Generally there is no bitter flavor, cooking method should pay attention to, blanching time not too old. When mixing the sauce, you should taste the flavor, sometimes there is just a strange bitter taste, to match well.
Solution:
You can boil in boiling water in advance, remove the blood foam and so on, and then cook the seasoning do not put, especially onion leaves can not put, onion leaves is bitter, to put must put onion whites, other seasonings such as peppercorns, soy sauce and wine put too much, some will be bitter, can be neutralized by other seasonings, such as ginger, chili pepper, depending on your tastes, and the other. It is recommended that you can put less sugar, so that the meat is tender and easy to cook, and the taste will be sweeter.
How to pick mutton:
First of all, fresh mutton must feel sticky to the touch, which is freshly slaughtered meat, and sticky mutton texture would indicate that this mutton has not been hit with water or not fresh. Consumers can try to buy lamb when you touch it with your hands, or carry a small strip of paper, can be pasted onto the lamb, if it does not fall off, it means that the lamb is relatively fresh.
Secondly, fresh lamb after cutting into thick slices, can "stand" up, because fresh lamb meat is solid and elastic. If it is not fresh lamb will be flaccid "can not stand".
Once again, want to buy lamb with bone, we must observe the thickness of the sheep bone, if it is relatively thin, it shows that the age of the sheep is relatively small, and in the meat is more tender, taste better.