Fiona Beckett: Yes you can



Sure you can feed your family for £50 a week, just as you can restrict yourself to 1,200 calories a day if you need to. But it takes willpower, and supermarkets aren't always the best places to exercise that. Everything – well, practically everything – will have to be pre-planned. You can't afford to be deflected by impulse buys, though it's worth keeping, say, a £5 float to take advantage of offers on non-perishable foods like pasta and tinned tuna and for stocking up on basics like herbs and spices (which are cheaper in independent shops than supermarkets).

You'll have to stop pandering to your kids. On this kind of budget you can't afford to let everyone eat what they like whenever they feel like it. Shared mealtimes are easier to control than 24/7 fridge raiding. Set whatever you don't need aside for another meal rather than leaving it on the side for scavengers to dip into. Insist that kids ask you when they want a snack rather than just helping themselves. (Frugality, I'm afraid, requires a degree of fascism that doesn't come easily to today's laid-back parents.)

Forget heavily advertised brands (despite moans from the kids) and buy – or at least try – own label. Discover when your nearest supermarket tends to have reductions. I used to find the one at my local petrol station would virtually give away unsold meat and veg on a Sunday night.

The main challenge on a low budget is keeping some variety in your diet. If you build a couple of days round mince (say, a spag bol one night and chilli con carne the next), you could then switch to seafood like frozen prawns, veg and rice for the next two to three days. Forget the idea that every meal has to have expensive lumps of protein – do as our parents and grandparents did, and pad out meals with carbs and puddings.

Not all the old wisdom applies though, it has to be said. Veg aren't always – sadly – cheaper in season. (Frozen berries are almost always cheaper than fresh, for instance.) "Cheap" cuts can be anything but. It can, bizarrely, be more economical to buy steak on special offer than mince, if you stretch it by slicing it thinly. Sometimes ready-made foods like cakes or puds are cheaper than baking them yourself (though in general anything pre-sliced, grated or cubed is a rip-off).

And remember that no one shop has all the bargains. You can bet your life that if Sainsbury's – or any other supermarket – is promoting products to make them look as cheap as chips, they'll be marking up other lines that will cost you less elsewhere. The old adage that does still apply is "shop around".

Fiona Beckett is author of The Frugal Cook, published by Absolute Press. theguardian.com/profile/fionabeckett

Simon Majumdar: No you can't



In 1994, Sainsbury's ran a campaign promising to feed a family of four for less than £50 a week. I had my doubts then, and I have them even more now that the company is offering almost exactly the same deal some 17 years later.

The simple fact is, that while it may be feasible to feed a family of four for £50, it is, I believe, almost impossible to do it well for such a lowly sum. One may be able to meet people's basic nutritional needs, but it will give little variety in the diet and extract all joy from the experience of dining.

Some might suggest that, if people are financially stretched, they should be prepared to forgo certain pleasures to make ends meet. However, for me, such a notion is only a short remove from Ebenezer Scrooge's impassioned cry of "are there no workhouses?" and has no place in this discussion.

A £50 a week budget equates to £1.79 per person, per day. This amount is less than is allocated to guests of Her Majesty's Prisons and only marginally more than is spent on the daily meals of the majority of National Health Service patients. While one doesn't hear of too many people dying of malnutrition in hospitals and prisons, one also doesn't hear of too many people clamouring to change places with them when dinner time comes around.

It is possible, of course, to wheel out some well-intentioned nutritionist to talk about "wholesome soups" or "hearty bowls of pasta" in defence of the notion that it is possible to eat well, cheaply. However, anyone who has ever spent time subsisting as a student will testify that, while such dishes might do the job of filling a person's stomach, the regular arrival of bowls of soup or dishes of spaghetti bolognese, night after night, can be enough to drive a person to bloody murder.

