Written by Angela Reviewed by Daniel

Here’s Why You Should Never Ignore Expiry Dates on These 11 Foods

Many people glance at expiry dates and assume they are just a suggestion, but some foods carry serious health risks once they pass that printed date.

In the UK, the “use by” label is not just a warning. It is a legal instruction for safety. Eating food past this point can put you at risk of food poisoning, even if it smells fine or looks normal.

“Best before” is different and refers to taste or texture, not safety. When it comes to perishable products, ignoring the date could leave you dealing with an upset stomach or something worse.

Here are 11 foods where expiry dates must always be taken seriously if you want to avoid harmful bacteria or digestive trouble.

Table of Contents

1. Flavoured Yoghurts

Yoghurts are often assumed to last longer than they do, especially the fruit filled types. While they may still taste sweet after the date, they could be developing bacteria that upset your stomach. The added sugar can actually help bacteria multiply faster.

You might notice a slight separation or swelling of the lid, which is a warning sign. Eating these after the expiry date can lead to digestive issues. Always check the label and finish them in good time.

2. Plant Based Milks

Milk alternatives like almond or oat milk may be dairy free, but that does not mean they are safe to drink after their expiry date. Once opened, they can grow mould or bacteria quickly, especially if stored outside the coldest part of the fridge.

These changes may not always smell strong. Drinking plant based milk that has expired can lead to bloating, upset stomach or food poisoning. Always finish the carton within the time shown and never risk a sip just to check.

3. Fresh Pasta

Chilled pasta sold in the refrigerated section of the supermarket may look fine, but it can grow harmful bacteria if left too long.

Once the “use by” date is reached, any bacteria present may have multiplied to unsafe levels. This includes strains that can lead to stomach cramps or food poisoning.

Cooking the pasta will not always kill everything, especially if it has started to sour. The texture might feel normal, but it can carry invisible risks.

Always store it in the coldest part of your fridge and never eat it once the date has passed.

4. Store Bought Coleslaw

Coleslaw made with mayonnaise and shredded vegetables is one of the easiest foods to mishandle. The mix of raw cabbage and dairy can turn bad quickly, even in a chilled fridge. Any contamination spreads easily through the tub.

Once the date has passed, there is a higher chance it will make you unwell. Some people may not show symptoms right away, but the risks are still real. It is always best to dispose of coleslaw on the date shown.

5. Packaged Smoothies

Fruit smoothies may look healthy but can become a hidden risk when consumed after the expiry date. Even refrigerated smoothies can carry harmful bacteria if the fruit inside has started to ferment.

These drinks often contain yoghurt or milk, which shortens their lifespan. The sugars inside also feed bacteria quickly. You might not smell anything wrong, but that does not mean it is still good.

Always follow the label and finish within the time stated once opened.

6. Dairy Desserts Like Custard Pots

Sweet dairy products such as custard pots and creamy dessert cups may seem harmless, but they can go bad fast.

These treats are made with milk or cream and can develop bacteria that grow even in cold conditions. Eating them after the expiry date can cause nausea, bloating or diarrhoea.

The surface may look smooth, but that does not mean it is safe. Trust the printed date and avoid any that smell sour or appear slightly separated.

7. Fresh Soup

Packaged fresh soups from the chilled section are full of moisture and often contain dairy, vegetables or meat. This makes them the perfect place for bacteria to grow if they are left past the safe date.

Even sealed containers can be risky once the time has passed. Heating it thoroughly does not always remove the danger. Never taste a spoonful to check. It is better to throw it away if you are unsure.

8. Chilled Quiche

Chilled quiche sold in shops is made with eggs, cream and often cooked meats or cheese. These ingredients spoil quickly after the printed date.

Quiche may seem firm and fresh even after a few days, but this can be misleading. Bacteria can thrive inside the egg mix, especially in unevenly cooled fridges.

If there is any doubt, do not take the risk. The safest move is to eat or freeze it by the date shown.

9. Pizza

Refrigerated pizzas that are sold ready to bake often contain raw meat, cheese and sauces.

These ingredients spoil fast and can carry harmful bacteria once the expiry date is reached. Even if it is not cooked yet, it might already be unsafe.

Cooking does not guarantee full safety if it has already turned bad. Watch out for a sour smell, slimy toppings or off colouring. To be safe, freeze it before the date if you want to eat it later.

10. Filled Pastries

Pastries with cream or meat fillings are often overlooked when it comes to checking expiry dates. They can grow bacteria like staphylococcus or E. coli that are not always visible or easy to detect by smell.

Just because they are flaky or still crisp does not mean they are safe to eat. Once the date passes, the internal filling may start to spoil even if the outside looks fine. Never take a chance with these snacks. Always eat or freeze them before the date printed.

11. Rice Pudding in Chilled Pots

Refrigerated rice pudding may seem gentle and comforting, but it is also a food that should never be eaten after the printed date.

Made with milk and sugar, it can support the growth of harmful bacteria without obvious changes in smell or texture. These bacteria can continue to grow slowly in the fridge, making it a silent risk.

The creamy base may hide early signs of spoilage. If the pudding is past its expiry date, the safest option is to bin it.

Let Others Know Why These Expiry Dates Matter!

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