Is the bottom of the grape sweet or the top sweet

The sweetness distribution of grapes is usually slightly higher at the top than at the bottom, but actual differences are influenced by factors such as variety, maturity, and lighting conditions. The sweetness distribution of grapes is closely related to the fruit development process. After flowering, the ovary gradually expands to form fruit grains, and sugar is transported from the stem to the entire fruit through vascular bundles. Due to the distance between the top and the fruit stem, water evaporates relatively faster and the sugar concentration effect is more pronounced. At the same time, the active period of cell division at the top is longer, and the accumulation time of anthocyanins and sugars is more sufficient. The top fruit pulp with more direct sunlight exposure will accelerate the conversion of photosynthetic products, and some varieties such as Jufeng and Sunshine Rose may have a slightly higher sugar content at the top than at the bottom.

In rare cases, the bottom may be sweeter, such as insufficient light at the top due to continuous rainy weather, or delayed ripening of the bottom fruit caused by overly dense fruit clusters. Late maturing varieties may experience low temperatures before harvesting, and the bottom fruits may accumulate more sugar due to the greater temperature difference between day and night. Some cultivation methods, such as ring cutting treatment, can also change the distribution of sweetness by increasing nutrient reflux to the bottom. The slight fermentation at the bottom caused by stacking during transportation and storage may also create a false sense of local sweetness increase, but this is an abnormal situation. When selecting grapes, the distribution of fruit powder and the color of the fruit stem can be observed, and fruits with uniform maturity have less difference in sweetness. It is recommended to refrigerate and consume the whole piece, avoiding squeezing the bottom. People with high blood sugar should control their single intake, with no more than 15 pills per day, and use nuts or yogurt to slow down sugar absorption.