What causes oily coffee in my cup?

[Weeds]

I always buy whole beans, but sometimes when I open the package, they are oily. Other times, they’re totally dry. This goes for all of the different types of coffee that I buy, including flavored. When I brew with oily beans, it creates an oily residue in the coffee, which I hate. Any suggestions?

[Chuggin McCoffee]

I always buy whole beans, but sometimes when I open the package, they are oily. Other times, they’re totally dry. This goes for all of the different types of coffee that I buy, including flavored. When I brew with oily beans, it creates an oily residue in the coffee, which I hate. Any suggestions?

If you are buying flavored coffee more often than not, the beans are oily because they are flavored with flavored oils. This means that a special flavoring oil, like cinnamon, chocolate, raspberry, and the like, will be added to a normal coffee roast, turning the texture from dry to oily. If you notice this only happening when you drink flavored coffee, you may want to switch to cut out the oil altogether.

[Bill]

The oil is also related to the darkness of the coffee roast. Once coffee is darkly roasted, the chemistry of the coffee beans changes so that additional oils are released.

[Denverlady]

True, true. I didn’t know that coffee beans were made up of 15% oils (I read this on another forum),, and the longer they are roasted, the more of the oil is released. Just a quick Q, why do you hate the oil in your coffee? I think it gives it a better richness of flavor. But I’m a dark roast fan myself.

[Weeds]

Yes, this is happening to me most often with flavored coffees. Is there any way around it? Or should I give up flavored altogether? I don’t think that I normally drink dark roasts. I just don’t like any kind of residue in my coffee, not my thing.

[Cheskagraham]

Coffee beans are made up of three basic materials: a fibrous hull that surrounds the actual berries, a mixture of protein and fat, and moisture, sealed into the bean by the hull.