How Do I Clean a Serape?

If it's acrylic, it won't run. If it's wool, it still might not run. If you can find a loose strand and clip it, hold the
strand in a pair of pliers and light it with a match.

If it melts, it's acrylic. If it smells like burning hair and just goes out, it's at least partly wool. Wool can be dyed and not run, or it can run if dyes weren't rinsed clear before weaving. If it's in brown and earth tones, probably natural colors and won't run. If brightly colored as with reds, etc. test a small area with soap and water, and blot on towel. If it runs, have item dry cleaned. If it doesn't, soak in a tub of luke warm water with shampoo or liquid detergent as you would for a wool sweater. Gently squeeze out water and rinse. May need to do that more than once if you've worn it a long time without washing. When clean, take in large container to washing machine, distribute evenly in washer and move dial to spin. Let water spin out and dry on towel, or over chair or shower curtain rod, depending on design/shape of garment.