I wash everything in the washing machine on gentle cycle, double rinse, light spin (yes, my fancy washer has different levels of spin). I use a gentle detergent without dyes like Woolite. Never had an issue and the bricks are always sparkly clean at the end. I usually just air dry on a table. I also picked up my bags at Walmart. They have dedicates bags that are reasonably cheap, good quality, and I double bag…for safety! 😉
What I am looking for is a good way to remove fading. Washing doesn’t so it. I saw a peroxide bath suggestion that seems to take hours in the sunlight. Apparently not made for Western PA! Any other suggestions?