ServSafe Training: The Fascinating Mayonnaise Myth Exposed
During ServSafe MN training, we often discuss stories of food poisoning incidents blamed on tainted mayonnaise in potato salad, sandwiches, or dips. Mayonnaise is widely believed to be highly perishable and demands additional precautions when utilized in food production. If you investigate further, you’ll find that it’s often not mayonnaise that has caused a foodborne illness. More often it’s other ingredients that have not been prepared to ServSafe training standards.
ServSafe MN Training and the Mayonnaise Myth
Commercially produced mayonnaise is loaded with acids and preservatives, so it generally does not spoil quickly. Refrigerating mayonnaise is typically recommended. However, the recommendation is more about diners’ taste preferences than creating a food safety hazard. There are even some unverified claims that adding mayo to dressings, and cold sauces can extend the life of those products. These claims are attributed to the acids and preservatives in commercially produced mayonnaise.
To be clear, ServSafe training does not refer to commercially processed mayo in this discussion. If you make your own mayonnaise in your restaurant, you will likely use raw eggs. You will also likely not add as much acid and preservatives as your standard store-bought mayo. We strongly recommend treating in-house mayonnaise as a volatile food product and always keeping it under refrigeration.
If it’s not the mayonnaise that causes food poisoning, why do common dishes that contain it make people ill? Ingredients such as cooked potatoes, pasta, and vegetables are not shelf-stable. Cooked potato dishes are, in fact, highly susceptible to bacteria growth. Leaving a potato or pasta salad at room temperature for an extended time will create a health hazard for anyone who consumes it. Many potato salads also contain cooked eggs, which are incredibly susceptible to bacteria if not refrigerated properly.
Cross-contamination Is Frequently The Culprit
We have also heard mayonnaise blamed for food poisoning incidents that have occurred as a result of eating at a buffet-style event. Cross-contamination during food preparation or service directly causes the onset of these illnesses. Cross-contamination occurs when a utensil is dipped into another dish on the buffet or when the mayo spreader comes into contact with meat proteins and then is returned to the mayonnaise dish. In these cases, it is highly likely that bacteria have contaminated the mayonnaise. While that mayonnaise may not need refrigeration, any bacteria introduced into it will grow at room temperature.
The bottom line of the ServSafe training is that it is crucial to avoid cross-contamination and handle every ingredient correctly when using mayonnaise in your establishment.
CFPMs Learn The Truth About Food Truck Operation
From a financial standpoint, owning a restaurant is out of the question for the average certified food protection manager (CFPM). Most chefs do not have the financial backing to purchase or build a restaurant, and many banks consider restaurants a high-risk opportunity, making financing hard to come by. Is being your own boss out of reach for all but a few food service workers? Buying and operating your food truck may be feasible if you’re ready to be independent but have limited financial resources. Still, CFPMs should know that the Minnesota Food Code has specific guidelines for food truck operators, especially those looking to start a food truck venture.
CFPMs and the Food Truck Revolution
The Minnesota Department of Health set up particular rules that food truck operators must follow to keep the food they serve safe. Some regulations that create a challenge for food truck owners/ CFPMs include:
- Handwashing
- Hot food holding
- Dishwashing
Just like in a typical food production facility, handwashing stations must be present and have ample hot water, soap, and paper towels. Operating a food truck with self-contained plumbing can pose challenges in setting up handwashing stations. When acquiring or designing a food truck, it’s crucial to guarantee that the water tanks are engineered to hold enough water to last the entire day. Not all food trucks have on-site water hookups, so you cannot depend on a water source at every location you serve.
Hot food holding can also be an issue when providing food service from a mobile unit. Plan a menu that is easy to cook to order and does not require hot holding. If you plan to keep any food hot, it’s crucial to ensure that the food truck is equipped with heat lamps, chafing dishes, or a steam table to keep the food out of the danger zone.
Dishwashing Will Be A Consideration
Finally, dishwashing can be an issue. If you only have a limited water supply, you won’t want to waste it on washing plates and silverware. We strongly recommend using recyclable plates, utensils, and other items to serve your guests. As for cooking tools used during service, CFPMs will find keeping a backup of items such as tongs, spatulas, and other tools essential for operating a food truck is important.
Are you a MN Certified Food Protection Manager looking to branch out by purchasing your food truck? Leave us a comment or a question below, and we’ll anonymously address any other concerns you may have in a future blog.