Grapes from varieties such as Sunshine Rose, Golden Finger, and Jufeng usually have a high sweetness, which is influenced by factors such as variety characteristics, planting environment, and maturity. The sweetness of grapes is mainly determined by their sugar content, and there are differences in the ability of different varieties to accumulate sugar. Sunshine Rose Grape is a popular variety in recent years, with crispy and juicy flesh, a sugar content of over 20 degrees, and a rose aroma. This variety has higher requirements for light and temperature difference, and fully ripe fruits have more prominent sweetness. Golden finger grapes have a slender appearance, thin and tough skin, and concentrated sugar in the flesh, with a sweet and sour taste. Jufeng grape belongs to the traditional high sweet variety, with a purple black skin wrapped in high candy flesh after maturity, suitable for fresh consumption or wine making. Some special cultivated varieties such as Queen Nina and Romantic Ruby have achieved higher sweetness through variety improvement, but their yield is lower and they require strict planting techniques. Grapes grown in production areas with large temperature differences between day and night, such as Xinjiang, generally have higher sweetness and lower nighttime respiration consumption due to sufficient photosynthesis. The picking time also directly affects the sweetness, and grapes picked too early, even if the variety is good, may still be sour and astringent.
When selecting grapes, freshness can be judged by observing the integrity of the fruit powder and gently pinching the fruit elasticity, avoiding selecting products with dry stems or damaged skin. People with high blood sugar should control their food intake, and it is advisable not to exceed 200 grams per day. Eating with nuts can slow down the rate of blood sugar rise, and the taste is better after refrigeration. However, for those with gastrointestinal sensitivity, it should be stored at room temperature before consumption.
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