A Question About Yarn and Blocking

If a yarn is only 15% natural fiber and 85% acrylic, should it be blocked when the project is finished? Should it be 50% natural fiber or more to be blocked?

A yarn I saw recently was labeled alpaca but it was only 15% alpaca…which doesn’t really sound like much to me.

Just wash and dry it according to the label instructions, that should be all the blocking it needs to even out the sts. If you can dry it in the dryer, that’ll relax them a little too. You don’t have to stretch and pin to block except for very light lacey items.