As soon as the weather is hot, the food will not be easy to preserve. If the time is a little longer, the food will be easy to change its flavor. Here's a trick: putting some sugar can not only adjust the color, fragrance and taste, but also prolong the preservation time of the dishes.
The sugar, mainly white sugar, that is put in a dish for seasoning. White sugar itself does not have the function of sterilization, but it can regulate the growth of microorganisms.
The main reason is that sugar can reduce the activity of water in vegetables, so that those microorganisms attached to vegetables can not get the necessary water for life and reproduction, or even dehydrate the microbial cells, and then they are in a physiological dry state. Although they are not killed, they also stop the growth activities, so the vegetables are not easy to deteriorate.
Editor's note: when cooking, remember to put sugar first and then add salt. Otherwise, the 'dehydration' effect of salt will prevent sugar from penetrating into the dish, thus affecting the taste of the dish, making it sweet outside and light inside. Many recipes will also tell you which dishes can be added with sugar and list the added components.
Xiaobian verbose: not all dishes are suitable for sugar. Some dishes are not suitable for sugar, such as stir fried broccoli, mustard, and Holland beans. The thick taste of sugar will cover up the fragrance of these dishes.