Quat Binding – Why this Can Have a Disastrous Impact on Your Sanitation Program.

In June, I had the opportunity to represent FoodHandler and speak on food safety behavior for customers of Martin Bros. Distributing in Waterloo, Iowa.  One of the questions that was asked caught me a little off guard. The question was about quat binding.  It caught me off guard not because it was a bad question, but only because it was not something I had previously been asked nor had not yet been exposed to the phenomenon. However, I soon learned that in certain jurisdictions, it is resulting in changes to how sanitizing cloths are to be stored in sanitizing buckets (or not) in the foodservice industry. When I returned home from the trip, I had to dig into it to learn about what quat binding is and how it might impact foodservice operations.

I am sure no one reading this will dispute the importance of maintaining proper sanitation and how it is critical to ensure the safety and well-being of our guests and our employees. A common sanitizer used in many foodservice operations are quaternary ammonium compounds (quats). Quat binding occurs when the active ingredient, quaternary ammonium chloride, binds to and is ultimately absorbed into the cloth used to clean a surface. This occurs because quats are positively charged ions and cotton and other natural textiles that we commonly use in foodservice operations are negatively charged.  If you think back to your high school science class, you might remember that positive attracts negative – think of a magnet, turned the right way, two magnets are attracted to each other, turn one around and they seemly repel each other.


Quat binding occurs when the active ingredient, quaternary ammonium chloride, binds to and is ultimately absorbed into the cloth used to clean a surface.


When quats bind to surfaces, their availability as antimicrobial agents decreases, making them less effective in killing pathogens. This can result in inadequate sanitation and increases the risk of foodborne illnesses. One study that explored quat binding in the healthcare setting found that allowing a cotton cloth to remain in a quat solution can reduce the concentration by almost half.  Other data has noted that this binding starts almost immediately and can reduce the efficacy of the sanitizing solution by half within as little as 5 minutes.

The risks associated with quat binding cannot be overlooked. Understanding these risks and implementing proper mitigation measures are essential to safeguard food safety and protect consumers from potential health hazards. Regular monitoring of quat concentrations is crucial to ensure that the disinfectant levels remain within the recommended range. Supervisors and managers should also revisit standard operating procedures and determine what would be the best way to store the sanitizer cloths in between uses. The practice of storing the cloth in the solution, which has been standard practice for many operations, may warrant review with your team and your health inspector.

Late in June, we released the second quarter SafeBites webinar, entitled 2022 Year in Review: What We Can Learn From Foodborne Outbreaks. Check it out to learn about the major outbreaks from 2022 and what you can learn from them to protect your business!  Risk Nothing. 

Emergency Preparedness: The Not-so Calm After the Storm

If you and your foodservice operation have been hit by an emergency or other disaster, what comes next and how do you move forward? Much of the answer to this is predicated on the actual disaster that you are dealing with – a flood is certainly a much different than a fire, but some of the food safety considerations remain the same if your business has been left intact and has not been damaged by the disaster.

Emergency Preparedness and Responding to a Disaster with Food Safety in Mind

As I write the first blog this month, the realities of the devastation in Florida are coming to light as we also deal with the aftermath of Hurricane Fiona, which impacted Puerto Rico late in September. Recent news has been focused on the recovery efforts for all who have been impacted. Thus, I thought it would be fitting this month to discuss emergency disaster planning resources in our first blog and delve into recovering from a disaster in our second blog later this month.

Welcome to National Food Safety Education Month!

In September of each year, we not only have the opportunity to celebrate Labor Day, but we also welcome National Food Safety Education Month! It is this time of the year when it is important to remember that Foodborne illnesses are still a major concern in the United States, although I am guessing many Americans don’t think about the safety of the food they eat as they go throughout their daily lives.  The statistics show one in every six Americans will suffer from a foodborne illness each year, for a total of about 48 million cases each year.