Food money leaks at the bin more than at the till. Plan before you shop, check whether bulk is cheaper, count delivery costs and compare prices properly.
People trying to cut food costs usually focus on finding cheaper shops, but the larger sums leave through food bought and never eaten. Buying 10% cheaper and binning a third of it means you paid more. Before comparing discounts, recalling what you threw out last week is the faster saving.
Shopping without a list means buying what you already have and picking up things you do not need. Glancing through the fridge, deciding two or three things you will actually cook this week, and writing a list against that cuts impulse buying sharply. Shopping hungry raising spending is also well established. Write the list on your phone in the order you walk the shop (vegetables, meat, dairy, frozen) and you will loop back through aisles picking up whatever catches your eye less often. For online shopping, leaving items in the basket and paying a day later filters out impulse buys.
By unit price the larger pack wins, but the sum flips once you bin what you could not finish. Bulk suits things that keep — rice, paper goods, frozen food — while fresh items are better bought in quantities you will actually eat. The smaller the household, the more this distinction matters.
If you cannot work out why food is costing so much, adding up a month of delivery orders often answers it. Beyond the food itself, the delivery fees and the extra items added to clear a minimum order accumulate. Setting a number of times per week lasts longer than cutting it out entirely.
The same ingredient lasts very differently depending on where and how you store it. Portioning and freezing as soon as you get back, or putting what needs eating first where you can see it, reduces waste on its own. Setting a weekend 'clear-out' meal such as fried rice, a stew or savoury pancakes that can take a bit of everything empties the fridge neatly.
Most food savings are decided in the ten minutes before you shop. It need not be an elaborate meal plan; going through the steps below once cuts both spending and waste for the week. For the first few weeks, note what you actually ate and threw away, and your next plan will be far more accurate.
Discount labels keep you busy, but what you should compare is the unit price. Looking at the price per 100 g or per item often shows a multi-buy deal is actually more expensive. Seasonal vegetables and fruit are cheap and taste good, making them the easiest saving, and frozen vegetables come prepped with no waste, which suits single households in particular. Store-brand basics such as flour, sugar and tinned goods often differ little in quality. On the other hand, never forget that buy-one-get-one and bulk deals pay off only if you can use it all before it expires.
Common mistakes when cutting food costs are starting too strictly and going back to delivery within two weeks, buying labour-intensive ingredients because they are cheap and never using them, and eating food that has gone bad because throwing it out feels wasteful. That last one is not saving; it is a risk. Food that smells or looks off or has mould, and cans or cartons whose packaging has swollen, should be thrown away however wasteful it feels. Scraping off visible mould often does not make food safe. Savings should come from planning to eat food before it spoils, not from eating spoiled food.