Why is grapefruit bitter

The bitterness of grapefruit is usually related to variety characteristics, insufficient maturity, or improper storage, and in rare cases may be caused by pests, diseases, or spoilage. Yuzu contains natural bitter substances such as naringin, and its content is affected by factors such as growth environment and picking time. There is a significant difference in the bitterness level of different varieties of pomelo, for example, the bitterness substance content of Shatian pomelo is usually higher than that of honey pomelo. Immature pomelos have a more bitter taste due to insufficient sugar accumulation and incomplete decomposition of bitter substances. If the storage temperature is below the appropriate level, the damage to the cell structure of grapefruit will accelerate the release of bitter substances. Some pomelos may have abnormal bitterness in their flesh due to improper fertilization or pest infestation during cultivation. Rotten pomelos can produce bitter metabolites due to microbial action, accompanied by softening or off flavors of the flesh. Wild grapefruit varieties typically evolve higher levels of bitter compounds to resist animal predation. Improper selection of rootstock for individual grafted pomelos may lead to increased bitterness in the fruit. Very few people are sensitive to ingredients such as naringin, which can amplify their perception of bitterness. The concentration of bitter substances in the white flesh of grapefruit is relatively high, and consuming it with too many white meridians can also increase the bitterness.

When selecting pomelos, you can observe whether the skin is full and shiny, and if there is elasticity when pressed, it indicates good maturity. It is recommended to store in a cool and ventilated place to avoid low temperature damage caused by refrigeration. Removing all white meridians before consumption can effectively reduce bitterness, and pairing with honey or processed tea can improve taste. If grapefruit shows signs of spoilage such as alcohol odor and mold, it should be immediately stopped from consumption. People who are particularly sensitive to bitterness can choose low bitterness varieties such as rock sugar grapefruit and grapefruit.