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Can your choice of supermarket really save you money? The answer is YES! The CHOICE team compared common household items from the three major chains and have revealed the cheapest supermarket in Australia.

Out of all our weekly expenses, grocery shopping always eats the most out of our budget. So I’m all for reducing our spending on household necessities, without compromising on quality.

Pick House Brands

A really great way to slash the grocery bill is to opt for the supermarket or house brands. In a recent house brand comparison, CHOICE shared that Aldi’s house brand products came tops for quality. And when it comes to cost, CHOICE also discovered that a basket of supermarket house brands was up to 40% cheaper than the equivalent branded products.

Cheapest Branded Products

While I generally can’t really tell the difference between the supermarket house item and the often more expensive branded product, some shoppers just prefer to get the ‘real thing’. So if you’re this kind of shopper, you’ll be really interested to find out the identity of the cheapest supermarket in Australia.

CHOICE conducted a price comparison survey of more than 150 brand name products at Aldi, Coles and Woolworths to find out where to get the best deal on well-known brands such as Cadbury, Kleenex, and Uncle Tobys.

The Cheapest Supermarket…

And the winner is (drumroll, please)…..

ALDI!

“Our price comparison found that across the range of 152 products we priced, brand name products were, on average, cheaper by 20% at Aldi compared to Coles and Woolworths,” says CHOICE Food Editor, Rachel Clemons.

“Some products did cost the same at Aldi as they did at Coles and Woolworths, and some were more expensive, but the majority of brand name products we surveyed were cheaper at Aldi. Savings went up to as much as 57%,” says Clemons.

15 Best Value Products

The CHOICE team identified 15 products which would give you the biggest savings – at least 35% – if you opt to buy them at Aldi.

The list of the best value products at the cheapest supermarket:

– Haribo Sweet & Sour Bears: 48% – Coles 57% – Woolworths

– Morning Fresh Lemon Dishwashing Liquid: 52%

– McVitie’s Go Ahead! Crispy Slices Apple Flavoured: 50%

– Kleenex Complete Clean Toilet Tissue: 47%

– Nescafe Blend 43: 47%

– Colgate Optic White: 44%

– Coca Cola Coke/Coke No Sugar: 43%

– Nestle Milo: 40%

– Cadbury Favourites: 40%

– Dove Nourishing Body Wash Restoring with Coconut & Almond Oil: 38%

– Always Fresh Sundried Tomatoes: 38%

– Haribo Goldbears: 25% – Coles 38% – Woolworths

– V Energy Drink (4-pack cans): 36%

– Cadbury Dairy Milk Chocolate: 35%

– Mars/Snickers Share Pack: 35%

Importance Of Pack Sizes & Unit Prices

Pay attention to pack sizes and unit prices. When you’re sleuthing for bargains, you need to compare apples with apples, and that means taking a closer look at the unit costs.

Be aware that the pack sizes of national brands at Aldi are often different. Of the 152 products the CHOICE team priced, 36 were smaller and 19 larger at Aldi than at Coles and Woolworths – that’s 36% of packs that are different sizes.

A jar of Bega Peanut Butter is 755g at Aldi, but weighs in at 780g at Coles and Woolies, for example. And a box of Arnott’s Barbecue Shapes is 250g at Aldi, but has a significantly smaller pack size of only 175g at Coles and Woolies.

There can even be differences between pack sizes stocked in Coles and Woolies. There’s the 280g Vegemite that’s “only at Woolworths”. Or Kellogg’s Corn Flakes that come in 220g or 725g packs at Coles but 220g, 450g and 920g packs at Woolworths. A bit confusing isn’t it.

CHOICE did a bit of detective work and discovered that these varying pack sizes were driven based on differing consumer needs or popularity. But whatever the real reason is, it makes it really tricky for shoppers to compare products to find the cheapest supermarket.

“Essentially, you can’t assume a lower price tag for a national brand at one retailer means you’re getting better value – you could just be getting less product,” says CHOICE’s Clemons.

The examples below demonstrate how important it is to have access to unit pricing when you’re shopping, so you can compare value at a glance.

price pack comparison

The Queensland Consumers Association (QCA), along with CHOICE, has long campaigned for effective unit pricing (pricing per unit of measure) that allows people to make more informed choices and get the best value when shopping for groceries – regardless of retailer, product or pack size.

