What is the best washable wool for crocheting blankets?

Answer 1

Best practices dictate that you choose a yarn based on the use of the blanket.

If for a baby, then a yarn that will survive staining and washing. If for pure decoration, then a yarn that will dazzle and reveal the glory of the handwork invested in it.

Answer 2

For wool to be machine washable, it must be mercerized. So look for a wool that says it is mercerized, is "superwash," or is machine washable. Which of these is actually the best depends on what matters to you about the yarn you work with. Some yarns are softer, stronger, textured or more artistically dyed, so the best is a personal preference.

Answer 3

You would need to specify the hook size, yarn name and thickness and pattern. It also depends on the size of blanket you want. Try making a six inch square, weighing it on good kitchen scales and estimating from there.