Watermelon can be eaten if it is not spoiled overnight.
Watermelon can be eaten, mainly depends on whether the deterioration, if the deterioration of the watermelon even if not overnight can not be eaten, overnight unaltered watermelon is edible.
Watermelon to water-based, water up to 93.3%, containing high sugar, up to 5.8%, if the room temperature between 23 ℃ ~ 33 ℃, by bacteria, mold and other germs contamination, germs will be in the watermelon reproduction, with the prolongation of time, the amount of germs to increase, increased to a certain extent will be detrimental to human health, should be avoided.
If the watermelon will be covered with plastic wrap or placed in a closed plastic box, promptly placed in the refrigerator in good health, the temperature is generally below 10 degrees, even if there is a small amount of germs attached to the low temperature is not conducive to the growth of germs, overnight will not cause deterioration, can be consumed. However, before eating, you must carefully check the quality of watermelon, if you find any abnormalities can not be eaten.