I stuff mine into my regular washing machine with some Tide and some OxyClean and wash it on HOT and then throw it in the dryer with a couple of dryer sheets and dry it on HOT. This is just my technique and it works for me. I haven't been disappointed yet and I've made quite a few quilts. No running, no bleeding and they come out so soft and fresh. I love it. AND, I love the vintage look after a good washing. I don't prewash anything, and so far, so good (KNOCK ON WOOD)!!!!