Want to seven points cooked steak, how can you not use thermometer

In western food, steak cooked degree is divided into six levels: Blue: nearly raw steak, 46 49 ℃ ~, 115 ~ 120 ℉, both the front and hot for a while, outer slightly cooked is convenience to hang juice, all open inside or blood shout. Rare, medium Rare, 52 ~ 55 ℃, 125 ~ 130 ℉, frying time not more than four minutes, the inside of the meat is almost cold, is said to be very tender and juicy, Is the blood of water) 。 Medium Rare, Rare, 55 ~ 60 ℃, 130 ~ 140 ℉, about 6 - time 8 minutes, the heat has spread to the inside, but the meat is red. Medium: Medium, 60 ~ 65 ℃, 140 ~ 150 ℉, 8 - 10 minutes, it was already dark brown appearance, the fleshy red inside, is already cooked meat to eat. Seven Medium, Medium Well: 65 ~ 69 ℃, 150 ~ 155 ℉, need to 12 minutes, inside of the meat is brown, taste may be a bit old. Well Done, Well Done, 71 ~ 100 ℃, 160 ~ 212 ℉, don't be fooled by the seemingly good name. Well-done beef, basic was dried gravy, need to test your mouth. General restaurant to eat outside, seven medium is more conform to most people taste. You can see nearly raw steak well-done, the key lies in the control of temperature and time, this time you need to use stainless steel bimetal thermometer, western-style food chef is good at using a thermometer. The bimetallic thermometer probe into the center of steak, can measure temperature to the center of the steak, isn't that amazing? ！