The Headlines
There have been some pretty unfair headlines in press lately regarding dishwashers. They are surrounding claims that there is research to show that the fungus growing in over 180 dishwashers around the world is harmful to humans. They even go so far as to suggest that it may be fatal in some cases.
I really want to break down these claims to their bare facts and see exactly how much of this is truth and how much is just scare-mongering.
The fungus is question is a black yeast, which is particularly fond of warm, damp environments and the theory is that because this fungus develops in places where high concentrations of soaps and detergents are present, they become less affected by cleaning products over time.
“Luckily they are normally not at all harmful in healthy people”
-Prof. Neil Gow, Aberdeen University
Not wanting to take the papers view of the research at face value (I daresay you’ll understand why), we got in touch with revered microbiologist Professor Neil Gow of Aberdeen University; a leading member of the Aberdeen Fungal Group. He explained to us that “Black yeasts are commonly found in both domestic and public places. They can be seen growing on shower curtains, bathroom tiles, and in many other warm, wet places such as in changing rooms, swimming pools, sauna baths etc.”
“Luckily they are normally not at all harmful in healthy people and our immune systems are very adept at mopping up the few black we come in contact with in day to day life.”
Professor Gow went on to explain that those who succumb to a black yeast infection normally have a medical condition or immunity problem that makes them susceptible to infections from a variety of fungi or microbes that would normally present no problem at all.
Naturally, we want to make you aware that if you have a pre-existing condition and are not sure if it makes you vulnerable to fungal infections, speak to your GP who will be able to advise you further.
It’s also nice to see that not everyone is getting swept up in the mania. The Cystic Fibrosis Trust released a statement on their website.
“We do not really have to worry that danger lurks in our domestic appliances.”
-Cystic Fibrosis Trust
To summarise the research that the news articles were based on, they said “Although it is of interest to see that the conditions in dishwashers favour the growth of these fungi, we do not really have to worry that danger lurks in our domestic appliances.”
Thankfully the general consensus seems to be that despite what the papers have implied, this research certainly does not suggest that our dishwashers are going to harm us any time soon.
Image by Phil Roader