Noticing that the kitchen cloths are greasy or slippery is very common. Despite what many may think, it is most likely not soap or grease, but Biofilm.
It is not pleasant to know certain ins and outs of the kitchen, although it is known that it is one of the places in the house that preserves the most bacteria and germs. Cloths have always been a great ally for cleaning countertops, sinks and many other surfaces. However, when it takes on a slippery texture, something else seems to be going on.
Biofilm: accumulation of bacteria
Yes, when a cloth changes texture it is due to the bacteria grouping together to form colonies that produce a kind of mucus to protect themselves (biofilm). It is very difficult to remove, so much so that not even the washing machine can handle them.
These slimy films or clumps are made up of many different types of bacteria bound together into a thick substance. This mucus acts like glue to hold bacteria together and adhere them to a surface. We are used to thinking of bacteria as individual organisms that live independently of one another, but in reality most bacteria live in diverse colonies. This allows the bacteria to form mutually beneficial relationships with each other to gather food and even communicate information about their environment that is important to their survival.
Biofilms are mysterious and complex. The study of biofilms has exploded due to more advanced microscopes and a new awareness of their pervasiveness and impact on the environment. For every negative impact of biofilm, a positive use has been discovered. Although at first glance, it produces more rejection than joy for us.
Does bleach remove it?
Regularly scheduled cleaning (ideally weekly) can keep us free of this Biofilm. Especially if we keep the surfaces free of moisture and residue (food for bacteria). This is the best defense against biofilms. Once established, biofilms are difficult to remove from wipes. Even if the surface appears clean, biofilms can cling to inconspicuous areas.
Studies show that due to their protective matrix, spraying with bleach or another type of antimicrobial, or a shower or toilet bowl cleaner, and then simply rinsing, will not remove them. Antimicrobial chemicals cannot penetrate the biofilm to kill all bacteria. Additionally, antimicrobial chemicals are neutralized by the components of the matrix and the debris it contains.
Like dental plaque, biofilm must be shaken, broken up, and removed before an antimicrobial chemical (in the plaque example, mouthwash) will be effective. This is not a new recommendation for the use of antimicrobials and disinfectants; as they all require that the surface be cleaned and rinsed before applying the disinfectant because the debris interferes with the killing action of the antimicrobial chemicals.
So the fastest and most efficient solution is to throw away the cloths without making an effort to break their biofilm. Experts recommend that microfiber cloths be used, as the fabric reduces the buildup of bacteria.
