You can put it in or not, when the vegetables are half-cooked.
The wine is generally used as raw materials, plus cinnamon, pepper, dashi, sand and other spices processed, usually finished alcohol concentration of 10 ° - 15 °, due to the low alcohol content, there is the nutrition of yellow wine, but also spices, so in the cooking can be very good to play a flavorful, deodorization, deodorization role.
For example, when doing fried dishes, such as fried squid, squid fishy general heavy, fried when the amount of wine can be a little more than 200 grams of squid to put 20 grams of wine, and to wait for the squid down to the pot to be relatively the highest temperature in the pot into the wine, so that it can be very good to let the wine in the alcohol evaporated without affecting the taste of the dish; if you do the burning dishes with the wine is recommended to add water before adding the wine, such as Braised chicken, generally burned before the chicken pieces to be fried first, in the frying can be the first to add wine, which can be very good to the wine in the flavor of wine, but also can be very good to fishy aroma, such as this burned vegetables, due to the relatively long time to burn, plus the amount of wine can be a little more than 200 grams of chicken to join the 30 grams of wine.