1, steak is different from most other cooked food, steak is usually not cooked to the full, but can be adjusted to personal preference of the degree of rare. The degree of doneness is distinguished by the odd number, mainly divided into: whole raw steak (Raw), nearly raw steak (Blue), a cooked steak (rare), three-minute cooked steak (mediumrare), five-minute cooked steak (medium), seven-minute cooked steak (mediumwell), the whole cooked steak (welldone)

2, some people are worried that five-minute cooked steak will not have parasites. Steak will have parasites, in fact, the general situation of the production of steak the use of beef should be at least pollution-free beef, it is a kind of non-polluting, non-toxic, safe and high-quality food, beef itself does not contain parasites. Reliable steaks are raised in feedlots, where the cattle are slaughtered and cut out various parts of the meat, and the surface of this meat is sprayed with ferritin to prevent the surface from getting infected with these parasites. And the inside is not contaminated as long as it is not cut. So a reliable steak is basically safe no matter how mature it is. However, some unscrupulous traders will use sick beef to make the best, the average consumer should have a certain ability to recognize, can not pay too much attention to the price, should go to a reputable brand store to eat.