Solved

How To Wash A Duvet?

QWqwerty
Asked about 19 years ago 10,137 views
0

I'm interested to learn how to wash a duvet, not a duvet cover. Previously I've washed my duvet in the bath-tub but it never seems to get it totally white. What's the best way to wash it? Is it possible to cram it into the washing machine and hope the water reduces its volume? Or simply use the bath-tub with washing powder?

Solution Summary

AI-generated from this discussion

This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.

Washing a duvet needs enough drum space; launderette often recommended

The problem
The question was how best to wash an actual duvet rather than a duvet cover, and whether it could be put in a domestic washing machine or washed in the bath. The concern was getting it properly clean and avoiding overloading the machine.
Likely cause
The main issue discussed was insufficient drum capacity. Several replies said a duvet needs room to move or it will sit in one lump and not wash properly. A king-size duvet was reported to wash acceptably in one 7kg machine with an unusually large drum, but a 6kg machine was said to be too tight. Smaller or tightly packed drums were considered unsuitable.
What fixed it
The accepted advice was to use a large-capacity machine, with 7kg as a minimum for some king-size duvets and 8kg or larger considered safer, and not to force a large duvet into an ordinary 5kg machine. If washing in the bath, soaking for several hours with detergent was suggested. Multiple posters recommended using a launderette because the larger washers and dryers make the job easier. Exact washing method depends on the duvet’s care instructions.
Checks to try
  • Check whether the duvet will fit without being forced into the drum
  • Check that there is enough space for the duvet to fall and move during the wash
  • Check the wash instructions on the duvet before choosing water temperature or detergent
Parts or tools mentioned
  • Large-capacity washing machine
  • Bath
  • Detergent
  • Launderette machine

Safety: Do not overload the washing machine. Further diagnosis should be carried out by a suitably qualified appliance engineer.

Cause identifiedGenerated 4 Aug 2026 · AI summaries can make mistakes — read the full thread below.
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9 Answers

Accepted Answer
0
WH
WhitegoodshelpVerified Engineer
Answered about 19 years ago

To wash a duvet you really need a large drum capacity. We have washed our king sized duvet perfectly OK in a 7kg drum washing machine (winter and summer duvets) We have recently replaced it with a 6kg capacity washing machine and it was such a tight squeeze we won't try it again. It did wash, but went round in one big lump and made squeaking noises as it caught on the door seal.

My experience is that a minimum of 7kg drum capacity is required for a king size duvet but the machine I used was a Dyson Contra rotating drum, which I now believe is larger than other washing machines claiming a 7Kg drum. To be on the safe side I should advise anyone for whom washing a king sized quilt is important may be better looking at an 8Kg drum or larger. There's a chance that you might just about get away with a double duvet in a 7 kg drum washing machine but I would not attempt to force a large duvet into an ordinary (5kg) washing machine. Single duvets may fair better but caution is needed ( Am I overloading my washing machine? ) Once wet, the duvet would shrink in size somewhat but if you have to force it in it's not likely to shrink enough.

If using biological detergent and washing one in the bath I would soak it for a good few hours. If washing a white duvet I would use normal detergent containing bleaching agents - not liquid or "colour-friendly" detergents and I would use hand hot water (unless wash instructions said otherwise).

Whitegoods Help — appliance repair expert and forum host.
0
SA
sanspall
Answered about 19 years ago

I have always gone to a launderette where they have the enormous washing machines, much less hassle than in the bath!

0
TI
Tinderbox (UK)
Answered over 15 years ago

I read when washing a duvet to use an non-biological power as the bleach will give a better clean and maybe kill a few more bacteria as a 40c wash is the max temp for most duvets, also it`s not going to affect the colour as it`s white anyway, if you use biological powder any un-rinsed enzymes may be left in the duvet, and maybe smell or whatever.

This might be total tosh, but it sounds good

0
KE
kee
Answered about 12 years ago

Your pic looks more like a duvet cover than a duvet. I'm surprised you say you can get a king-size in a 7kg machine, as I just tried to put a single duvet in my 8kg AEG L75480WD and it only just gets in, it's pretty rammed. Will it wash safely if there's no spare space?

Also is the theory of the benefit of putting tennis balls in the dryer with your pillows true?

Is it also true you should only half fill the washer/dryer if you're drying?

0
JE
JetSystem
Answered about 12 years ago

I take mine to the laundrette and use a hot wash. Commercial washing machines have no heat element, so a hot wash is whatever temp the hot tap water is in the building, usually between 50 and 70 degrees, which is fine for washing a duvet. I use bio powder as this contains both oxygen based bleaching agents and enzymes.

Not only is it far easier than trying to cram it into a domestic washer, but the laundrette dryers are enourmous, so you can have the whole thing washed and dried in about 2 hours.

1
JE
JetSystem
Answered about 12 years ago

Those Dyson drums were enourmous! They were more like the drums found in 9kg LG washers. Look at the Dyson drum and then look at the supposed 7kg drum in a modern Hotpoint - the difference is astounding.

0
JE
JetSystem
Answered about 12 years ago

The tennis ball theory does work. It stops things getting tangled and allows the hot air to blow through the items so that they are evenly dried.

Yes, the drying capacity of a washer/dryer is usually half the wash capacity.

0
WH
WhitegoodshelpVerified Engineer
Answered about 12 years ago

Sorry for the delay in replying. I've been unable to confirm if it's an actual duvet or just the cover as we can't remember. I too the photo about 9 years ago now. If it is a duvet it is clearly a thin one. As you've commented since this post though, the Dyson 7 Kg drum is probably a true 7 Kg drum but most other manufacturers use tricks to claim 7Kg when in fact they are smaller. I believe Miele are the only other one I know of to quote true drum sizes (and possibly the ISE10)

You are right that without space to fall into the machine won't wash an item properly. It sounds like the drum isn't big enough to cope with yours.

Whitegoods Help — appliance repair expert and forum host.
0
MA
Mary McElroy
Answered about 11 years ago

I've just washed a double duck down and feather duvet in my Miele using Biological detergent at 40 degrees. It was filthy, having been used by a student for a year.

I dried it on the clothes line, rotating it several times and shaking it well. I used a clothes prop to have the line as high as possible,and I chose a sunny day. I left it over the bannister that night and put it out again the next day.

it came out really fresh. So pleased I didn't throw it out.

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