Raisin is a kind of food formed by dehydrating grapes with the help of solar heat or artificial heating. The water content is relatively low, which belongs to a kind of high-energy nutrition. Deeply loved and welcomed by people. Mainly distributed in Xinjiang, China, the colors are mainly divided into green and red. Many people think that red raisins can't be eaten, but in fact, whether they are green or red, they both have high nutritional value and edible value, and we can't unilaterally say which is better.
The color of raisins mainly depends on the color of grapes. Green raisins are made of green grapes and red raisins are made of red grapes.
Why do raisins turn from green to red Usually not.
Under normal circumstances, the color of raisins will not change suddenly after they are made, that is to say, green grapes will be made into green raisins and red grapes will be made into red raisins, so there will be no green to red or red to green. If this happens, it is likely that raisins breed bacteria and microorganisms, leading to deterioration.
It is not recommended to eat raisins at this time, otherwise it will easily increase the burden of human gastrointestinal tract, lead to abdominal pain, diarrhea and loose stool, and do harm to human health.
Is it normal for raisins to be too sweet? Generally speaking, the sugar content of raisins is relatively high, because the grapes that make raisins are generally mature and full, and the sugar content is as high as 60%. It is generally normal to eat, but some unscrupulous merchants will add some saccharin to it to make raisins sweeter.
Usually, raisins added with saccharin will be sticky and have obvious food additive flavor. At this time, it is generally recommended to stop eating, so as not to pose a threat to the body.
4 How to identify sulfuric acid raisins Look at grapes that grow naturally in color, there will be some color differences, which will not be very uniform. The color of the raisins is also uneven. If the color of raisins is uniform and beautiful, then most of these raisins belong to sulfuric acid raisins.
There should be a certain gap between the normal dry and wet raisin particles, and they will not stick together as long as they are not wet, while sulfuric acid raisins have a certain adhesion phenomenon.
From a big perspective, many people will deliberately choose large raisins when buying, but in fact, the quality of raisins is not determined by size, but mainly by varieties. When buying raisins, you can choose raisins with uniform head and no impurities.