<human>:  Should wool be hand washed only?
<bot>: Yes, wool should be hand washed only. Felting is a process through which wool is shaped and shrunken through agitation in soapy water. Felting will often occur if you put a wool item in the washer. So wool should be hand washed only. Felting is a process through which wool is shaped and shrunken through agitation in soapy water.