Buy an amount you can actually use

Unit price needs context

A large pack can seem like a good deal when you compare the price per kilogram. But what matters for your household is how much of it you’ll actually use. In this hypothetical example, two kilograms of fruit cost 4 euros and one kilogram costs 2.50 euros. If you only eat one kilogram from the larger pack and throw the rest away, you’ve paid 4 euros for the kilogram you used. The smaller pack is cheaper in this situation.

Before you shop, check what you have and what you realistically expect to need over the next few days. A visit from friends, a work trip, or eating out can change how much you need. You don’t have to plan every bite. Just know what you already have, what needs to be used soon, and which meals you’re shopping for. If the week is uncertain, buying a smaller amount can be a sensible choice even if it costs more per kilogram.

A larger pack makes sense if you’ll use enough of it, have suitable storage, or can reliably share it with someone else. Check whether storage is suitable for the specific product; don’t assume everything can be kept for later without limits. Savings don’t come from filling the pantry, but from buying something that genuinely meets a future need.

Look for the reason you regularly end up with too much. If you often have the same food left over, try buying less or changing how you plan to use it. If the number of people eating varies, adjust the amount. The goal isn’t to feel guilty about every leftover, but to make a better estimate next time you shop.