Honey grapefruit tea doesn't need a refrigerator in winter, as long as it doesn't need direct sunlight! No matter what food it is, no matter how long it has been preserved, as long as it has not deteriorated, it is edible and will not cause harm to the body. But the nutritional value of long-term consumption is slightly worse than that of fresh food. There is usually a shelf life. If it has not reached the shelf life, it may be because it is not completely sealed. I suggest you open the lid tightly after use. In addition, it can be stored in the refrigerator, and similar situations will be reduced accordingly. You can use a spoon to remove those white flocs on the surface, and you should be able to continue to use them.