I get asked all the time if I pre-wash my fabrics before making the quilt top.  My mentor taught me to always wash the fabrics.  Now that being said, I don’t always wash my fabrics because I like the crisp look of fresh fabric.  Washing fabric is recommended for many reasons like removing any dirt, germs, excess dyes or shrinkage.  I say it is your quilt and your decision because you are the quilt-maker.  The most important decision is to have fun and enjoy the process!