Food-safety experts explain where party hosts go wrong, from topping off half-empty platters to trusting a warming tray, plus the simple fix for each mistake.
Reviewed by Dietitian Katey Davidson, M.Sc.FN, RD, CPT
Key Points
- Serve food in small portions and swap in fresh backups to maintain safety and quality.
- Use a thermometer to ensure food reaches safe internal temperatures before serving.
- Refrigerate leftovers within two hours in shallow containers to cool quickly and safely.
The doorbell keeps ringing, someone needs a corkscrew, and the meatballs you set out at 5 p.m. are still on the counter at 8. Hosting pulls your attention in a dozen directions, and food safety often falls off the radar. That’s a problem: Foodborne illness sickens roughly 1 in 6 people in the U.S. every year.
To find out where hosts go wrong, we asked two people who feed crowds for a living. Nancy Isa, M.S., RDN, LDNspent 15 years as an event caterer in New York City. She now runs a nutrition program in Hartford, Connecticut, that serves 1,500 meals a day. McKinzie Bridges is a chef-instructor at the Institute of Culinary Education. Here are seven common mistakes they see home cooks making and the simple fix for each.
Mistake #1: Putting Out All the Food at Once
Setting out the whole spread before the first guest arrives feels efficient. Whether it works depends on the kind of party you’re hosting. “If the event is structured, such as a dinner party in which everyone will sit down at once to dine, then having everything ready at once is perfect,” says Bridges. “But for the more casual get-togethers, like a filter-in-and -out cocktail party, typically it’s best to put food out in batches as new guests arrive. This helps assure you don’t run out of food for anyone arriving late, and also protects the quality of the bites served.”
Isa borrows a move from professional caterers. “Put out smaller portions first and when those run low, swap in fresh backups that were stored cold in the fridge or hot from the oven,” she says. For the backups waiting in your refrigerator, that means keeping the fridge set at 40°F or below.
Mistake #2: Losing Track of How Long Food Has Been Sitting Out
Once the party gets going, it can be hard to remember when each dish came out and how long they’ve been sitting. “According to the USDA, food can safely sit out for two hours at room temperature, or one hour outside at a summer party,” says Isa.
Her fix is simple. “An easy way to keep track is by setting a timer on your phone when you put the food out; start the timer when the food hits the table, not when the first guest starts eating.” If you want to avoid using your phone at a party, Bridges suggests writing the time each dish went out on the inside of its tent card.
Mistake #3: Assuming Your Warming Tray Keeps Food Hot Enough
Chafing dishes, warming trays and slow cookers only help if they keep food hot enough. “Hot foods should stay above 140°F when they are out,” says Isa.
Bridges says a chafing dish can do the job with some attention. “Assure you are using enough [fuel cans] to keep the temperature of the water basin hot enough to keep the food heated through. Additionally, depending on the ambient temperature, leaving the chafing dish covered in between guests serving themselves might be necessary,” she says. “And to assure the food remains above that recommended hot-holding temperature, it doesn’t hurt to check the internal temperature a couple times throughout the party with a food-safe temperature probe.”
Warming trays, chafing dishes and slow cookers should never be used to reheat cold food, says Isa. Reheat dishes to 165°F on the stove or in the oven first, then move them to the warmer.
Mistake #4: Adding Fresh Food to Half-Empty Serving Dishes
When a platter starts looking sparse, piling fresh food on top seems like an easy fix. Isa explains why it backfires. “Food in a half-empty dish has been sitting out for a while, so germs have had time to grow. It has also been touched by serving spoons and guest hands, which introduces new germs. If you pile fresh food on top, the germs spread to the new food, and the old food at the bottom stays out even longer.”
Bring out a full replacement instead and carry the old dish back to the kitchen. “It’s best to swap the whole dish with a backup that was stored at the proper temperature,” says Isa.
Mistake #5: Using the Same Plates or Utensils for Raw and Cooked Foods
Raw meat, poultry and seafood can carry bacteria like Salmonella and E. coli. Those germs travel to other foods on hands, utensils and surfaces. At a party, the riskiest moment is often at the grill. “Never put cooked meat on the same plate that you used to carry raw meat and don’t let the same tongs or foods touch both raw and cooked food,” says Isa. “Use one set of tongs while cooking and then grab a clean set to move finished food onto a clean plate.”
In the kitchen, Bridges recommends handling all your raw ingredients first. Get them cooking, then clean and sanitize your workspace before you start the rest of your prep. “Another tip is to have a designated cutting board, knife and utensils that are used with raw foods; that way salad fixings are never cut on the same cutting surface as your chicken,” she says.
Mistake #6: Guessing When Food Is Fully Cooked
A golden crust says little about what’s happening inside. “Oftentimes food will brown on the outside, like the sear on a chicken breast or the toasting of breadcrumbs on top of a baked dish, far before the internal temperature of the food is where it needs to be,” says Bridges.
Isa’s fix is a meat thermometer. “Even the most seasoned professional chefs carry a thermometer with them at all times,” she says. “Cook poultry to 165°F, ground meat to 160°F, and steaks, chops and fish to a minimum of 145°F.” Let whole cuts of beef, pork, veal and lamb rest for 3 minutes after they hit 145°F. Bridges notes that a thermometer is just as useful for a baked casserole as it is for a protein. Casseroles and other mixed dishes should reach 165°F.
Mistake #7: Waiting Until the Party Ends to Refrigerate Leftovers
It’s tempting to wait to deal with the food after the last guest leaves. But by then, some dishes have been out for hours. “Put leftovers in the fridge within two hours of it being put out,” says Isa. “Use smaller shallow containers so food cools quickly, and break it up into batches to help it cool as quickly as possible. Always store cooked leftovers on a shelf above raw foods in your fridge.”
A post-party fridge is often packed to the edges, which creates a different problem. “Overpacking the fridge doesn’t allow air to flow and cool all the foods,” says Isa. “Make sure there is space between items so your fridge can do its job.” Plan to eat refrigerated leftovers within three to four days.
The Bottom Line
Most party food safety comes down to time and temperature. Set out small portions and swap in full replacement dishes instead of topping off half-empty ones. Note when each dish hits the table and keep hot food at 140°F or above. Check doneness with a thermometer rather than by color. Keep separate plates and tongs for raw and cooked foods, and get leftovers into shallow containers in an uncrowded fridge within two hours.
Most of this takes care of itself if you prep before the doorbell starts ringing. Clear space in the fridge, keep a thermometer by the stove and pull out a few extra platters so your backups have somewhere to go.