The most common type of cotton is Upland cotton (Gossypium hirsutum), comprising nearly 90% of all cotton produced around the world. The remaining 10% is made up of two higher-quality cottons — Egyptian cotton and Pima cotton. Both of these cottons are actually the same species of “extra-long staple cotton” (Gossypium barbadense), with longer, silkier individual cotton fibers for a premium fabric that is both luxuriously soft and incredibly strong. While Egyptian cotton, when it's authentic, is a premium fabric that originates in the Nile River Valley, Pima cotton has a decidedly American story.
Cotton yarn is fabulous because it is easy to care for. If you are wondering how to wash cotton yarn, you can machine wash most types of cotton. You can also hand wash and lay flat to dry.
We suggest you follow the care instructions specific to the yarn you are using and when in doubt hand wash in tepid water using a mild soap. Do not agitate or twist. Lay garment flat on a towel and roll it up like a sleeping bag. You can let that sit from 15 minutes to the following day to ensure the towel wicks out as much moisture as possible. Then unroll, place on a clean, dry towel, shape and dry flat.