Mold in coffee: facts, myths and how to avoid it (2023)

The last thing you want to think about iscan i have moldCup of coffee?We often praise coffee for benefits; is a great source of antioxidants and is potentialAntiphlogistikum.

However, the fungus toxins have become a problem for many consumers. Drinking coffee generally shouldn't make your health worse, but the levels of mycotoxins (fungal toxins) in your coffee can do some damage.

Is there really mofo no coffee?Mold can develop on coffee beans; However, mold itself is not as harmful as its by-products: mycotoxins. They are not only found in coffee beans, but also in grains, nuts, dried fruits and spices.

The Food and Drug Administration warns against this.mycotoxincan cause health problems such as neurological impairment, liver damage, kidney damage or heart failure.

But let's be clear: mold levels in coffee will almost never be high enough to cause major damage. It's a myth that most coffee is full of harmful mold spores.

Let's analyze the facts.

table of contents

Why is there mold in coffee?

What is mold in coffee?

Health risks of drinking moldy coffee

How to prevent coffee mold

Get rid of coffee mold

drink better coffee

table of contents

Why is there mold in coffee?

What is mold in coffee?

Health risks of drinking moldy coffee

How to prevent coffee mold

Get rid of coffee mold

drink better coffee

Why is there mold in coffee?

Mold spores are very difficult to track, so it's difficult to pinpoint exactly where they enter the coffee. While there are many ways mold can grow, that doesn't mean it's always the case.

Several factors contribute to moldy coffee:

  • Climate:Mold tends to grow in warm, humid conditions. Sincebean beltis predominantly tropical, coffee is at risk of mold right from the start.
  • acid:Mold doesn't mind a high pH and can thrive in places that bacteria tend to avoid. (low acidityCoffee can be an excellent alternative.)
  • Growing conditions:Mold can be present in the soil where coffee beans are grown.
  • processing:Mold can grow on green coffee beans if they are wet processed and not dried properly. You can thrive with green coffee beans that are processed dry because the bean stays in its outer layers moist longer. Mold can also develop during the fermentation process.
  • Storage time:The longer grains are stored, the more likely they are to become moldy.

But mold doesn't survive the roasting process, does it? In fact, roasting can helpGet rid offof mold, but without completely eradicating it. If toaster ovens are not cleaned properly and regularly, mold can get in.roasted coffeeand then she made coffee.

Is coffee mold harmful?According to a not so harmfulStudy 2015. However, high levels of exposure over a long period of time can cause serious health problems.

What is mold in coffee?

Mold in coffee usually contains themycotoxinOcratoxina AYAflatoxina B1.

Mold is a multicellular fungus. Like any other fungus, it is known for its role in decomposition. So beware of mold - mold indicates decay by rot. Fungal metabolites (results of fungal metabolic processes) are called mycotoxins.

There are several hundred types of mycotoxins. Only a handful are harmful to humans when ingested. These include fumonisin, patulin, zearalenone, ochratoxin A and aflatoxin B1.

The two most notorious mycotoxins found in food are ochratoxin A and aflatoxin B1, both produced by a specific species of mold, Aspergillus. Both are considered carcinogenic.

Ochratoxin A (OTA) has been implicatedkidney damage, suppression of the immune system andliver cancer.

HeWorld Health Organizationconsiders aflatoxin B1 to be one of the most toxic food toxins. It has been linked to liver cancer and DNA damage.

What is the name of the coffee mold?Coffee mold is simply called coffee mold. When people talk about specific harmful coffee molds, they are usually referring to the mycotoxins produced by the mold.

Health risks of drinking moldy coffee

TL;DR: Exposure to small amounts of mold in coffee is common and not associated with significant health risks. But drinking coffee with significant levels of mold can cause it.secundary effects.

The long-term risks of mycotoxins have been identified. However, ingesting coffee mold can cause some potential short-term symptoms.

What happens if you drink moldy coffee?Drinking moldy coffee is unlikely to do much harm. It is not uncommon to consumesmall amounts of moldin food However, ingestion of mold can produce a short-term reaction that usually disappears within 24 to 36 hours.

For starters, the taste would probably be different. Coffee wouldn't have lifeflavorswhat you want from a cold beer. It may taste earthy or musty.

Flavors aside, sometimes consuming mold can lead to side effects like:

  • stomachache
  • fatigue
  • Headache
  • Mental confusion
  • Breathing problems (coughing, sneezing, runny nose)

While it's good to know about these potential symptoms, it's also important to know that you may not have any symptoms at all. OneEstude 2021 See Morepoints out that OTA levels in coffee are very low risk.

How to prevent coffee mold

Traces of coffee mold are difficult to avoid. However, there are a few ways to increase your chances of getting mold-free coffee.

To prevent coffee mold:

  • Buy high quality organic coffee beans
  • Clean your coffee maker regularly and disinfect it frequently, especially if you notice signs of mold growth.
  • Store coffee beans or coffee grounds properly
  • Visually inspect coffee before brewing
  • Drink regular coffee instead of decaf (caffeine is a natural mold repellent)
  • Be careful with coffee and instant coffee blends (cheap coffees are more likely to contain mold)
  • Look for a lab certification on the label

How to make coffee without mold?To make mold-free coffee, buy the highest quality coffee, store it carefully, and brew it before the purchase date. Some coffee brands offer mycotoxin-free coffee, which may be worth looking into.

Coffee mold may be more common than we'd like to believe. Onelearnshowed that 45% of commercial coffee beans contain OTA. This sobering study may have us keeping an eye on our morning cup of tea.

Get rid of coffee mold

You know coffee beans have developed mold when they have a layer of white fuzz on them. It can also detect mold if the coffee beans have different textures, odors or flavors. It is worth noting that mold growth is not always detectable.

If your coffee is moldy, it's best to throw it away. However, if youIn realityIf you want to save on beans, there's a way.

What is the best way to remove mold from coffee?

  1. Rinse moldy coffee beans under cold water.
  2. Use a dull knife to cut away the unwashed mold.
  3. Fill an airtight container with 2 parts water and 1 part vinegar.
  4. Pour the beans into the solution, cover the container and wait 30 minutes while the vinegar gel is released from the coffee.
  5. Drain the solution and rinse the beans again in cold water.

While this process will help remove mold from coffee beans, it is not necessarily foolproof to remove all mold. Vinegar can also change the taste of coffee.

drink better coffee

One of the best ways to ensure there are few or no mycotoxins is to buy high quality coffee beans. Organic coffee without pesticides is the best. Also look for brands whose coffee beans were grown at high altitudes, as this means a drier climate.

The Golden Ratio is the best personification of coffee. Ignore the mildew, bitterness, and acidity of the other types and try it.golden coffeeHello!


  1. Assessing the food safety risk of ochratoxin A in coffee: a toxicology-based approach to food safety planning - Heintz - - Journal of Food Science - Wiley Online Library
  2. Influence of roasting conditions on the reduction of ochratoxin a in coffee
  3. Analysis of mycotoxins in coffee and risk assessment in Spanish adolescents and adults
  4. Ochratoxin A and the risk to human health: a review of the evidence
  5. Ochratoxin A: general description | ScienceDirect Themes
  6. Occurrence of ochratoxin A in coffee
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