The choice between a hot and cold laundry wash is a decision most of us make every day.
In Australia, washing clothes, towels, and sheets in cold water is the most popular choice. But is one temperature actually better than the other for cleanliness and garment care?
In an interview with ABC, Choice whitegoods expert Ashleigh Iredale said that thanks to advancements in washing machine technology, and enzyme-based detergents, the difference between a hot and cold was is minimal.
“You do get a slight performance improvement washing in warm water, but we’ve found it’s not worth the extra energy cost. If you have solar hot water or electricity then washing in hot water is free, but it might not be great for all your clothes,” he said.
Pros and cons of washing with cold water
Washing in cold water is more gentle on your clothes and can keep them looking newer for longer. Cold water will be less likely to shrink, discolour, fade or ruin clothes and it can also reduce wrinkles, which will save time and energy ironing later. Washing in cold water can also remove stains and is perfect for delicate, dark and colourful fabrics.
However, for some fabrics such as knits and synthetic fabrics, cold water isn’t the best option. Cold water doesn’t sanitise fabrics while washing, so if someone is sick, washing in cold won’t necessarily help stop the spread of germs like hot water would.
Pros and cons of washing with hot water
Hot water can be damaging to clothing fibres, resulting in faster deterioration and shedding of microfibre particles. Stains do not come out as easily in warm and hot water and it can actually have the adverse effect, setting the stains into the fabric. Hot water is likely to shrink, wrinkle and fade certain fabrics, and it is more expensive to use hot water.
if sanitising your clothes is the goal, use hot water as this will stop the spread of any germs and certain fabrics, such as spandex, nylon, polyester and rayon blends are easier to wash in warm water.
How do I know whether to wash in hot or cold water?
Check the label if you’re unsure whether to use hot or cold water to wash your clothes, linen or towels.
How to get a good wash at any temperature
- Use a high-quality laundry detergent
- Clean your washing machine regularly if you always use a cold wash
- Run a hot water cycle every now and then to remove detergent residue and mould
- If members of the family are sick, it’s better to use a ‘hygiene wash’ setting on your machine with warm water
- Cold water will reduce clothes fading in colour
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