Why Cooling Foods Correctly Isn’t Something to Chill Out Over

Twenty-eight years ago last month, Kevin began his career in the foodservice industry.  He started as an assistant prep cook in an independent owned restaurant in Iowa.  Like many of you, he remembers his first few days just like it was yesterday.  Having never stepped foot in a commercial kitchen, it was a whirlwind of learning.  He was trained to do so many “new” things in those first few weeks, dishing up salads, cleaning and peeling ridiculous amounts of carrots and onions, closely following recipes to make steam-jacketed kettles full of chili, spaghetti sauce, or any one of a variety of homemade soups.  He also faintly recalls the discussion of cooling those soups, which were cooked in bulk, cooled, and re-heated in smaller batches for service over the course of a few days. Back then, the discussion went something like this, “after cooking, we put the [insert name of soup or sauce here] into these two-gallon storage containers and place it in the cooler as quickly as possible.  We never put the lid on, we leave it askew so we can let heat out.  About an hour or so later, we can put the lid on and label it.”

Back then, that conversation made perfect sense.  Kevin grew up participating in Foods and Nutrition projects in 4-H, so he was aware of the basics of food safety.  Flash forward about 5½ years to the spring of 1997 when he was a freshman in Dr. Cathy Strohbehn’s HRI 293, Hospitality Sanitation course at Iowa State University (in which he earned an A, by the way!😁). This was his first indication that perhaps the practices used at the restaurant were not as foolproof as he once thought they might be.

… improper cooling practices contributed to 504 outbreaks associated with restaurants or delis.

-Centers for Disease Control and Prevention

Flash forward another 20 years, and Kevin was at Kansas State University and working with a very talented team of researchers to complete a cooling study as part of the Center for Food Safety in Child Nutrition Programs (which include the National School Lunch and Breakfast Programs).  Their focus was to replicate practices observed in school nutrition operations, which were not necessarily best practices.  [If you need some reading material to put you to sleep at night, we will post the publications that resulted from these studies at the end of the blog for this month. 😂]  As many of you likely know, the Food Code requires hot, temperature controlled for safety foods be lowered from a temperature above 135°F to below 70°F in two hours, and then reach below 41°F within a combined total of six hours. The researchers used various cooling methods and products and learned very quickly that even reducing food hot-off-the-stove to a 2” depth and placing it directly in the cooler was not going to be sufficient to meet the FDA Food Fode requirements. One of the methods tested was to place a 128oz Rapi-Kool™ into a stock pot of chili.  This is NOT the proper way to use a Rapi-Kool™, but it was done to replicate a cook who may be anxious to go home at the end of their shift and simply placed the Rapi-Kool™ in the pot of chili and went home, assuming that it would cool the chili properly.  While the researchers didn’t necessarily think it would meet the FDA requirements, it took an astonishing 24+ hours to cool!  In defense of the Rapi-Kool, that product works great in an active cooling scenario (in which the cool stick is agitated or used to stir the product periodically through the cooling cycle), but again, they are not designed as a passive cooling device.

Many operators may be reading this and wondering if cooling is really that big of an issue with regards to foodborne illness outbreaks.  The Centers for Disease Control and Prevention notes that between 1998 and 2008, improper cooling practices contributed to 504 outbreaks associated with restaurants or delis.  An article in Science Daily back in 2000 even noted that improper cooling is thought to be the top cause of foodborne illnesses in the United States. Improper cooling continues to stay on the list of the top five reasons why foodborne illnesses occur.

Have the cooling practices used in your operation been given a thorough review? Do employees know the correct way to cool products that ensures there is no temperature abuse?  Join us for our November webinar, Chill Out! Implementing Safe Food Cooling Practices with Dr. Paola Paez, Kevin’s colleague from the Center for Food Safety Research at Kansas State University, and learn a few strategies to implement correct cooling practices in your foodservice. Cooling food properly isn’t something that should be taken for granted and simply chill out over.  It also isn’t something that requires a large investment, except in knowledge.  Know that your cooling practices work for your business. Risk Nothing.

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Beardall, L., Paez, P., Phebus, R. K., Watkins, T., & Gragg, S. E. (2019). Control of surrogate Escherichia coli populations in three food products using common food service cooling methods. Food Protection Trends39(3), 200-211.

Olds, D. A., Roberts, K. R., Sauer, K. L., Sneed, J., & Shanklin, C. W. (2013). Efficacy of cooling beef taco meat and steamed rice in United States school foodservice operations. Food and Nutrition Sciences4(7), 735-740.

Phebus, R. K., Watkins, T., & Gragg, S. E. (2019). Control of Bacillus cereus populations in brown rice by use of common foodservice cooling methods. Food Protection Trends39(2), 145-153.

Roberts, K. R., Olds, D. A., Shanklin, C., Sauer, K., & Sneed, J. (2013). Cooling of foods in retail foodservice operations. Food Protection Trends33(1), 27-31.

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Getting Started with Building the Infrastructure

Hopefully in our first January blog, we convinced you of the importance of establishing an infrastructure within your operation to support a safe food culture. So, how does one go about doing this? Well, like any major project, break it into small bites. In our opinion, having a written guide for employees that documents expectations related to food safety basics of employee health and hygiene, temperature controls, and cleaning and sanitizing is the first step. Having this documentation serves as a reference for training and helps fulfill the mission of most foodservice operators which is to serve safe, quality food.

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Food Safety Resolutions for the New Year

Finally, 2020 is in our rearview mirror and we can all turn the page to 2021! Resolutions for the new year might be more of the same from prior years (lose weight, exercise more, less screen time, etc.) OR you may have identified new practices to implement in your operation. If the latter, likely goals included some practices related to food safety – especially given the turmoil of 2020 and heightened concern by customers. It is our philosophy that attention to safe food handling practices is a win-win for any operation because of the direct relationship between food safety and food quality, which in turn leads to customer satisfaction. This past year has also demonstrated that attention to safety can affect the bottom line. Thus, the topic of our first SafeBites webinar for 2021 is on the topic of the return on investment of food safety, it is scheduled for January 20, so register now and please plan to attend.

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To Toss or Not to Toss? That is the question.

Our first blog for the month emphasized the basic safe food practices needed to keep you and your guests healthy (and happy!), especially during these times of COVID. The impact of foodborne illness can range from an uncomfortable few days to hospitalization or death. Foodborne illness IS preventable and the steps taken to keep food safe also maintain quality of food, and ultimately profitability. Think of attention to food safety as part of quality control and a win-win business strategy. Knowledge about food safety can be helpful when controlling costs as making wise decisions when determining the fate of unserved food can affect the bottom line.

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Holiday Food Safety Controls

In case you have not noticed - the holidays are here! We have seen store decorations up since mid-September and early bird deals advertised for several weeks, stretching the typical Black Friday deals throughout the month as retailers strive to ensure market share, while following increasingly stringent mandates for physical distancing