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14 ways to reduce food waste at home

Smarter ways to shop, store and cook your food, to save money and help the planet. 

composting veg scraps food waste
Last updated: 12 January 2024


Checked for accuracy by our qualified fact-checkers and verifiers. Find out more about fact-checking at CHOICE.

Need to know

  • Reducing your food waste could save your household up to $3800 a year
  • Don't go to the supermarket when you're hungry – you'll be more likely to buy food you don't need and won't eat
  • For health reasons, never eat food past its use-by date, even if it looks and smells OK

We've all been guilty of it – lobbing that leftover piece of lasagne or chucking that festy bit of cheese you never got around to eating (there's 'blue' and then there's 'bleurgh!'). 

Food waste mostly happens when we buy too much food, cook more than needed or don't store things properly. And it's a massive problem in Australia – according to food rescue organisation Oz Harvest, households throw away 3.1 million tonnes of edible food a yearAnd according to the government's National Food Waste Strategy, the cost of this waste to Australian households is $2200 to $3800 a year.

As many households struggle with the increasing cost of living, cutting down on the money we waste by throwing out food seems like a no-brainer. 

But it's not just your garbage bin or wallet that takes a hit. Food waste also takes a toll on the environment. As food waste decomposes in landfill, it releases methane – a greenhouse gas that is a big contributor to climate change. 

oz harvest food waste collection org

According to OzHarvest, 70% of the food we throw out is still edible. Image: OzHarvest.

"What we eat, and how we purchase and waste it, has a significant impact on the climate," says Annika Stott, sustainability strategist at OzHarvest. 

"While there's no silver bullet to tackle this global problem, there are many things we can be doing and it starts with getting into good habits."

Proper planning

1. Make a list

All good things start with a plan. By working out what's on the family menu for the week ahead, you'll be less likely to buy things you don't need (and won't use). 

"Take stock of food in your pantry and fridge before planning your meals for the week and use those items first as your inspiration," says Fiona Mair, CHOICE's home economist. 

And don't forget to consult your family calendar so you can plan accordingly – the nights you're eating out, who's home, and so on.

2. Get inspiration for your ingredients

Not sure how to use up that lonely zucchini? Many recipe websites let you search their databases by ingredient if you need a spark of culinary inspiration.  

shopping smart with a shopping list

Stick to your list so you won't buy more than you need.

Smarter shopping

3. Stick to your shopping list

When it comes to food waste, a few simple shifts in your shopping mindset can work wonders. For a start, stick to your list so you won't get tempted by deals that encourage you to buy more than you need. Or, if you can't resist a promotion, perhaps see if a friend or neighbour wants to go halves.  

4. Learn the lingo

Read food labels while out shopping to make sure you'll use ingredients in time. 'Best before' dates tell you when foods will start to lose quality, which means they are likely still good to eat or repurpose, whereas 'Use by' dates tell you when something must be eaten by. 

5. Shop smaller and more often

Buying all your fresh produce once a week means you run the risk of things going off before it's time to enjoy them. Making a mid-week supermarket pitstop to stock up on fresh fruit and vegies can help cut down on waste. 

Savvy storage

6. Store food better

Storing your food correctly can help extend shelf life and prevent waste. Try investing in quality reusable and sealable storage containers to keep food fresh.

Our top tips? Don't keep your bread in the fridge as it will get stale sooner (although you can always toast it or make bread crumbs). Tomatoes don't belong in the fridge either – the chill will affect their flavour. Keep them at room temperature instead. 

7. Make friends with your freezer

Your freezer is one of the best – and easiest – ways to preserve food (it can help to keep a list of what's in there). 

"Ripe bananas can be peeled, cut in half and placed in a freezer container," says Fiona. "They're great blended into smoothies – and there's no need to add ice."

It's also worth portioning up meat and fish before you freeze them, so you don't have to defrost them in bulk and risk wasting any down the line. 

using your freezer to store food

Use your freezer to preserve food.

Waste-conscious cooking

8. Stretch your ingredients

With a little extra love and time, you can get the most out of many of your favourite foods. For example, rather than throwing away potato peelings, you could make them into chips. That roast chicken carcass? Turn it into liquid gold (aka homemade stock) and freeze it for the next time you make soup or gravy.

9. Learn about portion sizes

Being aware of healthy portion sizes can help you shop and cook more efficiently. Try using an online calculator to nail the perfect amount for your household and avoid cooking more than you need.

10. Keep tabs on your fridge

Pencil in regular catch-ups with the contents of your fridge to make sure there's nothing lurking in its depths that a) you could use or b) that's kicking off a foetid funk. 

"Choose a day in the week where you use up leftover fruits and vegetables," advises Fiona. "I choose Sundays, just before a big shop, and usually make a soup or a stew with canned beans and vegetables that are looking a little weary." 

making the most of leftovers storage

Portion up your leftovers to eat the next day – or to pop in the freezer for a later date.

Love your leftovers 

11. Use up your leftovers

Portions to spare? Enjoy leftovers for lunch the next day – it will save waste AND your wallet! Alternatively, freeze portions of larger dishes such as lasagne for another time . 

12. Try a different approach

Don't be afraid to get creative with any leftovers. 

"Ready-rolled pastry in the freezer is such a handy ingredient to have when it comes to leftovers," says Fiona. "You can make savoury pies filled with leftover stews, bolognaise and casseroles, or use overripe fruits for making fruit pies." 

You could also fry any leftover vegies from your Sunday roast to make 'bubble and squeak', or whizz up any soft-leaf herbs with nuts, lemon, olive oil and garlic to make pesto. 

Dispose smarter

13. Embrace composting

"Landfills are incredibly inefficient and we must get organic matter out of our red bins," says Annika. One solution? Composting. 

Two popular options are the bokashi system, which involves microorganisms fermenting your waste into a liquid compost (perfect fodder for your houseplants), and worm composting. You can buy easy-to-use starter kits for both at your local hardware store. 

"Some local councils offer advice and assistance, or even discounted compost bins and worm farm products," adds Fiona.

14. Food waste collection

Some food items will inevitably end up in your bin. But the good news is that you can still dispose of it in better ways. A growing number of councils are providing kerbside collection services for food waste, so see what's available in your area. 

We care about accuracy. See something that's not quite right in this article? Let us know or read more about fact-checking at CHOICE.

Stock images: Getty, unless otherwise stated.