But when you put a lid on, the heat stays in the pot. It helps cook your food faster. Less time cooking results in less energy used. So yes, putting a lid on your pots and pans while cooking does make your food cook faster, saving energy.
Microwaves: When comes to cooking quickly and cheaply, microwaves are going to be your best friend. Cooking a potato in a conventional oven will use up to 10x as much energy as a microwave! This is because microwaves use less energy for every hour they're in use (fewer kilowatts per hour).
Depending on the size of your stove or oven and the length of time you're cooking, the amount of energy consumed can vary significantly. An electric stove, for example, can use between 1,000 and 3,000 watts while standard ovens can use between 2,000 and 5,000 watts of electricity.
Slow cooker
'In terms of appliances, it's one of most energy-efficient ways to cook. ' Even if you have it on all day, slowly braising beef shin, it will use 'about the same amount of energy as a lightbulb, cutting your energy consumption and saving a few bob in the process,' says Seymour.
It's true that using both ovens all the time uses more energy, but hopefully, you're not cooking multi-course meals for large groups every day. In the case of a regular meal or just a few people for dinner, use the smaller, top oven that requires less energy to heat.
Air fryers don't use a lot of electricity, with most requiring between 800 and 1800 watts (W) to run, though some large models need more. Air fryers also use less electricity than electric ovens, which typically use around 2,200 W to 5,000 W, and therefore cost more to run.
If possible, cook multiple dishes in your oven at once. Reheating food in the microwave or toaster oven is more efficient than heating your oven multiple times. Your oven's temperature drops about 25 degrees every time you open the door while cooking. Save energy on oven heating and air-conditioning by not peeking.
For example, an “electric oven is the most energy-intensive way of cooking”, while microwaves “are relatively cheap cooking appliances, as they only heat your food, rather than the air around it”. It's actually pretty easy to work out which appliances will aid your energy saving efforts.
Cooking with gas produces a lot of ambient heat, often requiring the use of air conditioners, a huge energy user.
Lids are there for a reason
Putting a lid on a saucepan really does save masses of energy. The lid stops all the steam you are creating from leaving the pan, and makes sure that heat is put to good use cooking the food. Some suggest it could cut the cost of cooking something on the hob by as much as 90%!
Using a lid on your pots or saucepan when you're cooking speeds up the cooking time. This is because the lid keeps the heat in the pan, where it's needed, rather than escaping into the air. This reduces the amount of energy required to cook your food.
Since heat circulates, keeping food covered lightly helps ensure that the dish reheats evenly, doesn't overcook and tastes better. The moist heat created when food is steamed or vented with a lid that's not too tight also helps destroy harmful bacteria.
A lot depends on the size and model of the air fryer, as well as how long it is used for. On average, an air fryer will use about 3-5 kWh of electricity per hour of use. This means that if you use your air fryer for an hour each day, you can expect it to add about $0.30-$0.50 to your monthly electric bill.
Stop using your oven
Microwaves, slow cookers, electric pressure cookers and air fryers all consume significantly less energy than ovens, so using these instead, if possible, will save you money.
According to the federal government's Energy Star program, which rates appliances based on their energy-efficiency, cooking or re-heating small portions of food in the microwave can save as much as 80 percent of the energy used to cook or warm them up in the oven.
Use a slow cooker for some meals instead of the oven as slow cookers are more energy efficient despite being used for longer periods of time. Batch cook meals and freeze or chill the leftovers so that they can later be reheated in the microwave.
According to the Energy Saving Trust, a slow cooker is one of the most energy efficient kitchen appliances. On average, a slow cooker draws about the same amount of energy as a standard electric light bulb. This means that despite being on for a longer period of time, a slow cooker actually uses very little energy.
Cooking Appliances
Induction is by far the most energy-efficient way to cook.
The water heater used to warm water to clean dishes may be an energy suck, but the dishwasher isn't. Dishwashers make up just 1 percent of residential electricity usage.