I'm finishing up my very first afghan

and can't wait to post a picture on the chat area with finished objects! This afghan is made out of 50% alpaca and 50% wool and the next one I will start is 100% merino wool. How do you wash your favorite items made with wool when the instructions simply say "hand wash"? I'm hoping there is a way to do it safely in the washing maching using cold water on a delicate cycle. What do you think?
Thanks for your help!