On average, experts say shoppers take about six seconds to decide whether or not to put an item in their basket.
But for many of us, this consideration has become much longer, thanks to a hike in prices leaving us struggling to afford the basics.
The squeeze on UK households continues to tighten - as wages shrink for the third time in a decade and energy bills soar.
Pay rose 4.2 per cent in November but inflation hit 5.1 per cent so wages fell about one per cent in real terms.
This pinch on our budgets is expected to last many months - prompting warnings that many Brits are set to struggle.
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According to the ONS, the cost of an average basket of groceries rose by 4.2% in the year to December - and many of us have noticed the hike in cost.
The cost of fresh meat has soared - with the cost of lamb chops rising nearly 9% per kilo, from an average of £13.46 to £14.65.
Meanwhile, other household items such as milk, wholemeal or white bread are also more expensive.
And the price of a 500g tub of margarine has shot up 31%, from £1.35 to £1.77.
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Helen Dickinson of trade body British Retail Consortium warns: “The trajectory for consumer prices is very clear: they will continue to rise and at a faster rate.”
We’ve taken a look at some of the supermarket items that have risen the most in price - and which supermarkets are offering them the cheapest
List of items
-
Minced beef 500g 20% fat
Sainsbury’s - £2
Tesco - £1.79
Aldi - £1.79
-
Rump steak
Sainsbury’s - £2.51
Tesco - £3.80
Aldi - £2.59
-
Medium roasting joint of beef
Sainsbury’s - £10
Tesco - £10
Aldi - £6.62
-
Lamb chops (340g)
Sainsbury’s - £4.50
Tesco - £4.25
Aldi - £3.49
-
Pork loin
Sainsbury’s - £9.90 (1.8kg)
Tesco - £9.90 (1.8kg)
Aldi - £6.74 (1.5kg)
-
Back bacon (300g)
Sainsbury’s - £1.75
Tesco - £1.25
Aldi - £1.25
-
Pork sausages (454g)
Sainsbury’s - £1.70
Tesco - £1.70
Aldi - £1.25
-
Salmon fillets
Sainsbury’s - £3.30 (360g)
Tesco - £3.30 (330g)
Aldi - £3.99 (550g)
-
Tea bags (250g)
Sainsbury’s - £1.10
Tesco - £1.10
Aldi - 95p
-
Instant coffee (200g)
Sainsbury’s - £2.25
Tesco - £2
Aldi - £1.39
-
White sliced loaf (800g)
Sainsbury’s - 36p
Tesco - 59p
Aldi - 36p
Aldi - £1.25
-
Granulated sugar (1kg)
Sainsbury’s - 75p
Tesco - £1.70
Aldi - 65p
-
Wholemeal sliced loaf (800g)
Sainsbury’s - 36p
Tesco - 36p
Aldi - 36p
-
Spreadable butter (500g)
Sainsbury’s - £2.50
Tesco - £2.20
Aldi - 69p
-
Margarine/low fat spread (500g)
Sainsbury’s - £1
Tesco - 85p
Aldi - 69p
-
Pint of milk
Sainsbury’s - 60p
Tesco - 55p
Aldi - 60p
-
Potatoes (2.5kg)
Sainsbury’s - 91p
Tesco - 91p
Aldi - 89p
-
Cauliflower
Sainsbury’s - 79p
Tesco - 79p
Aldi - 79p
-
Mushrooms
Sainsbury’s - 86p (400g)
Tesco - 82p (380g)
Aldi - 79p (400g)
-
Cooking apples (1kg)
Sainsbury’s - £2
Tesco - £2
Aldi - £1.88
-
Pears (1kg)
Sainsbury’s - £2
Tesco - £2.70
Aldi - £1.14
-
Grapes (500g)
Sainsbury’s - £2
Tesco - £2
Aldi - £1.06
-
Tomatoes (500g)
Sainsbury’s - £1.09
Tesco - £1.09
Aldi - £1.09
-
Onions (1kg)
Aldi - 50p
Tesco - 85p
Sainsbury’s - £85p