The Brush Blog

What Is the Most Innovative and Best Climbing Brush of 2025?
What Is the Most Innovative and Best Climbing Brush of 2025?
I’ve been nerding out on brushes all season, testing, borrowing from friends, and doom-scrolling tiny boar-hair photos at midnight. Here’s a plain, no-nonsense roundup from a climber’s perspective.    Strength... Read more...
Air Quality in Climbing Gyms: Chalk, Rubber and Smarter Brushing
Air Quality in Climbing Gyms: Chalk, Rubber and Smarter Brushing
Gyms get busy and so does the air. Beyond chalk dust, recent studies find rubber-derived chemicals from climbing shoes in indoor air and settled dust. In this post I break... Read more...
Photo by Patrick Pahlke on Unsplash, a boar walking in the woods.
Boar vs. Nylon Bristles: Which Climbing Brush Should You Use?
Boar-hair vs. plastic (nylon) bristles compared: grip, rock safety, indoor use, durability, and when to choose each for cleaner holds. Read more...