Randy’s Black Label Glass, Metal & Ceramic Cleaner is one of the best cleaning products on the market. This cleaner works super fast and is extremely efficient at getting rid of resin, ash, and works wonders in hard to reach areas. What we love most is that it doesnt only clean glass, but also is safe to use on metal and ceramic pieces, making it a versatile and all-in-one cleaning product. All you have to do is pour some of the cleaner into your piece, shake it up a bit, and then let it soak for a few minutes, rinse it out with warm water and VOILA, you have a clean piece! Randy's Black Label Cleaner is the official glass cleaner proudly endorsed by Illadelph Glass.