How to Choose a Shaving Mug That Fits Your Brush
By Luxury Barbers London | Men's Grooming Products | Truefitt & Hill | Published: 2026-10-18
Category: Buying Guides
Find a shaving mug that fits your brush without forcing it. Learn the key measurements, material trade-offs, and why bone china mugs like those from Truefitt & Hill make a practical choice.
Quick answer
Choose a shaving mug with an inner diameter at least 10mm wider than your brush's knot size. Bone china mugs with a drainage reservoir, like Truefitt & Hill's hand-finished options, give you enough room to lather without crowding the bristles.
Why mug width matters more than depth
A mug that is too narrow forces the brush bristles against the wall, making it hard to build a full lather and potentially damaging the knot over time. A wider mug lets the brush move freely. Depth matters less for most shaving soaps, as you only need enough room to swirl the brush without the handle hitting the bottom.
Drainage and material trade-offs
Bone china feels smooth and retains heat well, which helps soften soap. A drainage reservoir, like the one in Truefitt & Hill mugs, prevents soap from sitting in water between shaves, extending its life. The trade-off is that bone china can chip if dropped, so it's best for a stationary setup rather than travel.
How to choose the right mug for your brush
- Measure your brush knot: Measure the diameter of the bristle bundle at the base (the knot). Standard brush knots range from 21mm to 30mm.
- Add 10mm for clearance: Your mug's inner diameter should be at least 10mm wider than the knot. A 24mm knot needs a mug at least 34mm wide inside. If you own multiple brushes, choose a mug that fits the largest one.
- Check the mug's inner diameter: Most shaving mug listings don't specify inner diameter. If the seller doesn't list it, ask for a measurement or look for a mug with a visibly wide opening. Bone china mugs like Truefitt & Hill's tend to have generous openings, but always verify.
Product facts
- Slate Shaving Mug: Hand-finished bone china mug designed to allow drainage into the reservoir below. The built-in drainage keeps your soap dry between shaves, preventing it from turning into a soggy mess.
Slate Shaving Mug - Navy Shaving Mug: Hand-finished bone china mug made in the UK, evoking a rustic charm. The classic navy colour adds a personal touch to your shave den while still providing the same functional drainage and width for your brush.
Navy Shaving Mug
Who should choose this
Best for
- Shavers with standard to medium brush knots (21-26mm)
- Those who want a classic, stationary shave mug with drainage
Not for
- Travel shavers who prefer a lightweight, unbreakable bowl
- Users with oversized brush knots (30mm+) who may need a wider scuttle or bowl
