Does MCT oil go bad?

In this brief guide, we will address the question, “Does MCT oil go bad?” as well as other questions pertaining to the subject at hand like how long does MCT oil take to go bad and how to tell if MCT oil has gone bad. Moreover, we will also discuss how to properly store MCT oil.

Does MCT oil go bad?

Yes, MCT oil does go bad eventually. Food products vary widely in their shelf life and storage conditions. Oils generally have a much longer shelf life than many others because of the nature of their composition. MCT – Medium chain triglycerides, are saturated fats that make stable oil. 

In comparison to unsaturated fats, saturated fats have a longer shelf life. Although they can have harmful effects on your cholesterol levels, the fact that they are more stable is inevitable.

Nevertheless, an opened bottle of MCT oil should be good for a year, while an unopened bottle of MCT oil stays stable for 2 years or more.

Most of the MCT oils come in bottles with labels. On the label, there should be a “best by” date. If you are particular about the taste, the best way to go is by the label. However, the general shelf life period of 1 year (opened) and 2 years (unopened) is there for a rough estimate. 

It must be kept in mind that the “best by” date on the label is not the expiration date, but the date before which your oil is expected to retain maximum flavour and composition. After this date, the MCT oil may start to go rancid – It may not develop moulds and just spoil altogether.

How long does MCT oil take to go bad?

Depending on the storage conditions, MCT oil can last anywhere from 6 months to 2 years. The time mentioned on the label is for top-notch quality. However, if you store MCT oil in ideal conditions and take good precautions regarding the food safety practices, your MCT oil might as well last much longer than that.

It is important to note that rancidity and smell are of prime importance when making such decisions about MCT oil. As far as the safety is concerned, an MCT oil can be safe to consume even after its “best by” date, provided there is no rancid or foul smell in the oil. You can read more about here.

When the best by date has passed, MCT oil might not be as fresh, but it would still be safe to consume. If you are thinking of using it in a dish for its nutritional benefits, then you should consider adding a little bit more. This is because after the “best by” date, its quality gradually starts to decrease and the nutrients may vary from the actual serving size. 

Other FAQs about Oils which you may be interested in.

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How to tell if MCT oil has gone bad?

Like mentioned before, things that are of prime importance are rancidity and foul smell. But there are some other indicators too that will help you identify whether your MCT oil has gone bad or not. These are as under:


Remember, you are the master when it comes to determining if your MCT oil has gone bad or not. Always trust your intuition and instincts. You know better than anyone how long that MCT oil has been sitting in the pantry. If you are unsure, you can always take a whiff and decide if you should go with the oil or not. 

A bad MCT oil will have a very unpleasant, pungent and foul smell. It is much different from the fresh oil which is almost odorless. Similarly, fresh MCT oil does not have a very particular taste. If you notice a strong or unpleasant taste, you should consider the option of discarding it.

Color or clarity

Usually, MCT oils are colorless. This is a simple indicator that will help you distinguish between a good and spoiled MCT oil. Spoilage or contamination can occur from a number of different reasons like improper storage conditions or contamination from other utensils.

If the MCT oil is clean and transparent, it is usually safe to consume. However, do not rely on the clarity/color alone to decide the quality of your oil. Try to identify other indicators as well like smell and consistency.


MCT oils have a very low density, hence, the consistency is thinner as compared to other oils. It is much similar to the consistency of an olive oil. However, spoiled MCT oil will have a thicker consistency. In that case, you should discard the bottle of MCT oil.

How to properly store MCT oil.

Proper storage is the key when it comes to retaining the quality of food products. Always store MCT oil away from sources of direct sunlight. This is because heat and sunlight increase the process of oxidation. 

Having this in mind, you can always go with the option of storing the MCT oil in the refrigerator if you want to add it to your drinks. Remember, heat, sunlight, or moisture increase the process of oxidation and your MCT oil will spoil faster.


In this brief guide we have addressed the question, “Does MCT oil go bad?” as well as other questions pertaining to the subject at hand like how long does MCT oil take to go bad and how to tell if MCT oil has gone bad. Moreover, we have also discussed how to properly store MCT oil.