27 critical Christmas cooking mistakes to avoid this year

An unwanted Christmas guest

Hosting family and friends for Christmas meals can be stressful enough – but imagine if your guests ended up with food poisoning? That would be a festive gathering to remember for all the wrong reasons. Here, we reveal the common cooking mistakes that could poison you and your guests, and share our top tips for preparing food for a Christmas get-together without the risk of making everyone ill.

Click or scroll on to join us as we reveal the Christmas cooking mistakes that could cause food poisoning, counting down to the worst of all. 

27. Not checking your eggs

If you’re whipping up a batch of eggnog or making a festive meringue, make sure you check your eggs for the best-before date, which will be stamped on the shell. It’s also important to store your eggs correctly: in the US, eggs are sterilized after production to kill bacteria (which also weakens the eggshell) and must be kept in the refrigerator to prevent it from returning. In Europe, however, they’re not sterilized, so the shell provides a strong barrier and they can be stored in a bowl or carton on your countertop.

26. Stroking your pets whilst cooking

While it’s tempting to let your pets into the kitchen while preparing the Christmas meal – and even give them a festive stroke – doing so really is best avoided, as loose pet hairs and bacteria could be transferred into the food. If you forget (or just can’t resist!), wash your hand thoroughly in warm soapy water before you continue with your prep.

25. Re-freezing melted ice cream

By the time you get around to serving dessert, you may well be ready to sit back and relax. But, if there’s ice cream on the table to go with your Christmas pudding, make sure you put it back in the freezer before it starts to melt. If it’s left out for too long, harmful listeria bacteria can develop.

24. Taking risks with melon rinds

Serving melon and prosciutto? Make sure you prepare your melon properly. Fruits grown on the ground, like cantaloupe, watermelon and honeydew melons, have a high food poisoning risk because listeria bacteria can grow on the rough rind and spread to the flesh. Wash the outside of the fruit thoroughly and, to be extra safe, remove the flesh from the rind.

23. Forgetting to wipe down surfaces

Even though it’s probably second nature on a regular day, amongst the chaos of Christmas cooking it can be all too easy to forget the basics. Make sure you wipe down surfaces thoroughly before you start cooking and then ideally clean and tidy as you go. Leaving kitchen worktops and hobs dirty can encourage harmful bacteria to grow and, in turn, cause illness, plus it makes for a bigger clean up job at the end.

22. Ignoring damaged packaging

It’s tempting to ignore damaged packaging when there's only one item left in the chiller cabinet, but a ripped packet leaves food vulnerable to contamination and therefore raises your risk of food poisoning. Even if it means adjusting your festive menu, it's better to choose something different instead.

21. Cooking for others when ill

If you’re unlucky enough to fall ill with a sickness bug over the festive period, it really is best to avoid cooking for others (even if you are the designated chef). While you might be tempted to battle on once you start to feel better, if you’ve suffered from a sickness bug or upset stomach it’s best to avoid cooking for others until 48 hours after the symptoms have passed.

20. Not organizing your cart

When you’re rushing around the grocery store trying to remember everything from the cranberry sauce to the Christmas crackers, it’s easy to just chuck everything into your trolley or basket wherever there's space. Do take a moment to separate your fresh meat and vegetables, as close contact can lead to cross-contamination. Similarly, always pack raw and ready-to-eat foods into separate grocery bags.

19. Shopping for frozen food first

When you head out to stock up on food for the festive period, leave the frozen aisle until last. If you choose your frozen turkey or fill your cart with frozen party snacks at the start of your shop, all of that food could start to thaw – and bacteria that causes food poisoning could start to spread – before you’ve even finished your shop.

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18. Feeding Christmas foods to pets

If you have pets, it's important to be aware of the risks of feeding them certain festive foods (or leaving temptation within their reach). Many Christmas dishes contain ingredients that can cause vomiting and seizures and, in some cases, can even be fatal to animals. Poultry bones, turkey skin, onions, certain nuts and dried fruits, chocolate, alcohol, and yeasted doughs are among the common culprits – and all heavily consumed at this time of year. Play it safe and stick to their usual diet.

17. Overfilling the refrigerator

A refrigerator heaving with food might seem like good news with a busy few days of hosting (and eating) ahead. But an overfilled refrigerator means there’s not enough air to circulate – so the temperature rises, increasing the risk of bacteria growing. Bacteria grows most quickly between 8-46-140℉; your refrigerator temperature should be set to around 37-40℉.

16. Dismissing expiry dates

Trying to get your festive food shop done nice and early is all very well, but expiry dates are there for a reason – and eating out-of-date food raises your risk of contracting food poisoning. However, if a label says ‘best before’ or similar, it’s more of a guide to show when that item may be past its best, so you can use your judgment on whether it’s safe to eat.

15. Forgetting to wash your hands

It may sound obvious, but it's easy to cut corners when you're rushing around with several pots, pans, and parties on the go. However busy you are, though, washing your hands thoroughly with soap and water is a step you should never skimp on. It's most important before and after handling raw meat and vegetables, to reduce the risk of spreading bacteria. Always keep any hand towels and dish towels away from food to avoid cross-contamination.

