Missi...I never prewash my jelly or charms....I love the crispness to them..and, they survived!!:))My mom is a prewasher...never me. Read a book where both partners in quilting both did the opposite too..one prewashed and one didn't-always. And, it was a preference to how it felt to them when they worked on the blocks, etc. Neither had a true arguement to why the one should always be done other then just a preference. I know some think it is a 'have-to' to prewash...and, that is fine...but, not this gal (I'm always cross'n the yellow line!)LOL You will be fine...and, You will LOVE the outcome and look of this jelly roll. They are so great because you have every piece of a line of a fabric run. Keep us posted on your great works over there! SKeat