Do not put felt into the dryer.
Can you machine wash felt. Most people prefer felting in the washing machine but not everyone has that optionThe great news is that you can felt by hand using your sink a bucket a washtub or even the bathtub. Allow extra material for shrinkage and wash by hand in warm or hot water. Whilst you can machine wash felt it is not the best way of cleaning them.
Anything stronger could destroy the wool fibers and ruin the hat. Felt is best washed by hand in a basin of cool water. I cant remember where I saw that post.
However you cant just dump the felt into the washing machine every time it gets a little dirty. Felt needs to be washed on a delicate cycle. Ive put my dolls in the washing machine at 30 degrees to test them and they come out just fine but I recommend hand washing to my customers just to be safe Posted at 830am Dec 30 2008 EST.
In some cases you can simply pull it out. A washing machine on the delicate cycle is a great alternative to prep large batches. Click here to learn how to make wool felt by hand.
You can distort the fabric and dull the color. Finish with a cold cycle rinse. Rinse in cold water and dry in a dryer with a fabric softener strip until slightly damp.
Use a setting on the machine that allows for a good wash without there being too much water. Hand Wash With Cold Water. Put the hat inside a garment bag before placing in the washer to protect it from the machines agitation.