The grocery bill and where it actually goes

After housing, food is generally the largest household expense and, unlike housing, it is adjustable within weeks rather than years.

Where the money goes

The consistent findings from household spending analysis.

Food thrown away, which in many households is a substantial proportion of what is bought.

Prepared and portioned items, which carry a large premium for minutes of work.

Small pack sizes, where the unit price is frequently much higher and where the shelf label shows this and nobody looks.

Branded staples where own-brand is functionally identical.

Convenience purchases made because there was nothing in the house.

Drinks, snacks and confectionery, individually small and cumulatively large.

And takeaway and delivery, which is the single largest difference between households with similar diets.

The ten minutes that saves the most

A weekly routine.

Look at what is already in the house before planning anything, which prevents duplicate buying and identifies what needs using.

Plan four or five meals rather than seven, leaving slack for the week not going to plan.

Include one meal that requires nothing fresh, from the cupboard and freezer.

Write the list from the plan.

Buy what is on it.

This addresses overspending and waste simultaneously and takes less time than one trip back for something forgotten.

The shop itself

Designed to increase spending, which is not sinister and is deliberate.

Staples placed at the back so the whole shop is walked.

High-margin items at eye level.

Promotions at aisle ends, which are the most valuable positions and are not necessarily the best value.

Larger trolleys, which correlate with larger baskets.

The practical responses: shop with a list, having eaten, less frequently, and check unit prices rather than headline prices.

Unit pricing is displayed on shelf labels in most jurisdictions and is the single most useful piece of information in a supermarket.

Where the real savings are

In rough order.

Throwing less away, which is the largest and requires only planning and storage.

Cooking from ingredients rather than buying prepared, where the difference per meal is substantial.

Own-brand staples, which for many products are produced in the same facilities as branded ones.

Dried rather than tinned pulses, which are several times cheaper per portion.

Frozen vegetables and fruit, which are nutritionally comparable, cheaper and produce no waste.

Cheaper cuts of meat, which suit slow cooking and cost substantially less.

Seasonal produce.

And shopping at discount retailers and international grocers for staples, where prices for pulses, rice, spices and vegetables are frequently substantially lower.

Storage that extends life

Free and effective.

New items behind old ones when unpacking, which stops food expiring at the back.

Bread frozen and used as needed.

Herbs and asparagus upright in water.

Salad washed, dried thoroughly and stored with kitchen paper.

Potatoes and onions cool, dark and separate, and neither in the fridge.

Tomatoes and unripe fruit out of the fridge.

Apples and bananas away from other produce, since they accelerate ripening.

And a designated shelf for things approaching their limit, checked before cooking anything.

Use-by and best-before

A distinction that causes substantial waste.

Use-by is a safety instruction and should be observed, particularly for meat, fish, dairy and ready meals.

Best-before is a quality indication, and food is generally safe afterwards with some deterioration.

Confusion between the two is a documented contributor to household food waste, and several retailers have removed best-before dates from fresh produce for this reason.

The delivery question

Which cuts both ways.

Online grocery shopping removes impulse purchases for some people and enables them for others through recommendations and repeat baskets.

Delivery fees add cost and may be offset by reduced impulse buying and by not needing transport.

Comparing your own online and in-store spending over a few months is the only reliable test.

And meal kit and delivery services are convenient and cost substantially more per meal than ingredients.

Where advice becomes unhelpful

Worth stating.

Food advice frequently assumes a car, storage space, cooking facilities, time and energy — none of which are universal.

Shopping at cheaper retailers requires being able to reach them.

Bulk buying requires storage.

Cooking from ingredients requires time and equipment.

Which means that for households facing these constraints, the relevant actions are different: a benefits check, social tariffs, community food projects and food support services, all of which exist and are under-used.

And within any constraint, the largest saving remains throwing less away.

General information only, not financial advice. Contact a free advice service for a benefits check, and local food support services if you need them.