This article might give you some good advise
https://www.choice.com.au/shopping/everyday-shopping/clothing/articles/how-to-care-for-ugg-boots

I’d suggest a gentle hand wash with a wool detergent. Give them a quick spin and then put in the dryer on warm not hot.

I would spot clean them with sard

Don’t put them in the wash like I did… they shrink! I have ruined two pairs by doing so.

For the outside of mine I’ve used baby wipes as they don’t get too damp but the wipes picks up dirty. For inside I sprinkle bicarb soda in – shake it about and let is sit for a while. Tap majority out and use vacuum for the rest

I’m going to give mine a go in the washing machine ???? hopefully it refluffs the fur a bit!

I usally wipe them down with alcohol wipes such as dettol

Back in the seventies if I had any stains on my boots. I’d mix vinegar and warm water and use an old toothbrush to scrub lightly at the stain. Then let them dry normally. Don’t use a lot of Vinegar though. 1/4 to 3/4 cup warm water.

Before you wear ugg boots you spray them with a waterproof spray, then you can just use warm water with wool wash and sponge clean them.

Great question, one I’d like to know too

Have you checked the manufacturer’s website? This surely can’t be a unique problem. They might have washing instructions.

Use cold water and white vinegar.

Also; I stuff the ugg boots with newspaper before cleaning them with a moist cloth. The newspaper keeps the shape of the ugg boots. My ugg boots with a gentle approach to cleaning look brilliant.

For those that have washed in the washing machine, do you use cold or warm water? Thanks!

For those that have washed in the washing machine, do you use cold or warm water? Thanks!

After years of wearing I threw mine in the washing machine too. Not only did they get nice and clean, the fur kind of got revived after washing

I have always put mine in the washing machine on the normal cycle than dry in the sun or inside,they have never lost shape or size.

You are supposed to get them dry cleaned, but Ive hand washed with wool mix and it was fine.

I clean ugg boots with a moist cloth.