster is to change the knife and then steamed, and the size of the lobster itself has nothing to do with the size of the lobster, usually steamed over high heat for about 10 minutes.