Cutting food waste at home

Find out what you are actually throwing away

Before changing anything, spend a week noticing what goes in the bin. Almost every kitchen turns out to have two or three repeat offenders rather than twenty scattered ones — usually a leafy sabzi someone buys out of optimism, a dairy item bought in a size too large, and cooked food that was made in a larger quantity than the household eats.

That is a much easier problem than general waste. Two of those three are fixed at the shop by buying differently, and the third is fixed at the stove by cooking to the number of people actually eating.

A storage order for a Pakistani kitchen

Most spoilage is a placement problem. Things rot in the wrong drawer, at the wrong temperature, or behind something taller. Put each group where it belongs and the same shopping lasts noticeably longer.

• Leafy sabzi — dhania, podina, palak, methi, saag: two to three days. Do not wash before storing. Wrap loosely in a dry cloth or paper, then bag it; trapped moisture on the leaf is what turns it to slime.
• Soft vegetables — tomatoes, bhindi, tori, karela: a few days in the drawer. Tomatoes are better left out of the fridge until they are properly red, then chilled if they need holding.
• Hardy vegetables — gajar, muli, shalgam, gobhi, cabbage: a week or two cold, longer if the greens are trimmed off carrots and radishes, because the leaves keep drawing moisture out of the root.
• Onions, potatoes, adrak, lehsan: out of the fridge, somewhere dark, dry and airy. Keep onions and potatoes apart — stored side by side, potatoes sprout and soften sooner.
• Dahi, milk and cream: the coldest shelf, not the door. The door is the warmest part of a fridge and swings through room temperature every time it opens.
• Gosht, keema and fish: the bottom shelf, sealed, so nothing drips onto anything below. Same day, or into the freezer before the day ends.

Keep a cook-first shelf

Designate the front of one shelf as the cook-first zone. Anything with a couple of days left goes there and nothing else does. It sounds trivial and it is the single most effective habit in this whole article, because the real cause of forgotten food is not carelessness — it is that the fridge is deep and the oldest item drifts to the back.

Apply the same idea to the dry cupboard. When a new bag of atta, rice or masala comes in, put it behind the open one rather than in front of it. A pantry loaded newest-at-the-front quietly grows a layer of stale packets along the back wall.

Leftovers: what reheats well and what does not

Some food is better the next day and some is finished the moment it cools. Knowing which is which decides whether leftovers get eaten or quietly binned.

Salan, daal and qeema are genuinely better after a night, because the masala keeps working and the fat settles into the gravy. Reheat them gently with a splash of water. Rice comes back well if you sprinkle water over it, cover the pan and let it steam rather than frying it dry. Roti goes leathery in the fridge; keep the day's rotis wrapped in a cloth inside a covered container at room temperature instead, and turn anything left the next morning into something else rather than reheating it.

Fried food is the exception in the other direction. Pakoras, samosas and cutlets lose their crispness in the fridge and a microwave makes them worse. A hot tawa or an oven brings back most of the texture. And whatever you are storing, cool it quickly and get it into the fridge rather than leaving the pot on the stove all afternoon — a pan cools much faster spread into a shallow dish than sitting deep in its own pot.

Portion before you freeze, not after

A kilo of keema frozen as one block is a single decision you have to make for the whole kilo, and it usually gets postponed until the block has been in there for months. The same kilo in four flat, sealed bags is four easy decisions, and each one thaws in a fraction of the time because it is thin.

Label every bag with what is inside and the day it went in, in marker on the bag itself. Freezers are dark, everything looks alike under frost, and an unlabelled bag becomes archaeology. Treat the freezer as a pause button rather than storage: it stops food deteriorating quickly, it does not stop it entirely, and a bag that has been in there since two seasons ago will be dry and dull however carefully it is cooked.

• Freeze in meal-sized portions, flat, so they stack and thaw fast.
• Press the air out before sealing; air is what causes freezer burn on the surface.
• Label with contents and the date it went in.
• Keep a list on the freezer door and cross items off, so you cook from it instead of forgetting it.

Buy in a way that produces less waste

The last of it happens at the shop. Two smaller sabzi runs a week waste less than one big one, because the second half of a weekly vegetable buy is always the half that has been sitting the longest. Buy the pack size your household finishes rather than the size that feels like better planning, and be sceptical of a pack bought for a recipe you have not cooked before.

One honest question stops most of it: when exactly is this going to be eaten? If the answer is a specific meal this week, buy it. If the answer is a vague sometime, it is probably a bin item wearing a good intention.