Start With the Fridge, Not the Supermarket

The single biggest saving in a UK kitchen isn't a discount supermarket or a bulk-buy run — it's the food you've already paid for. Before you write a shopping list, open the fridge and take everything out. Not a quick glance. Actually take it out.

Line it up on the worktop and sort it into three piles: eat today, eat this week, and needs dealing with now. That bendy carrot, the half a swede, the sad pepper at the back of the drawer — they become the skeleton of your meal plan, not the bin's problem. Then build your week around them.

A few habits that make this stick:

• Keep a "use me first" shelf at eye level in the fridge. Anything that goes there gets eaten before anything else.
• Plan three or four dinners, not seven. Leave gaps for leftovers and whatever the fridge throws at you.
• Write the list in the shop's aisle order so you're not guessing, and stick to it.
• Check the bread bin and fruit bowl too. A banana going spotty is tomorrow's banana bread, not a tragedy.

Store It Properly and Buy Yourself Days

Most food waste isn't a cooking failure — it's a storage failure. Get these basics right and you'll add days, sometimes weeks, to your groceries.

• Fridge temperature: aim for 0–5°C. Most UK fridges run warm, and every degree costs you freshness.
• Leafy herbs — parsley, coriander, mint: trim the stems, stand them in a jar of water, cover loosely with a bag and keep in the door. Soft herbs that are past it can be chopped and frozen in ice-cube trays with a little oil.
• Salad leaves: line the bag or box with kitchen paper and swap it when damp. Dry leaves last far longer than wet ones.
• Cheese: wrap in greaseproof paper rather than cling film, then into a loose bag. It needs to breathe.
• Potatoes, onions and garlic want cool, dark and airy — and away from each other. Onions make potatoes sprout, and both sulk in the fridge.
• Bread: sliced and frozen on day one, toasted from frozen as needed. Far better than a stale loaf by Thursday.
• Bananas and apples release ethylene that ripens everything nearby. Keep them apart from your greens.

Cook the Whole Vegetable, Not Just the Pretty Bits

Once you start seeing stems, leaves and peelings as ingredients rather than rubbish, your vegetable box goes roughly a third further.

• Broccoli and cauliflower: peel the stalk and slice it — it's sweeter than the florets. Cauliflower leaves roast beautifully in a hot oven with oil and salt.
• Carrot tops: blitz with garlic, nuts, parmesan and oil for a punchy pesto. Stir through pasta or spoon over roasted roots.
• Spring onion roots: stand them in a jam jar of water on the windowsill and you'll have fresh green tops within a fortnight.
• Celery leaves: chop and add to soups, stocks and salads instead of throwing them out.
• Stale bread: blitz into breadcrumbs and freeze, or cube and roast with herbs for croutons.
• Wilting greens: shred and stir into a curry, a frittata or a pan of bubble and squeak.

Soft tomatoes, bendy courgettes and tired mushrooms are all better roasted hard and blitzed into a sauce than they ever were raw.

Bones, Carcasses and the Stock Habit

A roast chicken carcass is not finished when the meat is off it. Neither is a ham hock, a lamb bone or a bag of prawn shells. Keep a freezer bag for vegetable trimmings — onion skins, carrot ends, mushroom stalks, herb stems — and add to it through the week.

When the bag is full, tip it into a pot with a chicken carcass, cover with cold water, add a bay leaf and a few peppercorns, and simmer gently for two to three hours. Strain, cool, and freeze in portions. That's free, deeply flavoured stock that makes risotto, soup and gravy taste like you've slaved over it.

The same logic applies to a Sunday roast: strip every scrap of meat, use it in a Monday pie or a bowl of noodles, and put the bones straight on to simmer while you eat.

Grow a Little, Waste a Lot Less

You don't need an allotment. A windowsill, a few pots and a grow-bag on a balcony will do more than you'd think — and growing your own changes how you value food.

• Cut-and-come-again salad in a trough by the back door. Snip what you need, it regrows in a fortnight.
• Perpetual spinach or chard in a large pot: tough, generous and happy in British weather.
• Herbs from supermarket pots — split them into three pots, water well and keep on a bright sill. Cheaper than buying cut herbs weekly.
• Radishes, rocket and spring onions all crop fast in a grow-bag, and you can sow little and often so nothing arrives all at once.

When a glut does land — courgettes, runner beans, tomatoes — deal with it the day you pick it. Roast and freeze, make chutney, or pass it on to a neighbour. A glut left on the side for three days becomes waste.

Make the Freezer Your Pause Button

Almost everything is freezable if you're sensible about it. Milk, grated cheese, bread, chopped herbs, leftover wine, citrus zest, cooked rice, portions of stew, over-ripe bananas. Label with the date and what it is, and keep a list on the freezer door.

Then, once a fortnight, eat from the freezer rather than the shop. It's the easiest money you'll save all month — and the bin stays emptier for it.