Such a view also labours under the incorrect assumption that while people may be economically troubled, they can still find the time to seek out cheap, fresh ingredients and labour over a hot stove to make sure that their families receive all they need from their three square meals a day. If there ever was an era when such a thing was true, it is certainly not the case today when both parents are probably holding down jobs to pay the bills.

Sainsbury's latest promotion might seem like one possible solution to the issue. However, to me, it confirms only two things. One, that marketing people are incapable of ever coming up with new ideas. And, more worryingly, if the cost of this basket of food, meant to feed two adults and their offspring, remains the same nearly two decades on, there must be serious concerns about the quality.

Whatever one thinks of our supermarkets, few people would ever consider them exemplars of altruism. For food to be sold at this price must mean that corners have been cut, costs have been shaved, and producers have been squeezed. The cynic in me can't help thinking that all three are probably the case.

Accepting this heady combination of uncertain food quality, a lack of variety and little enjoyment, it may well be possible to physically sustain a family of four people on the meagre sum of £50 a week.

But, I have to admit, if I was in such a situation, Her Majesty's Prisons might begin to look pretty appealing.

Simon Majumdar is the co-writer of Dos Hermanos, one of the UK's most widely read food blogs. theguardian.com/profile/simon-majumdar

Richard Ehrlich: Well, maybe



It would certainly be possible to feed a hypothetical family of four on a budget of £50 a week – the big question is whether it would be any fun.

Before going any further, I have to add that all bets are off if the household includes teenage boys. The UK Department of Health's Estimated Average Requirements call for a daily calorie intake of 1,940 calories per day for women and 2,550 for men. Teenage boys seem to need at least 5,000 or they start eating their own fingers.

For the rest of us, £12.50 a week is just about do-able. It means avoiding many processed and pre-prepared foods: ready-meals for four can devour your whole daily budget. Favour porridge over boxed breakfast cereals, cheap seasonal veg over fancy salad leaves or sugar snap peas from Kenya, fresh fruit over fruit juice.

It also means relying on cheap sources of protein. But remember that you don't need much protein, far less than most omnivores eat. Try to use meat as a seasoning instead of the main event of the meal: four rashers of top-notch bacon will flavour a whole pot of beans or a pasta sauce.

If you sometimes need an identifiable piece of meat on the plate, forget about steaks and chops. Cook stews from cheaper, tougher cuts such as shin of beef or knuckle of pork. Chicken legs are cheaper (and tastier) than breasts, and whole chickens, which can produce four meals for four people at a stretch, are cheaper still.

A major cost-cutting option lies open to those who have a big garden or an allotment: grow your own vegetables. Even if you only have space for a few pots, growing herbs can save you a pound or two a week.

And a final cost-cutting strategy: don't assume supermarkets are cheap. When I compared prices on five items at my local Sainsbury's with the fruit and veg stall across the road, the stall was cheaper on three items, the same on one, and more expensive on one. But the loose carrots at Sainsbury's (35p/kg, compared with 77p/kg at the stall) were as flexible as garden hoses. Fresh ginger at the stall was £3.30/kg as opposed to £10.72 chez Sainsbury's.

But back to the F-word: will £50 be fun? It can certainly be made less painful by deploying cheap seasonings that deliver maximum pleasure. Bags of spices bought from an Asian shop cost a pound or so and last for many months. A knob of ginger, a fresh chilli, a head of garlic, a lemon – all cost little and can be used with anything.

Ultimately, your fun-quotient will be determined by your enthusiasm for inexpensive starchy foods: potatoes, pasta, rice, pulses. Well used, these deliver great flavour at minimal expense. Macaroni cheese, curried lentils, any of numerous dishes combining a lot of rice and a little chicken or lamb – all can be made for as little as 30-50p a head.

I know I spend more than £50 a week when there are four of us in the house, probably more like £80. If I had to cut down to £50, I could probably do it. But I love macaroni cheese.

Richard Ehrlich's latest book is '80 Recipes for Your Pressure Cooker', published by Kyle Cathie, £12.99. theguardian.com/profile/richardehrlich