As rising temperatures continue to strain household food supplies, experts are emphasizing the importance of proper storage techniques to combat increased spoilage and reduce food waste. Research commissioned by appliance brand Hotpoint indicates that British households discard over £138 million worth of fresh fruits and vegetables weekly, a figure exacerbated during heatwaves.

Dr. Waqqas Jalil, a food safety expert, advises treating food storage as a critical kitchen task, particularly in warmer weather when bacteria multiply rapidly. Improperly stored food can lead to food poisoning, posing greater risks to vulnerable populations including children, the elderly, pregnant women, and individuals with compromised immune systems.

Maintaining an optimal refrigerator temperature is crucial. Nick Fletcher, marketing manager at ASKO appliances, recommends keeping the fridge between 3°C and 5°C to slow bacterial growth and preserve food quality. However, a recent study suggests the average UK fridge is set 2°C warmer than recommended, underscoring the need for accuracy. Dr. Jalil suggests using an inexpensive fridge thermometer, as refrigerators can struggle to maintain consistent temperatures during heatwaves, especially with frequent door openings. A safe temperature is around 4°C; exceeding this can make meat, dairy, eggs, seafood, and leftovers riskier to consume.

Relying on smell alone to determine food safety is a common pitfall. Dr. Jalil warns that food can appear and smell normal while still being unsafe, stressing that time and temperature are more reliable indicators for meat, fish, dairy, eggs, cooked rice, pasta, and leftovers.

Proper fridge organization also plays a significant role in extending food freshness. Raw meat, fish, and seafood should be stored in sealed containers or tightly wrapped to prevent cross-contamination. Dairy products, cooked meats, eggs, and leftovers are best placed on middle shelves. Ready-to-eat items and deli meats can occupy the top shelf, while condiments and sauces are suited for the fridge door.

Fruits and vegetables should be stored in crisper drawers but kept separate. Some fruits, such as apples, pears, and avocados, release ethylene gas as they ripen, which can accelerate the spoilage of other produce when stored together. Fridges with humidity controls should have a high setting for vegetables and a low setting for fruits.

Overfilling the refrigerator is another common mistake that hinders proper air circulation, leading to temperature fluctuations and faster food deterioration. Each shelf should have adequate space to allow cool air to circulate effectively.

Specific Storage Recommendations:

Vegetables

Mushrooms, onions, and garlic are best stored in paper bags or mesh containers rather than plastic, which traps moisture and can cause sliminess. Salad leaves benefit from kitchen roll or a clean cloth in their bags to absorb excess moisture, slowing wilting. Fridge drawers lined with paper towels can help keep delicate produce like strawberries and spinach dry, reducing the risk of mold.

Potatoes should be stored in a dark, cool place, separate from apples and tomatoes. Tomatoes can be kept on the counter or in a vented container, lasting about five days. Asparagus can be stored upright in water on a fridge shelf, with its tops lightly covered, for up to four days. Beets and bell peppers can be kept in plastic bags on the fridge shelf, lasting two weeks and seven days, respectively. Cabbage stored wrapped in clingfilm in a fridge drawer can last two weeks, while carrots in a plastic bag in the drawer can last three weeks. Celery should be wrapped in foil and stored in a drawer to last two weeks. Cucumbers, kept in their packaging, will last one week in a drawer. Leafy greens can be stored in a plastic bag with a dry sheet of kitchen roll to absorb moisture, lasting for a week.

Avocados can be refrigerated for four days. Halved avocados should be wrapped in clingfilm and may benefit from lemon juice to prevent browning.

Fruit

Apples can be stored unwrapped in a fridge drawer for three weeks. Citrus fruits, such as oranges, lemons, and limes, can be kept unwrapped on the fridge shelf for two weeks. Halved citrus fruits should be wrapped in cling film for up to five days.

Uncut bananas are best kept on the countertop. For half a banana, wrap it in foil and refrigerate for up to two days. Ripe stone fruits like peaches and plums can be stored unwrapped in the fridge for up to five days. Berries should be stored uncovered or in a vented container in the fridge drawer for three to five days. Grapes can last up to two weeks when stored in a perforated plastic bag in the fridge.

Meats, Poultry, Fish, and Eggs

Cooked meats such as burgers, sausages, and chicken should be refrigerated within two hours of cooling, preferably in airtight containers. Unopened bacon can be stored in a sealed bag with no air in the fridge's meat drawer for up to two weeks, while opened packs last one week. Freezing bacon can extend its shelf life up to a month.

Opened deli cold cuts will keep for one week on a fridge shelf in a sealed bag; unopened packs last two weeks. Pre-packaged cuts should remain in their packaging, lasting two weeks if unopened and five days if opened.

Live shellfish should be kept in a single layer on a fridge shelf in a shallow tray covered with a damp kitchen roll, for no more than a day. Raw fish and shellfish like scallops and shrimp should be kept in their original packaging in the meat drawer. For longer storage, fish and shellfish can be frozen in a sealed bag for three to six months.

Eggs can be kept in their carton on the fridge shelf for up to two weeks or until their expiration date. Smoked fish, such as salmon, can last two weeks unopened on the fridge shelf or five days opened; freezing in a sealed bag can extend this to six months.

Herbs

Basil, coriander, and parsley can be kept fresh for a week by placing their stems in water and loosely covering the tops with a plastic bag. Coriander requires refrigeration, while basil can stay on the countertop. Rosemary and thyme can be wrapped in clingfilm and stored on the fridge shelf for two weeks. Chives should be wrapped in damp kitchen roll, then clingfilm, and kept on the fridge shelf for five days.

Freezing is also a viable option for extending the shelf life of various items. Dr. Jalil recommends freezing small portions of milk, chopped herbs, grated cheese, or sliced bread before they spoil. Eggs (without shells) and mashed avocado can also be frozen. Freezing food early, before quality degrades, is key, and bread should be sliced before freezing for convenience.