Will old coffee make you sick?

In this short article, we will provide an answer to the question “Will old coffee make you sick?”. In addition, we will discuss how long the coffee lasts after brewing. Finally, we will discuss how long you can store ground coffee in your home.

Will old coffee make you sick?

No, old coffee won’t make you sick. However, if this coffee is contaminated and has the production of toxins (ochratoxin – OTA), it can have serious effects on human and animal health.

Thus, drinking coffee beans or ground coffee will not, in the vast majority of cases, put you in any kind of danger of getting sick. Coffee made from stale coffee, on the other hand, will not taste as good as those made from fresh coffee and may even taste stale or unpleasant. There are, however, some notable exceptions to this general rule.

Coffee that has not been stored properly in an airtight container can develop a bitter taste under certain circumstances. There is an issue that should be noted. If your coffee has been in contact with fungi, they may have produced mycotoxins, which are harmful to your health. 

Thus, it is very important to pay attention to the storage of your coffee so that they are not exposed to conditions favorable to the growth of these microorganisms, such as high humidity. And in this case, not even the boiling water of the preparation will be able to eliminate these toxins. 

Before brewing and drinking your coffee, it’s always a good idea to carefully check the container and the beans (or beans) to see if there’s anything foreign to it.

How can I avoid consuming OTA-infected coffee beans?

The most efficient way to prevent OTA contamination in your coffee is to be aware of where your beans come from. Note the farm where they were grown, the processing facility where they were processed and the means of transport that was used to transfer them.

Keep your insistence on only buying coffee beans from companies that do OTA testing. That’s all there is to it.

How long does the coffee last after brewing?

Ideally, coffee should always be consumed within 20 minutes of preparation. After that, it cools down and the oxidation process begins to occur, compromising its properties.

That’s why, usually, in coffee shops, coffee tends to be much tastier. What happens is that each coffee is prepared and served on time. This makes all the difference in their quality and the full flavor experience.

How to store coffee?

To store your coffee you should always keep your coffee beans in a cold and dry place.

Many people keep their coffee beans in a warehouse at room temperature. While this is normal for a short period of time, storing grain at room temperature for an extended period increases grain degradation. In addition, it can assist in the creation conditions for the OTA production.

Do you want coffee that smells and tastes great every time? So just store it right. It’s simpler to ensure your breakfast continues to taste great if you infuse it directly into a thermos carafe, which retains the coffee’s flavor and heat while maintaining the coffee’s consistency. 

Only if you like the taste of burnt coffee should you leave a freshly brewed coffee pot on the stove while you work. In the fridge, freshly brewed coffee is stored for three to four days, allowing you to make iced coffee.

As coffee is a food product, it is mandatory to come with its expiration date. Perhaps the grain you’ve chosen will be degraded before then, but that’s a remote possibility.

How long can you store ground coffee?

Ground coffee can be stored at room temperature for three to five months before use. If it degrades, it will not make you sick; instead, it will just lack the fresh flavor.

However, as they are in solid form, whole grains can be kept for up to 9 months. In coffee beans, aroma compounds are preserved as they are retained within the bean. When grinding, the aromas are released. And so, they get lost to the environment. So, in terms of shelf life, coffee beans will last longer, for about 12 months. 

While ground coffee lasts between three and five months. However, despite these deadlines, this does not mean that coffee cannot be consumed. It just won’t have the same sensory quality, which is the biggest draw in coffee consumption.


In this short article, we provided an answer to the question “Will old coffee make you sick?”. In addition, we discussed how long the coffee lasts after brewing. Finally, we discussed how long you can store ground coffee in your home.



Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.