The type of yarn greatly affects the blocking process and the permanence of the blocked shape. Natural fibers respond best to blocking.
How to Block Crochet: Wet or Steam Blocking Tutorial
The Best Way to Block Acrylic Yarn – This Actually Works – Sew Homey
Steam Blocking Acrylic: Full Steam Ahead? or Stumbling Block?
A guide to blocking your knitting – Knit with Henni
Is Crochet Blocking Permanent?
Is Crochet Blocking Permanent?
Blocking Acrylic Yarn with Steam
The Best Way to Block Acrylic Yarn – This Actually Works – Sew Homey
Steam Blocking Acrylic: Full Steam Ahead? or Stumbling Block?
Blocking Crochet & Blocking Knitting Projects: What You Need to Know