Does Coke Evaporate? (Prevention, Ingredients + More)

You may have noticed a few instances where your can of Coke is lighter than normal or that there is less Coke in your glass after a few minutes without you drinking the Coke.

Due to these instances, you may be wondering if Coke evaporates. I looked up the facts, and here is what I’ve got!

Does Coke Evaporate?

Coke is a soft drink that is prone to evaporation because of Coke’s liquid and carbonation content. If you leave Coke open, you will find that the carbon dioxide in Coke will react with oxygen and partially evaporate. Also, Coke can also evaporate more upon exposure to warm or high temperatures, in which only the sugar in Coke will be left.

If you are eager to know why Coke evaporates and how to prevent Coke from evaporating, keep reading!

Can Coke Evaporate?

Like other carbonated beverages, Coke undergoes the evaporation process after being exposed to the environment.

There are two ways evaporation will occur, and the first is through the loss of the carbon dioxide in Coke, which is responsible for the fizz you feel when you drink Coke.

When the carbonation in Coke reacts with oxygen, the carbon dioxide will turn into gas, and when the carbon dioxide eventually stops reacting to oxygen, the Coke goes flat.

Second, Coke contains a significant amount of water, and water is highly susceptible to evaporation, especially when the air is dry.

Therefore, when the water in your Coke evaporates, the Coke itself will also evaporate.

How To Prevent Coke From Evaporating?

If you are keen on keeping as much carbonation in your Coke as possible and stopping the Coke from evaporating, there are several things you can do.

Firstly, a basic trick you can do is to keep the Coke in a tightly-sealed container to keep air from touching the carbonation and prevent the Coke’s liquid from escaping and becoming gas.

Alternatively, you can seal the Coke in a fizz-keeper pump by using a bottle cover with a pump instead of the Coke bottle’s cap to keep the Coke under constant pressure.

Lastly, keep the Coke in cold temperatures because hot and dry weather further stimulates the evaporation of liquid particles, so storing Coke in the refrigerator is the best bet you have.

Does The Sugar In Coke Evaporate?

Coke can evaporate, and evaporation is the process of vaporization which entails the conversion of liquid to gas. As such, expect that solid particles like sugar won’t be evaporated and instead be left behind.

If you evaporate Coke under high temperatures, you will find that the sugar particles will be burned off with only sugar left since sugar is solid, meaning sugar cannot turn into gas.

At most, only the sugar particles that completely merged with the water molecules will evaporate and most of the sugar will be leftover in the pot after the Coke evaporates.

Does Coke Evaporate Faster Than Water?

Contrary to popular belief, Coke does not evaporate faster than water because water does not contain any excess chemicals to weigh the water down during the evaporation process.

On the other hand, Coke has a few ingredients in its formula that may interfere with the liquid evaporating from the soda. For reference, Coke has sugar and other sweeteners which do not turn into vapor.

Can Coke Evaporate In An Unopened Can?

Can Coke Evaporate In An Unopened Can?

There are two main reasons why your can of Coke already feels half empty even when the Coke is unopened and you have not taken a sip yet.

First, it could be the cause of a manufacturing mistake, meaning the filling production of Coke failed and quality control did not notice the Coke can was underfilled.

Another reason why your unopened Coke could evaporate is because of external damage, so there may be a small hole, dent, etc. on your Coke’s container.

To know if Coke has been damaged, submerge the can in the water. If there are bubbles in one part of the Coca-Cola can, then the Coke is damaged and you can report it to where you bought it.

Does Coke Zero Evaporate?

Coke Zero is another carbonated variant under the Coca-Cola line, and like all other varieties of Coke, Coke Zero is also prone to evaporation.

Additionally, you may find that Coke Zero evaporates faster than a regular Coke, and Coke Zero can even disappear completely unlike regular Coke.

If you boil both Classic Coke and Diet Coke simultaneously in different containers, you will find that the Diet Coke will completely disappear within sixteen minutes.

On the other hand, regular Coca-Cola will evaporate completely only after twenty minutes at maximum temperature. Additionally, regular Coke will also leave around two tablespoons of black goo.

How Long Does A Can Of Coke Take To Go Flat And Evaporate?

Immediately after opening a can of Coke, you will see the Coke is fizzy and bubbly, which is a sign that the carbonation is mixing with oxygen, and therefore part of the Coke is evaporating.

If you keep your Coke inside the fridge, leakage will slow down and the Coke will last for about 2-4 days.

On the other hand, it will take 1-2 days for the Coke to completely evaporate if exposed to room temperature.

Take a look at our related articles to learn if Coke can rot your teeth, if Coke can dehydrate you, and if Coke can remove hair dye.


Coke is a carbonated beverage that can evaporate upon opening and upon exposure to high temperatures. If you boil Coke, only the sugar particles that turn into sticky goo will be left.

To prevent your Coke from evaporating, you can store Coke in cold temperatures instead and keep your Coke in an airtight container or purchase a fizz-keeper pump.

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