From the store’s website:
If your project requires more than one skein of the same colorway, I recommend alternating skeins row by row to ensure the best results.
Knitted items can be machine washed up to 30 degrees Celcius (wool program, wool detergent, no fabric softener), but when washing for the first time, please handwash the item alone, with luke warm water. I honestly can only recommend handwashing any hand knit items!! This way you will be able to enjoy them for so much longer!