Okay, let’s break this down. The expert says submerging a brush can loosen the glue holding bristles to the handle, but that’s a half-truth. When I hand wash my brushes, I submerge only the bristles (never the handle junction) every single time. I’ve done this for three years, and none of my brushes have lost bristles or had glue issues. The laundry hack’s real problem is the machine’s agitation, not submergence itself. Lumping all submergence together as harmful is a clear logical gap. You can’t equate controlled, partial submersion with full submersion in a tumbling wash. That’s a false equivalence.