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The 30 Degree Wash Guide

Washing clothes at 30°C doesn’t just save energy for a brighter environment – it’s also kinder on your clothes. The great cleaning power of Persil detergents means they can produce brilliantly clean clothes even at low temperatures!


Eco-Friendly Tips For Washing At 30°C

Putting on a wash at 30°C instead of a higher temperature is a great way to save energy but it's important to have the right know-how for using a washing machine at 30°C to make sure you get great results — and avoid having to re-wash anything.

  • Always read the care label first, and sort your clothes by colour, temperature and fabric. The care label indicates the highest temperature the garment can be washed in without damaging it but it is perfectly OK to wash at a lower temperature to save energy.
  • After washing, don’t allow your clothes to lie around wet any longer than you need to - bacteria can grow in the moisture, leading to unpleasant smells.
  • If your items are stained, put them in the machine as soon as possible to make the stain easier to wash at 30°C. However, you'll need to wash badly stained garments separately at the maximum temperatures on their care labels, especially those with dried-on, strongly-coloured food, thick grease, heavy mud and grass stains. Otherwise, you could waste energy by washing them again.
  • For less dirty clothes, choose a 30°C cycle appropriate to the fabric, e.g. silk/wool, delicates, synthetics, or cotton. Choosing the wrong cycle may damage your clothes, and will not clean as effectively.
  • Washing part loads uses energy less efficiently than a full load, so try to collect together full loads that can use the same wash cycle. Do not overload the machine though, as at 30°C this is even more likely to result in a poor wash than at higher temperatures. Follow your machine manufacturer's advice on how full your machine should be loaded.
  • It’s important that you use the recommended amount of detergent, as shown on the pack, for your water hardness, machine size and how dirty your clothes are. The detergent has to work harder at lower temperatures, and using too little may mean you have to wash again, wasting energy and detergent
  • Help to ensure your wash is always effective with Persil 3in1 Capsules, which remove stains even in a lower-temperature wash. Plus, they come in a 100% recyclable tub, so you can reduce waste as well as energy.
  • If your machine has a separate selector for spin speed, use the highest spin the garment will tolerate, so that less drying is needed afterwards.
  • If the weather permits, dry your clothes outside on the line rather than tumble drying to save even more energy. For more tips on picking the best time to do your laundry with sustainability in mind, check out our advice on sustainable laundry habits here.

You can find additional advice on washing at 30°C at Cleanipedia.


Does A 30°C Wash Kill Bacteria?

Is it OK to wash clothes at 30°C, in terms of hygiene? While washing at 30°C won't get rid of all germs and bacteria alone, using Persil Bio means it is perfectly hygienic to wash a regular load of clothes at 30°C. However, there are exceptions to this rule:

  • About 2 to 3 times a year, do an empty wash at 60°C or higher with a bleach-containing Persil just to make sure bacteria don’t have a chance to grow in your machine causing unpleasant smells. (Use biocides safely. Always read the label and product information before use.)
  • Separate the clothes of any ill person in the household, and wash these at the maximum temperature shown on the care label, using Persil Bio powder or tablets. This will get rid of germs as effectively as possible, and help to prevent any spread of the infection.
  • Towels, bedsheet and dishcloths will need to be washed separately on a higher heat in order to disinfect them effectively. For more tips on the requirements of different items, check out our guide on how often to wash jeans, towels and more.


Will A 30°C Wash Protect Clothes From Damage?

Washing clothes at 30°C is one of the best ways to keep them in great condition for longer, as the lower temperature reduces the risk of shrinking and fading. However, it is still important to keep these care tips in mind for maintaining your favourite items:

  • Choose the appropriate Persil product for the wash load. Non-colourfast items need a Persil Colour Care product while delicates need Persil Silk & Wool liquid if they are not to be damaged. Consult the pack labels if in doubt, or give our Persil Careline a call – we’re here to help!
  • If your washing machine is shrinking clothes on 30°C wash cycles, double check that no other factors are causing this. If your clothes are marked as hand-wash only on the care label, then even a 30°C wash is likely to cause some damage.
  • Will colours run at 30°C? A low washing temperature does help to reduce colour run, but with certain materials and dyes there could still be some loss or transfer of colour. Even at lower temperatures, the usual colour rules apply: wash darks, brights and whites in separate loads, and help to reduce colour run with Persil Colour Protect.

How Long Does A 30°C Wash Take?

There is no single answer for this - it all depends on the wash cycle you've chosen on your washing machine. Always read the operating manual and choose the most appropriate cycle for the type of fabrics you're washing and how dirty they are.

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