Can You Drink Brown Coconut Water? All You Need To Know.

Green coconut water is healthy for drinking. For some, it’s an alternative to juice because of its lower calorie and sugar content. However, coconut becomes brownish in color with time.

So, that brings us to the question: Can I drink brown coconut water? Yes, you can if the water isn’t sour yet. Also, Brown coconut water is not as refreshing and sweet as green coconut water. So, it can even taste sour or have a vinegary taste in some instances due to fermentation.

However, continue reading as we discuss other relevant information, including the nutritional contents and health benefits of coconut water.

Can You Drink Brown Coconut Water?

Of course, you can. In fact, some prefer drinking it compared to juice because of its low sugar content and calories.

Brown coconuts are often very mature coconuts, and a green coconut stays for about 8 to 12 months before it turns brown. Sometimes, its exposure to the sun causes it to oxidize, thereby turning to a brown color.

Can You Drink Brown Coconut Water

This can also cause some chemical reactions to take place inside the coconut. Hence, it makes the water taste sour and lose its original mild, sugary taste.

Sometimes, the brown coconut water can also taste sour as a result of fermentation. Generally, the water is not as refreshing and sweet as the transparent or white ones.

By the way, if the brown coconut water gets sour, you can’t drink it.

How Long Should Coconut Stay Good Before It Gets Bad?

Unopened coconut water that is stored at room temperature can last for about 9-12 months. Fresh coconut water that is directly obtained from a freshly opened coconut will last for only 1-2 days because it has a short shelf life. Once opened, coconut water will generally last 5-7 days in the refrigerator. 

If you don’t plan to refrigerate your container of coconut water, it’s best to consume it the same day you open it to get the best result and taste. Canned coconut water lasts for at least a few months past the date on the label.

How To Tell If Coconut Water Has Gone Sour?

Here are some ways to tell if coconut water has gone sour:

  • Strong smell: If your coconut water has an unpleasant smell, chances are that it has gone bad. A sour or vinegary smell is a sign that the coconut water has started to ferment.
  • Sour taste: If it tastes sour or off, it has gone bad. Fresh coconut water should have a sweet, fresh, and nutty taste.
  • Carbonation: Once the coconut water is carbonated or fizzy, it has most likely gone bad. Carbonation is a sign that the coconut water has started to ferment. Also, when coconut water becomes carbonated, you may notice small bubbles or foam on the surface of the liquid.
  • Change in appearance: If the color or appearance of the coconut water has changed, it is bad and unhealthy. Fresh coconut water should be clear and transparent. If it has turned cloudy or has a thick consistency, please don’t consume it.

Green Coconut Water Vs. Brown Coconut Water

Below is a comparison between green coconut water and brown coconut water.

Green coconut water

Brown coconut water

Green coconut water is typically sweet and refreshing with a nutty flavor. 

Brown coconut water has a distinctly sour or alcoholic flavor due to fermentation.
Young and not completely ripened. Fully mature.
A coconut contains about 11 ounces (325 ml) of refreshing and sweet water.  Contains a smaller amount of water, about 4 ounces (approximately 120 ml).
Perfect for drinking and more nutritious than brown coconut water. It is not as sweet as green coconut water.
Contains higher levels of potassium. 

Contains lower levels of potassium.

Nutritional Content of Green Coconut Water

Below is the nutritional content of 100 ml of fresh coconut water, represented in a table. 


Amount (Per 100ml)


18 kcal


4.4 grams


0 mg


0 mg




22 mg


184 mg


8 mg


6 mg

Vitamin C

2.5 mg


0.4 mg


184 mg

0 mg

What Are The Consequences Of Drinking Sour Brown Coconut Water?

Drinking sour/spoiled brown coconut water can lead to potential health issues. Brown coconut water is generally safe to drink if it has not gone bad. However, if the water has been exposed to the environment for too long or has fermented, it can become contaminated with harmful bacteria, like E. coli. 

This can cause mild to serious stomach discomfort, inflammation, nausea, diarrhea, vomiting, and other digestive problems. Therefore, it is crucial to check the appearance, smell, and taste of the brown coconut water before consuming it. 

If there are any signs of bubbles, a sour taste, vinegar, or alcoholic flavor, or if it appears to be spoiled, it should be discarded instantly. Ensure the brown coconut water is transparent and has a nutty taste and aroma before consuming it. 

Frequently Asked Questions

Here are some questions people also ask about drinking brown coconut water and the answers to them.

Q: Is brown coconut flesh better than green?

Both are good. Brown coconuts are more mature than green, with less water, and it’s best for making coconut oil and coconut milk. Green coconuts are quite young coconuts with soft flesh and a lot of water. 

Q: Is brown coconut water good for weight loss?

Both brown and green coconut water are good for weight loss. Because coconut water is low in sugar and calories. Coconut water also boosts hydration, which is good for proper and gradual weight loss. 

Final Words

It is possible to drink brown coconut water, but it is not recommended due to the potential health risks associated with it. The fermentation process is because of the presence of bacteria, and this will disturb your stomach. However, coconut water is a nutritious drink that provides several health benefits. 

It is a good source of natural electrolytes, vitamins, and minerals and is low in calories and sugar. However, it’s important to note that coconut water can go bad if not stored properly. Fresh coconut water has a very short shelf life and should be consumed within 1-2 days.


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