Coffee Machines Stock Germs, Say Scientists

Coffee machine making an espresso. AFP photo
Coffee machine making an espresso. AFP photo
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Coffee Machines Stock Germs, Say Scientists

Coffee machine making an espresso. AFP photo
Coffee machine making an espresso. AFP photo

Scientists have found that all kinds of pathogens gather in coffee grounds and in used pod machine capsules.

According to the German News Agency (DPA), Fritz Titgemeyer, head of the Food Microbiology Laboratory at the Munster University of Applied Sciences in Germany, said that damp coffee grounds encourage the growth of germs.

If you leave a used coffee pod in the machine for a few days before throwing it out, some mould spores may remain in there and you may be adding them to your next brew.

Titgemeyer noted that a heat-stable poison may have developed, a so-called mycotoxin, and you will not be able to see or taste it.

The water containers and the plastic tubes in coffee machines are also a perfect breeding ground for bacteria if they are not cleaned properly. The expert said that bacteria can settle there in the form of biofilms. All removable components need to be cleaned thoroughly.

Titgemeyer added however disgusting it may be to imagine one's coffee machine full of microorganisms, they do not really pose a health risk.

"The water is heated to 80 degrees Celsius, which kills any germs present in the water tank," he said.

If you use the machine to make cold drinks, however, you may need to worry. Titgemeyer explained that in cold-extracted drinks like iced tea or iced coffee, all germs will remain. The good news is that many coffee machines include a self-cleaning program, but there are also extra things you can do to make sure you keep the germs at bay.



New Observations Show Asteroid Resembling a Spinning Hockey Puck

This composite image of asteroid 2024 YR4 was captured with the Gemini South telescope in Chile. (International Gemini Observatory/NOIRLab/NSF/AURA/M. Zamani via AP)
This composite image of asteroid 2024 YR4 was captured with the Gemini South telescope in Chile. (International Gemini Observatory/NOIRLab/NSF/AURA/M. Zamani via AP)
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New Observations Show Asteroid Resembling a Spinning Hockey Puck

This composite image of asteroid 2024 YR4 was captured with the Gemini South telescope in Chile. (International Gemini Observatory/NOIRLab/NSF/AURA/M. Zamani via AP)
This composite image of asteroid 2024 YR4 was captured with the Gemini South telescope in Chile. (International Gemini Observatory/NOIRLab/NSF/AURA/M. Zamani via AP)

The asteroid that once had a small chance of striking Earth and now might slam into the moon resembles a spinning hockey puck, scientists said Tuesday.
A team of astronomers used the Gemini South Observatory in Chile to observe asteroid 2024 YR4 in multiple wavelengths as it zoomed away from Earth in February, barely 1 1/2 months after its discovery. They created a 3D image of it based on their findings, The Associated Press reported.
The nearly 200 foot (60-meter) asteroid looks more like a flat disk — or not-quite-round hockey puck — than a potato. It also has a rapid rotation rate of about once every 20 minutes.
“This find was rather unexpected since most asteroids are thought to be shaped like potatoes or toy tops rather than flat disks,” the research team lead, Bryce Bolin from Eureka Scientific said in a statement.
Scientists said it most likely originated in the main asteroid belt between Mars and Jupiter, and is rich in silicates.
At one point earlier this year, NASA and the European Space Agency put the odds of the asteroid striking Earth in 2032 at 3%. It's now down to virtually zero for the next century, but there's a 3.8% chance it could strike the moon instead. Even if that happens, NASA assures the moon's orbit will not be altered.
The asteroid —- which swings our way every four years — will be too far away by next week for ground telescopes to see. The Webb Space Telescope will take another look later this month or next.
Scientists consider all this good practice for when a potentially killer asteroid heads our way.