Do sodas go bad? (+5 cons)

In this article, we will answer the question “Do sodas go bad?”, and how to tell if soda has gone bad?

Do sodas go bad?

No, soda does not go bad. Sodas do not come with an expiry date. They are labeled with a best-by date instead. Past the Best-by date, the soda will lose its carbonation and fizz. It is not unsafe for consumption but it no longer complies with the quality standards.

How to tell If soda is bad?


Soda can’t be enjoyed without the fizz. With the gas gone, soda is no more dun with a flat and oversweet taste. Though it is not unsafe, you can discard such soda for quality reasons.


Take a sip of the soda. If the soda does not taste up to the mark, discard it right away. This usually happens if the soda has been sitting for too long in storage or kept in bad storage conditions. Soda loses its crispiness over time.


Pour some soda into a clean and clear glass. In case of visible discolorations, soda should be discarded. 

Condition of the bottle or can 

In case of the rusting, bulging, leaking, or denting of the bottles or cans, discard the soda for safety purposes.

How to store soda?

The following storage practices should be adopted for the proper storage of sodas.

Store away from heat 

The carbon dioxide dissolves in the soda better at low temperatures. High temperatures will force the carbon dioxide to escape, hence, leaving the soda with a flat and sugary taste. Therefore, keep the cans or bottles of soda refrigerated to retain the crispiness and fizz.

Seal it

Seal the bottle or can immediately after pouring the drink. In the case of cans, use aluminum foil to seal them. Rubber bands can be used to secure the foil in place.

Squeeze it

Squeezing the bottle will reduce the volume and hence will prevent the gas from escaping. The gas will be compelled to remain in the bottle and contribute to the fizz.

Transfer to smaller bottles

Transferring the half-finished bottle of soda to a smaller bottle will keep the gas from leaving the bottle. Even if the bottle is full, transferring the soda to smaller bottles will reduce the volume of the gas that will prevent it from escaping.

Place it upside down

When the bottle or can of soda is opened, the carbon dioxide quickly moves to the top of the bottle to escape. If you keep the can or bottle upside down, the gas will be compelled to dissolve back into the soda. This helps preserve the carbonation of the soda for longer.

How long do soft drinks last?

As long as the bottle or can is unopened, sodas will last months past their sell-by or best-by date. For peak quality, it is best to consume the soda immediately after opening. It will, however, retain its fizz for 3-4 days in the fridge if stored properly.

The following table shows an estimate of the shelf-life of soda under different storage conditions.

In the pantryIn the fridge 
Soda (unopened)6-9 months past the Best-by date6-9 months past the Best-by date 
Soda (opened)2-4 days 

Reasons why soda drinks are unhealthy

Make you gain weight 

Drinking sugar-sweetened beverages including sodas lead to weight gain due to large amounts of added sugars. The added sugar is present in the form of table sucrose or fructose. Fructose does not lower ghrelin, the hunger hormone. It does not make you feel full.

Sugar is deposited as fat in your liver

Sodas contain large amounts of fructose. Unlike glucose, fructose is only digested by your liver. In presence of too much fructose, the liver turns it into fat that deposits on the liver. While some of it is converted into triglycerides released into the blood. Excessive intake of sodas can lead to non-alcoholic fatty liver disease.

Fat belly accumulation increases

The high sugar content of sodas is the prime suspect of an increased visceral or belly fat. Belly fat increases the risk of type-2 diabetes and heart diseases.

Sodas cause insulin resistance 

Drinking sugary sodas will make your liver make more and more insulin to cope with the excess sugar. This leads to an insulin spike in the blood. This condition, if continued over a long period of time, leads to insulin resistance which forms the basis for metabolic syndrome and type 2 diabetes.

Poor nutritional profile

Sodas only add sugar to your diet. They have zero vitamins, minerals,s or fiber.


In this article, we answered the question “Do sodas go bad?”, and how to tell if soda has gone bad?

If you’ve enjoyed ”Do sodas go bad?”, take a look at ”Can kool-aid go bad?” too.


Hello, I'm Sana Ameer. I'm a student of Food Science and Technology at UVAS. I like to bake and I aspire to become a Food blogger.