personally I put my sweaters in a laundry bag (it's small bag safe for washers that you can put delicate items in so they don't get snagged and have more protection from color mixing) and then do a delicate cycle with cold water. in the washer I do a very small amount of detergent and some vinegar (vinegar helps with smells and i think is more gentle on clothes then softener) afterwards I hang dry them, I have a drying rack but you can hang them anywhere like the back of a chair for example

9

Sometimes handwash - put in a bucket or sink full of soapy water, swish and work it around with your hands. Do the same with clean water a few times to rinse, gently wring it out (maybe press it flat into the sink instead of twisting), than instead of hanging it with a clothes hanger lay it flat over a shower curtain rod to dry. Better if you have a fan to aim at it

7

Hand wash with woolite detergent in cold water, lay flat on a large towel, roll towel up like a yoga mat and press gently to remove excess water, remove from towel and lay flat to dry (very important to lay flat to dry)

2