Why your cleaning cupboard is the place to start

Most of us think about sustainability in the kitchen or the wardrobe long before we think about the cupboard under the sink. Yet that cupboard is where a surprising amount of environmental impact hides. Conventional sprays, pods and liquids are largely water, wrapped in single-use plastic, and they carry surfactants, phosphates, synthetic fragrances and preservatives that travel through our drains into rivers and coastal waters. They are also, per millilitre of actual cleaning power, remarkably expensive.

The good news is that the swaps are simple, cheap and genuinely effective. You do not need to rebuild your whole routine in a weekend. Pick three changes, live with them for a fortnight, and build from there. Below are the ones I recommend most often, along with the specifics that make them work.

Laundry: gentler on fabrics and waterways

Laundry is the biggest cleaning job in most homes, and the easiest place to make a real difference. Start by washing at 30°C on a full load — most modern detergents are formulated to work perfectly well at lower temperatures — and then adjust what you put in the drum.

• Washing soda (sodium carbonate) softens hard water and boosts cleaning. Add one tablespoon to the drum alongside a reduced dose of your usual detergent, or use it to replace a booster powder entirely.
• White vinegar in the fabric conditioner compartment softens towels and reduces static without coating fibres in synthetic film. It smells sharp in the bottle and not at all on the clothes.
• Soap flakes or soap nuts suit delicates, wool and anyone with sensitive skin, and come in cardboard rather than plastic.
• Wool dryer balls cut drying time, separate laundry in the drum and replace single-use dryer sheets.

If you use a refill service for your detergent, decant it into a sturdy glass or recycled plastic bottle you already own and keep a jug nearby for measuring. A capful is rarely the right dose for a smaller machine or a lighter load.

Surfaces: one bottle, many jobs

A single all-purpose spray can handle worktops, tiles, cupboard doors, skirting boards and most of the bathroom. Mix roughly 250ml of white vinegar with 250ml of water in a spray bottle, add a few drops of tea tree or eucalyptus oil if you like a fresher scent, and label it clearly with the date.

• For stone, marble and sealed wood, skip the vinegar — acid dulls these surfaces. Use warm water with a small squeeze of mild soap instead.
• Bicarbonate of soda made into a thick paste with a little water lifts stains from sinks, grout, oven doors and tea-stained mugs. Leave it for ten minutes before scrubbing.
• Half a lemon and a pinch of coarse salt refreshes wooden chopping boards and shifts lingering garlic and onion smells.
• Citric acid dissolved in warm water descales kettles, shower heads and taps in minutes.

Keep a couple of well-rinsed cotton cloths and a spray bottle in each room where you clean, so the sustainable option is also the convenient one.

Dishes and the washing-up bowl

Washing-up liquid is one of the most concentrated products in the house, so a refillable version goes a long way. Look for a refill station or a concentrate you dilute at home, and you will cut both plastic and cost noticeably. A solid washing-up bar rubbed onto a wet brush is excellent for everyday plates and pans, and lasts for months.

For dishwashers, run the eco cycle and skip the pre-rinse — scraping is enough for most modern machines. Washing soda in the main compartment, plus a splash of white vinegar or citric acid in the rinse-aid reservoir if your manual permits it, keeps glassware clear. Choose tablets without plastic film if you can, or refill tablets loose into a tin.

Storing, refilling and making it stick

Sustainable cleaning works best when it is beautifully organised, because then it feels like a pleasure rather than a penance. Keep a row of labelled glass bottles — spray, vinegar, soda solution — on a tray in the cupboard, and a kilner jar of bicarbonate of soda with a small scoop inside. Buy the basics in the largest sizes you can carry: vinegar by the five-litre container, bicarbonate and washing soda by the kilogram. Both cost pennies per use compared with branded sprays.

Find your nearest refill shop and take your own bottles; most will fill anything clean and dry. If there is not one nearby, many wholefood shops and farm shops now stock refills, and buying concentrates online in cardboard is the next best thing.

A starter kit for this week

If you would rather not overhaul everything at once, begin here:

• Decant white vinegar and bicarbonate of soda into labelled containers.
• Mix one all-purpose spray and use it for a fortnight before buying another.
• Drop your wash temperature to 30°C and add a tablespoon of washing soda.
• Put a washing-up bar by the sink and see how long it lasts.

Small, repeatable swaps beat grand gestures every time — and your drains, your waterways and your household budget will all notice the difference within a month.