My LQS favorite ladies told me, I'm a new quilter too, not to use harsh detergents. She said Tide and those sort of detergents are hard on cotton fabrics and any fabric. I bought a bottle of Ivory Snow that I keep just for washing my fabric. I've washed all of my fabric, so far, in the washer, regardless of the size of the pieces. I find that quilting in such a relaxing hobby/craft. I just love it. Good Luck! ! !