How to dry oily coffee beans?

In this brief article, we will answer the question, “How to dry oily coffee beans?” and methods to use oily coffee beans.

How to dry oily coffee beans?

You cannot dry oily coffee beans but you can use certain preventive measures to prevent them from turning oily or certain techniques to deal with oily beans which are given below.

  • Avoid washing oily coffee beans as you would be left with a flavorless coffee if you use those washed beans in your coffee.
  • Store coffee beans in an airtight sealed container. If at all your coffee beans have turned oily then you can use a burr grinder to grind the coffee. 
  • Avoid using the coffee beans in semi-automatic or super-automatic coffee machines. The oils can create a mess in your appliance and the functionality of the appliance can reduce.
  • If you wish to prepare an espresso, you can use a medium-roasted coffee. If you plan on using a dark roast coffee, then assess the level of oiliness in the coffee beans before using them.
  • If you have an excess amount of oily coffee beans, using them all together can lead to stale coffee as an end result. You can combine the oily coffee beans with the fresher coffee beans to balance this out.
  • Avoid storing the coffee beans in a freezer as they can absorb strong odors. If you wish to place the coffee beans in the freezer, then do not place them besides heavily odored foods.
  • Avoid buying coffee beans that are flavored. These coffee beans are of cheaper quality and the flavoring oils used can make the coffee beans turn oily quickly.

If you love using flavored coffee beans, watch out for coffee beans that contain artificial flavors.

Why do coffee beans become oily?

The sugar present in the coffee beans is responsible for the flavor of the coffee beans. Depending on the flavor of the coffee that is desired, the roasters can roast the coffee to light, medium, or a dark roast.

In the case of a darker roast, the lipids present in the coffee beans come to the surface of the beans. It appears sticky and basically makes the coffee beans oily. 

All coffee beans contain oil but the roasting process is the main determinant of whether the coffee beans have to be oily or not. In the case of light or medium roast coffee, there is not much oiliness seen. 

If though you keep the light or medium roast coffee at room temperature for long, the oxidation process would begin. This would cause the oil present in the light or medium roast coffee beans to interact with air and they can start turning oily too.

In the case of flavored coffee beans, they are over-roasted. Over roasting the beans helps in hiding any faults or defects in the taste of these beans. Over roasting could also be done to provide a nutty or caramelized feel to the coffee beans. 

After the roasting process is over, oil is added along with flavorings in the last step giving you oily beans.

In some cases, over roasting or a long roasting process can make the coffee beans unstable. The coffee beans in contact with air begin the oxidation process and become oilier. More contact with air can further lead to the development of stale coffee beans.

Are oily coffee beans bad?

No, oily coffee beans are not necessarily bad. The quality of roasting and the quality of the beans determine whether they are good to use.

Some coffee drinkers prefer oilier coffee beans to prepare an espresso. The oiliness is also something you should watch out for when you buy darkly roasted coffee. Oiliness is an indication that the coffee beans have been roasted freshly.

If the darkly roasted coffee does not appear oily, avoid purchasing it as it is probably stale. With that being said, the medium or lightly roasted coffee beans should not appear oily.

Other FAQs on coffee beans that you might be interested in.

How to use oily coffee beans?

You can grind the oily coffee beans and then use them as compost for your plants or your garden. This will help in improving the soil’s quality and water quality.

You can use the oily coffee beans to scrub your kitchen tiles and remove nasty stains. Mix the oily grounded coffee beans along with soap and water to remove those stains.

If you have an excess amount of ants present in the kitchen or in your home, you can use your oily coffee grounds to get rid of them!


In this brief article, we have answered the question, “How to dry oily coffee beans?” and methods to use oily coffee beans.