Look up "gongfu steeping", it is a well established method, e.g. "15 to 30 seconds for the first infusion, then add 10 seconds to each subsequent infusion. If i

Look up "gongfu steeping", it is a well established method, e.g. "15 to 30 seconds for the first infusion, then add 10 seconds to each subsequent infusion. If it seems a bit weak, leave it for longer."