If you've ever looked at a full set of bubble bags and wondered: Which micron bag catches what? You're not alone. A complete bubble bag set can include several different mesh sizes, commonly ranging from 220 micron down to 25 micron. Each bag plays a different role in separating plant material, resin heads, and smaller particles during ice-water extraction. But there's one important thing beginners should understand: Micron size is not a quality rating. A smaller number doesn