Shrimp can be cooked in about 3 minutes.
Generally speaking, when cooking fresh shrimp in hot water, normal-sized shrimp can be cooked by placing them in a pot of boiling water and cooking them for 2-3 minutes; slightly larger shrimp may take about 5 minutes. As long as the exterior of the shrimp cooked until red is cooked, do not cook for too long, because the shrimp meat cooked for too long will be very difficult to eat, no fresh flavor and no chewy, eat rotten. After the shrimp become red and cooked, fish out, quickly pass through the ice water, shrimp meat tastes more Q Q elastic firm.
With the naked eye to judge, the color of the shrimp red, basically cooked; you can also look at the degree of curvature of the shrimp body, if the shrimp is "U-shaped", then it is just cooked, this time you can quickly fish out, very perfect; "V-shaped" is not yet fully cooked, to cook a little longer. V-shaped" is not fully cooked, to cook a little longer, "O-shaped" is overcooked.
Purchase shrimp notes:
1, do not buy black color shrimp
Whether it is river shrimp, sea shrimp, no matter what the varieties of shrimp, shrimp color is either green or green-gray, or red, but must remember that it will never be black! Because, shrimp contains a large number of polyphenol oxidase, when the shrimp dead and long oxidation, the body of polyphenol oxidase will produce a large number of melanin due to oxidation.
2, do not buy shrimp head
Many times, go to buy shrimp, will see some of the shrimp head off the shrimp, the shrimp price is cheap, the boss will say: these shrimp is just dead, go home and peel the shell, as a shrimp with is also good! In fact, the shrimp color black, at least shrimp is still intact, if the shrimp head are off, indicating that the shrimp has been very unfresh.
3, buy the curvature of the shrimp
Fresh shrimp, shrimp head, shrimp, shrimp body, shrimp tail is closely linked, so it is into a slightly curved; if it is not fresh shrimp, shrimp shells and shrimp meat connected to the part of the shrimp is loose, the shrimp body is straight, so buy shrimp, look at the curvature of the body of the shrimp to know the degree of the approximate good and bad.