Save energy and water when using a dishwasher

If you’ve got a dishwasher in your kitchen, you’re probably already enjoying the convenience of letting it do the hard yakka. But did you know that dishwashers can use a fair bit of energy and water? That means there’s room for improvement when it comes to being more eco-friendly (and saving a few bucks on your bills). Whether you’re keen to reduce your carbon footprint or just want to make your home a bit greener, here are some top Aussie tips to save energy and water when using your dishwasher.

1. Only Run the Dishwasher When Full

This one’s a no-brainer! Just like you wouldn’t turn on the tap for one glass of water, don’t run your dishwasher unless it’s packed full. Dishwashers use a similar amount of water and energy regardless of whether they’re full or not. So, wait until it’s got a decent load in it — this way, you’re getting the most out of each wash. If you’ve got a smaller family or don’t generate enough dishes for a full load every day, consider running your dishwasher every second day instead of every day.

2. Choose the Eco Mode

Most modern dishwashers come with an “eco” or “energy-saving” mode. This setting uses less water and energy by adjusting the wash temperature and cycle time. Sure, it might take a bit longer, but it’ll save you in the long run, especially on your power bill. If you’re not in a rush, give it a go — your wallet (and the environment) will thank you.

3. Scrape, Don’t Rinse

If you’re one of those people who rinses plates before they go in the dishwasher, you might want to rethink that habit. Dishwashers are designed to handle food scraps, and pre-rinsing just wastes water. A good scrape with a knife or spatula is all that’s needed. Modern dishwashers have powerful jets that can blast away any leftover grub, so there’s no need to prewash your dishes. Not only will you save water, but you’ll also reduce the strain on your dishwasher’s filtration system.

4. Wash on Cold or Warm Settings

Hot water uses more energy, so try washing your dishes on a cooler setting. Many dishwashers have the option to wash with warm or even cold water for the majority of the cycle. You won’t notice much difference in cleanliness (as long as you’re using the right detergent), and you’ll save a fair bit of power. If you’ve got particularly dirty dishes, consider rinsing them lightly before loading, but again, skip the pre-rinsing.

5. Check the Dishwasher’s Filters and Spray Arms

This one’s simple but important. Regularly check the filters and spray arms in your dishwasher to make sure they’re not clogged with food bits. A clean filter means the dishwasher can run more efficiently, using less energy and water to get your dishes sparkling clean. It only takes a few minutes to do, and it’ll keep your dishwasher working at its best.

6. Avoid the “Heat Dry” Function

The “heat dry” function can be handy if you’re in a rush, but it uses extra electricity. If you’re keen to save energy, try opening the door and letting the dishes air dry instead. If it’s a sunny day, you can even pop the dishwasher outside to finish drying naturally. Alternatively, leave your dishes in the dishwasher with the door slightly ajar overnight, and they’ll be dry and ready to put away by morning.

7. Use the Right Detergent and Load Dishes Properly

It’s not just about how you use the dishwasher — it’s also about how you load it. Placing your plates, bowls, and cups properly helps water flow evenly, so your dishwasher doesn’t have to work as hard. Avoid overloading it (as tempting as it can be), and make sure that nothing’s blocking the spray arms. The right detergent also makes a big difference. Look for eco-friendly options that are both effective and better for the environment.

8. Consider Upgrading to an Energy-Efficient Model

If your dishwasher’s seen better days, it might be time to upgrade to a newer, more energy-efficient model. Modern dishwashers use much less water and power than older ones, so even though it’s an upfront investment, it could save you money in the long run. Look for dishwashers with a high Energy Star rating or check out appliances with water-saving features — your power bills and the planet will thank you.

9. Use a Shorter Cycle for Light Loads

Not every load of dishes needs a full cycle. For lightly soiled dishes or smaller loads, use a shorter wash cycle. Many dishwashers have a “quick wash” or “light wash” setting, which uses less water and energy. This is perfect for when you’re just cleaning a few cups or plates after dinner.

10. Time Your Wash for Off-Peak Hours

If your energy provider has off-peak rates, consider running your dishwasher during those hours. This way, you’re not only saving energy but also paying less for the power you’re using. Off-peak hours usually occur overnight or early in the morning, so set your dishwasher to start automatically when rates are lower.