Bread with fragrance and soft taste is a kind of food that many people like. During the baking process, the color of the bread gradually became golden and exuded fragrance. Where does this fragrance come from?
In fact, this is mainly because the bread has a series of chemical reactions during baking. Among them, the most important thing is Marada's reaction.
The Marada reaction means that when baking, frying, and cooking at high temperatures (generally above 120 ° C), carbohydrates in food react with protein, release some fragrance substances, and change the color of the food.
In addition to the Marada reaction, there is a caramel reaction in the bread. During the baking process, the water on the surface of the food is continuously lost, and the internal water cannot supplement it in time.
Therefore, the starch and sugar contained in the food surface will be divided into various small molecules. There is no shortage of volatile molecules in these substances, thereby volatilizing the fragrance of baking.
You may think that since a series of reactions occur in baking bread, is it that the longer the bread grilled, the more fragrant bread. This is not the case. Acrylamide is generated during bread baking.
It is a chemical substance produced by food during a series of high-temperature production.
Acrylamide is defined as a carcinogenic substance by the international cancer research institution under the World Health Organization. The content of acrylamide in bread and french fries is the highest.
The longer the food is heated and the higher the temperature, the more the amount of acrylamide it produces, and the more unfavorable it is to the human body. Therefore, we should try to choose uniform color bread when eating bread.
Good bread not only needs good taste but also needs to look attractive to evoke the appetite of the buyer. It is recommended to observe the shape of the bread when picking bread.
Good bread shape is full and well -proportioned, and it looks fluffy and soft. However, if its appearance is asymmetric, dry, and slightly burnt, the quality of this bread is not very good. Buyers must carefully distinguish the selection.
Precautions:
1. The bread mentioned here does not include the stuffed bread. The fillings may deteriorate at room temperature and should be eaten as soon as possible.
2. Full slice of hard bread, it is best to put it in a thick paper bag and keep it.
3. The preservation time for bread at room temperature is about two days. You can put a little green leafy vegetable such as celery, cabbage, or lettuce in the fresh-keeping bag. Vegetables can adjust the humidity in the bag to keep the bread fresh.
4. Before eating, you can spray a layer of water mist on the surface, put it in a 150 ° C oven, and bake it for 5-7 minutes. This roasted bread will also be delicious. Of course, this method can only be used once.
