The kitchen is one of the biggest energy users in any home. Between cooking, dishwashing, and food storage, it’s easy for electricity and water bills to climb. But with a few simple changes, you can cut your energy use significantly—without sacrificing comfort, cleanliness, or convenience. Here are practical tips to help you save energy through smarter dishwashing and more efficient food storage.

Dishwashing – Small Habits, Big Savings

Dishwashing can be surprisingly energy-intensive, especially if you run the dishwasher half-empty or wash dishes under running hot water. Fortunately, a few mindful habits can make a big difference.

Use Your Dishwasher Efficiently

Modern dishwashers are designed to use less water and energy than washing by hand—but only if used correctly.

• Run full loads only. A half-full dishwasher uses nearly the same amount of energy as a full one.
• Choose the energy-saving or “eco” cycle. It may take longer, but it uses lower temperatures and less water overall.
• Skip pre-rinsing. Scrape off food scraps instead of rinsing under the tap. Most dishwashers can handle lightly soiled dishes without pre-washing.
• Clean the filter regularly. A clean filter helps the machine run efficiently and prevents energy waste.

If You Wash by Hand

If you prefer washing dishes manually, you can still save energy and water.

• Fill a basin or the sink with warm water instead of letting the faucet run.
• Use moderate water temperature. Most dish soaps work well in water around 100–110°F (40–45°C).
• Wash in order. Start with glasses and utensils, then move on to pots and pans. This keeps the water cleaner for longer.

Food Storage – Keep Food Fresh and Energy Use Low

Your refrigerator and freezer run 24/7, making them some of the biggest energy consumers in your home. With a few adjustments, you can keep your food fresh while lowering your electricity use.

Set the Right Temperature

• Refrigerator: 37–40°F (3–5°C) is ideal. Every degree colder can increase energy use by up to 5%.
• Freezer: 0°F (–18°C) is cold enough to keep food safe and fresh. Lower settings don’t improve preservation but do use more power.

Use an appliance thermometer to check accuracy—many built-in displays aren’t precise.

Organize Your Fridge Smartly

How you store food affects both freshness and energy efficiency.

• Keep dairy and meat on the lower shelves, where it’s coldest.
• Store fruits and vegetables in the crisper drawers to maintain humidity.
• Avoid overfilling. Air needs to circulate to maintain an even temperature.
• Let hot food cool before refrigerating. Placing hot dishes inside forces the fridge to work harder to cool them down.

Placement and Maintenance Matter

Where and how your appliances are placed can influence their energy use.

• Keep your fridge away from heat sources like ovens, dishwashers, or direct sunlight.
• Allow space around the appliance for proper ventilation.
• Defrost your freezer regularly. A thick layer of ice makes the compressor work harder.
• Clean the condenser coils (usually on the back or underneath) a couple of times a year to help the unit release heat efficiently.

Reduce Food Waste – It Saves Energy Too

When food goes to waste, so does all the energy used to grow, transport, and store it. Plan your meals, use leftovers creatively, and freeze extra portions in small containers. Reducing waste is good for your wallet and the planet.

Small Steps, Big Impact

Saving energy in the kitchen doesn’t require major investments—just mindful daily choices. By using your dishwasher efficiently, setting your fridge and freezer to the right temperatures, and storing food smartly, you can lower your energy consumption and make a meaningful difference for both the environment and your utility bills.