Mold in coffee: is it even a thing?

If you have been following us since the beginning, you probably figured out that we are obsessed with coffee at Vibe Lounge. We have it every morning, and we are always looking for ways to amplify its benefits. It keeps us mentally sharp and who doesn’t love a warm cup of coffee first thing in the morning?

We’ve tried it all: butter and MCT oil, cacao, mushrooms, healthy sweeteners, different kinds of beans, collagen, and all kinds of boosters. Of course, being coffee lovers, we had to learn more about it. We read books, listened to podcasts, and watched documentaries. One thing that kept coming up: mold in coffee. This intrigued us, and we decided to learn more about it.

Keep reading to learn about our findings.

Benefits of coffee

It is well known that, when consumed moderately, coffee has so many benefits for our health.

  • Coffee is a high source of polyphenols

  • It helps us focus

  • It can even improve our sports performance

  • It is full of anti-oxidants

  • Coffee was linked to a longer lifespan

Negative effects of moldy coffee

But what if that cup of coffee was moldy? It could knock you out for the rest of the day! It could even cause brain fog, cravings, and irritability.

Of course, the image we have of mold does not conjure coffee. When we think of mold, it usually reminds us of old food in the refrigerator or the mold you can see on the walls of older houses. Unfortunately, it is not that simple.

In molds, one of the most detrimental elements is mycotoxins. These are toxic compounds which can damage your brain, and even cause disease and death.

Mycotoxins are most likely present in your diet, whether you know about it or not. Foods in which those toxic substances can be found include coffee, barley, wheat, peanuts, dried fruits and even corn!

To quote Ben Greenfield in his book Boundless, ‘You might think that avoiding moldy foods is a no-brainer. But mycotoxins are so prolifically dispersed throughout global agriculture that they are virtually unavoidable in the average modern diet.’


Now what? How can you enjoy your morning cup of coffee while ensuring you get all the benefits and taste from it? We recommended three things.

The first one is buying coffee beans that have been tested for mold. Our favourite one is Good Goddess Coffee Bean no. 1. It is roasted in Toronto and needless to say: tested for mold.

The second one is to grind the coffee beans right before you make it. This will give your coffee the freshest taste possible.

Last one: avoid paper filters. We like to use a French press to avoid the chemicals released by paper filters.

To learn more about mold in coffee, we recommend the following:

Book: Boundless by Ben Greenfield

Documentary: Moldy


Association of Coffee Drinking With Mortality by Genetic Variation in Caffeine Metabolism

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