“It’s important to look at unit prices, not just selling prices, when choosing what to buy,” says The Queensland Consumers Association (QCA) spokesperson Ian Jarratt, who has been campaigning for effective unit pricing to help shoppers make more informed choices and to get the best value.

Do you agree that Aldi is the cheapest supermarket in Australia? Tell us in the comments below.

  • If you could do a full shop there, but with 2 toddlers I’m not going to every different supermarket. I just try to shop the sales

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  • Wish we had an Aldi here. I dont agree that the supermarket brands are as good as the name brands. Ive tried lots of tge supermarket brands over the years and they’re definitely lacking AND theyre noy Australian owned or made, which puts me off. I regularly buy supermarket brand flour, sugar and laundry detergent. That’s it!

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  • We swapped from a Coles shop to aldi and saved $75 a week. Yes we still go to woollies and Coles for a couple of items but if you buy these when on sale and buy a few you don’t even have to go every week.

    We recently moved from North East Vic to south West Vic and were surprise by the difference between woollies and Coles. Up in the north east Coles was by far cheaper than woollies but down in the south west Coles is expensive and woollies cheaper.

    In saying that I use Aldi as my base and then check specials at Coles and Woolworths. Once a month I’ll need to go to all three, a couple times I’ll need 2 but I do get away with only doing Aldi as well now that I stock up on my other items when they are half price

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  • Honestly. don’t just believe what these articles say. Do your own comparison shop. I regularly do a comparison between Coles & Woolworths online and at least once a year TRY to do a shop at Aldi. I don’t like Aldi because I can’t get everything as there are somethings brand specific that I can only get elsewhere, and those I always buy on their specials. There are some things I will admit are cheaper at Aldi for basic pantry staples, but when 80% of my shop is fresh produce and Aldi isn’t cheaper. If you have the luxury, then shop between them all to get your best value

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  • What I’m surprised about is that people are claiming ALDI as an Australia-wide supermarket “big 3” with Coles and Woollies!
    Honestly I live in a WA regional centre and we have 2 Coles and 3 Woollies, but definitely no ALDI. It’s not even remotely an option because ALDI have yet to show any interest beyond Perth.
    Not going to be shopping there anytime soon – for obvious reasons. The one time I was in Perth and went into one to see what all the hype was about I left very underwhelmed and empty handed. Sorry not an ALDI fan at all.

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  • I hadn’t realised there was such a difference between brand products at Aldi and Coles/Woolworths. I’m fortunate enough to have all three in the same centre so can shop at all.

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  • I love Aldi (and their amazing weekly specials!).
    Packing my own bags is never fun but so worth the savings each week!

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  • If it is basic pantry items – Aldi is really the place to go. But for those that you want the brand – I go for coles next. i think woolies usually is the priciest option among these three?

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  • What about Spudshed?! I found them even cheaper

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  • I’m surprised but I find it hard to find some brands in Aldi so will still shop at the major 2 for convenience of getting everything in one place

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  • This result doesn’t surprise me but it’s still not enough of a saving for me to shop at Aldi.

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  • Aldi might be the cheapest but the middle isle makes you buy so much stuff.

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  • What an informative article, I didn’t realise that the stores all had different pack sizes. It makes comparing products more difficult. I do like Aldi, but I can do a quick online comparison because they don’t have everything listed on line, which is really annoying.

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  • Not surprised Aldi is the cheapest overall. I never shop there. I prefer to buy specials at my local independent stores.

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  • I’m not surprised. My money definitely goes further at Aldi, their brands are just as good and so is their range. I do however, go into Coles for certain things I can’t get at Aldi

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  • I do agree Aldi has some better prices! I like to look at all three supermarkets plus Costco and then I shop, I also prefer a green grocer and proper butchers. When I do shop from all over I always come in under budget. If I end up in Coles only then I blow my grocery budget and am waiting till the next pay. It’s actually crazy!

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  • The differing pack sizes are so confusing! Have a few things I regularly buy that are cheaper At each of the three stores so I do little shops to fill up. Here and there on those things in between the big shops

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  • I don’t shop Aldi as it’s a German chain


    • And I don’t buy any of those best value products

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  • Not surprised by the results for Aldi being cheaper

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  • Aldi can definitely be cheaper than other places for some things

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