Ice Machines, Beverage Dispensers & Other Overlooked Food Safety Hazards
At the end of the spring semester in our campus food production lab, we’re fortunate to have the opportunity to hit pause and reset for the summer and prepare for fall—a luxury many foodservice operations don’t often get. During this time, we can deep clean, shut down equipment, and perform a thorough reset of the space. While some school foodservice programs may also have this seasonal window, many commercial kitchens operate year-round and rarely have the chance to step back in this way.
Among the many pieces of equipment that we focus on cleaning during this time are the ice machine and soda dispensers. We clean them throughout the year, too, but they are pieces of equipment that are sometimes neglected. I can see why some may forget about them. In food safety training, much attention is paid to keeping food at safe temperatures, avoiding cross-contamination, and ensuring hand hygiene. While the spotlight is often on cooking and holding procedures, some food safety hazards are hiding in plain sight: ice machines, beverage dispensers, and other equipment that’s easy to forget during daily cleaning routines.
Ice is considered a food under FDA guidelines, which means it must be handled and stored with the same care as any other consumable. Yet, ice machines are notorious for harboring mold, slime, and bacteria, often due to irregular cleaning and maintenance. Ice scoops left on top of the machine, hands reaching into bins, or contaminated utensils can all introduce pathogens. When was the last time you inspected the water line to your ice machine – or even more importantly, the filter? Just as with any surface, if they are not cleaned and sanitized regularly, the risk of contamination only grows.
In foodservice operations, ice is an important component of the service and production processes. It is used for both beverages and for cooling of food. Thus, it is important to be diligent in cleaning and monitoring ice machines.
…Food safety isn’t just keeping hot foods hot and cold foods cold; it’s about the unseen risks that accumulate over time.
Soda fountains and beverage dispensers can also be a hidden hazard. Sugary syrups and low-acid liquids provide a perfect breeding ground for bacteria and yeast, especially in and around the nozzles and drip trays. These areas often go unnoticed in daily cleaning routines and can develop biofilms—thin layers of microbial growth that are hard to remove and can contaminate drinks. In most cases, the trays themselves are dark in color, often black, meaning spotting these biofilms is not easy to do visually.
Another issue arises with the internal tubing of beverage systems. Without proper flushing and sanitization, residue can build up, leading to off-flavors and microbial risks. In both commercial and institutional settings, ensuring that staff are trained to clean these systems according to the manufacturer’s specifications is essential.
Beyond ice and beverages, there are many overlooked surfaces that require consistent attention. Refrigerator gaskets can collect food particles and condensation, creating a moist, dark environment where mold and bacteria thrive. Handles of reach-in coolers, microwave buttons, and faucet levers are frequently touched but seldom cleaned with the same rigor as food prep surfaces.
Food safety isn’t just keeping hot foods hot and cold foods cold; it’s about the unseen risks that accumulate over time. By creating comprehensive cleaning schedules that include non-obvious equipment and surfaces, and by regularly training staff on the “why” behind those practices, foodservice operations can protect both their customers and their reputations. After all, preventing illness doesn’t just happen on the line—it happens behind the ice machine, under the soda fountain, and everywhere in between. Risk Nothing.
READ MORE POSTS
Person in Charge has Major Role Related to Employee Health
In the last blog, we talked about the importance of having healthy employees working in a foodservice operation and how that is related to foodborne illness. In this blog, we discuss employee health controls, one of five key public health interventions needed to control for risk factors of foodborne illness. The purpose of this control is to minimize the possibility that employees contaminate food. That means that employees need to be healthy, and that they report any symptoms or illnesses that might impact the safety of food served to customers.
Healthy Employees Keep Food Safe
Last month we talked about norovirus, the leading cause of foodborne illness outbreaks. Today we will turn our attention to overall employee health, and its role in keeping food safe. Many of you who are in my generation can relate to the fact that you rarely called in to work sick, and when you did you probably couldn’t get out of bed. You may also relate to being a manager and discouraging people from calling in sick because it was so difficult to be short-handed. Well, that mind set just has to change for the health of everyone!
Be Prepared—Norovirus Clean-Up Procedures
We are used to daily cleaning and sanitizing procedures, but norovirus clean-up is very different so it is important to be prepared. You should use these procedures if a norovirus outbreak occurs in your operation or if there is any vomiting event. You might be asking how do you know that norovirus was the cause of a vomiting incident. Well, at the time it occurs you won’t know. So the appropriate action is to assume that all vomiting may be caused by norovirus and clean it up as if it were. It is always better to err on the side of caution.