14. Stuffing the turkey

Cooking your stuffing separately ensures both it and the turkey cook properly. If you put stuffing into the cavity of a turkey, it makes the bird become a solid mass, making it harder for heat to travel all the way through. If you really want to stuff the turkey, make sure you fill the neck area just before popping it in the oven and be aware that stuffed turkeys take longer to cook.

13. Not washing vegetables properly

It’s extremely important to make sure you wash vegetables thoroughly to avoid an outbreak of food poisoning. Vegetables may have come into contact with manure or pesticides and still have soil and dirt on them that can harbor bacteria – so washing is essential. Make sure you also dispose of any unwashed peelings, to avoid contamination.

12. Leaving food out for too long

Once you’ve laid out the Christmas meal ready for people to help themselves, make sure the leftovers aren’t left out on the table for too long. Ideally, everything should be cooled and stored in the refrigerator or freezer within two hours. If they’re left out, there’s an increased risk of bacteria reproducing.

11. Eating a dodgy Boxing Day buffet

Much like leaving leftovers out for too long, beware of a buffet that has been sat out all day. Particularly risky foods include meat, fish, rice, and eggs. It’s best to top-up or refresh your buffet every couple of hours, rather than leave food out all afternoon.

10. Washing your turkey

It’s unnecessary to wash your turkey – bacteria will be killed during the cooking process and won't be removed by water. What’s more, rinsing a turkey under a running tap can cause splashes of bacteria-packed water to spread over work surfaces and your clothes.

9. Poor hygiene around deli meats

Along with poultry, vegetables, eggs, and shellfish, deli meats are among the most common sources of food poisoning and are often found on a Boxing Day buffet table. They can become contaminated with bacteria both during processing and in the deli if staff don't exercise proper hygiene measures. Pre-packaged meats have a lower risk. Whatever you choose, make sure yours are stored correctly and not left out for more than two hours.

8. Leaving seafood out of the refrigerator

Fish and shellfish are a common cause of food poisoning, so take extra care if you’re planning a classic prawn cocktail starter or including fish such as smoked salmon on your Boxing Day buffet. Seafood must be kept chilled, so make sure it’s one of the last things you pick up when shopping – and never leave it out in the kitchen.

7. Storing your turkey incorrectly

Make sure you read the storage instructions on the packaging of your bird properly. Most will include use-by dates and detailed advice, so be sure you know exactly what you should be doing. A fresh turkey, or a raw one that's been defrosted, should be placed on a plate, covered and kept in the refrigerator (making sure it isn't touching, nor positioned above, other foods) for no more than two days.

6. Incorrectly thawing the turkey

A frozen turkey needs to be thoroughly defrosted before cooking. If frozen areas of the bird remain, the meat won’t cook evenly, raising the risk of harmful bacteria surviving the cooking process. Thawing your turkey in a refrigerator is best, with the bird covered in a dish to prevent the spread of bacteria. Remove any giblets as soon as possible to speed up the process and allow roughly 10 hours per 2.2lb. If it’s not possible to fit the turkey in the refrigerator, it can be thawed in a cool room, reducing that time to four hours per 2.2lb.

5. Reheating leftovers more than once

Whether you’re reheating leftover turkey to make sandwiches, a pie or a curry, make sure it’s heated until steaming hot all the way through (and that frozen meat has thawed thoroughly beforehand). Never reheat meat twice, and throw any unused reheated turkey away.

4. Putting hot turkey in the refrigerator

You can store cooked turkey in the refrigerator until you're ready to reheat and eat – but make sure it’s cooled first and that it goes into the refrigerator within two hours of coming out of the oven. Putting it in the refrigerator still warm encourages bacterial growth, as does leaving it out for too long. If needed, you can carve the turkey into smaller pieces to make it cool quicker. Meat will keep for two days in the refrigerator – if you want to keep it for longer, it needs to be frozen.

3. Undercooking your goose (and other birds)

It’s important to use the correct cooking times for chicken, duck, and goose. Preheat the oven to 400°F and cook goose for 35 minutes per 2.2lb and duck for 45 minutes per 2.2lb, adding on around 20 minutes extra in both cases. Chicken should be cooked at 350°F for 45 minutes per 2.2lb, plus 20 minutes.

2. Underestimating your cooking time

Make sure you work out how long your turkey needs to cook well in advance. Eating undercooked poultry carries a big risk of food poisoning. A large bird will need several hours to cook thoroughly, so get it in the oven early enough. As a guide, for an unstuffed turkey under 10lb, allow 45 minutes per 2.2lb plus 20 minutes.

1. Relying on guesswork

Even when following strict timing guidelines, it’s important to check your bird is cooked through to reduce the risk of food poisoning. The easiest way to do this is to pierce the thickest part of the meat – if the juices run clear with no hint of pink or blood, the bird is cooked. Alternatively, you can check the temperature – the thickest part should be a minimum of 170℉.

Now discover the best Christmas cooking tips from celebrity chefs

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Last updated by Emily Shardlow-Price.