Coconut water will go bad.

Generally speaking, fresh coconuts taste fragrant and refreshing. If the coconut water tastes sour and bitter, the coconut water is very turbid, and the pulp is yellow, it means that the coconut has gone bad and should not be eaten anymore. Continue to eat it. It will damage our health.

Note: Opened coconut milk and coconut meat go bad very easily, so it is best to drink the opened coconut as soon as possible.

Extended information:

Coconut water preservation method:

Coconut water is sterile in the coconut fruit. It is unstable after the shell is opened and is easily contaminated by microorganisms. Fermentation or discoloration due to the action of enzymes reduces the sensory quality and nutritional value of coconut water. The most effective way to preserve it is to preserve it in the coconut fruit itself.

Research shows that fresh coconut fruit can be stored at room temperature for 5 to 10 days. At 12°C, it can be stored for 28 days after being wrapped with PE film, and for 30 days after being wrapped with PVC film. Paraffin-coated film packaging, with a shelf life of 49 days. If it can be controlled at a low temperature of 2.5°C and a relative humidity of 45%-55%, mature coconuts can be stored for 2 years.

Low temperature is more conducive to the storage of coconut water; at the same storage temperature, there is no difference between sealed and unsealed storage times. It can be stored at 37℃ for 5 hours, at 24℃ for 8 hours, and at 14℃ for 22 hours. Can be stored at 4℃ for 7 days.

Reference: Baidu Encyclopedia - Coconut Water