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Short answer: For one or two cups and for travel, the Hario Mini-Slim+ (MSS-1DTB, $40 at Hario USA) is the cheaper, slimmer choice. It holds 24 g of grounds. For grinding several cups at once at home, the Skerton Pro (MMCS-2B, $58.50) holds 100 g of beans and has a glass catch jar.
How we compare: every spec in this article comes from official manufacturer specifications and product pages (starting with Hario USA’s official Mini-Slim+ page and Skerton Pro page), all listed under Sources below. We don’t run hands-on tests, and if a spec isn’t published, we say so. Last updated: October 2026.
I live in Japan, where a hand grinder is often the second piece of coffee gear people buy after a dripper. These are Hario’s two best-known ceramic burr models at the lower end of its range.
I haven’t tested these side by side. Everything below comes from the manufacturers’ official product pages, linked at the end. If a spec isn’t published, I say so instead of guessing.
Quick Comparison Table
| Spec | Hario Mini-Slim+ (MSS-1DTB) | Hario Skerton Pro (MMCS-2B) |
|---|---|---|
| Capacity | Coffee grounds 24 g | Coffee grounds 100 g |
| Size (W x D x H) | 150 x 72 x 220 mm | 167 x 95 x 195 mm |
| Burrs | Ceramic conical | Ceramic conical |
| Handle | Stainless steel | Aluminum |
| Catch container | Methacrylate resin bottle | Heatproof borosilicate glass bowl |
| Non-slip base | Not listed | Silicone non-slip cover |
| Hario USA price | $40.00 | $58.50 |
| Made in | China | Glass bowl Japan; mill and handle China |
Sizes, capacities and materials are from Hario USA product pages. Hario doesn’t publish a product weight on these pages, so we don’t list one.
Key differences at a glance
- Capacity: The Skerton Pro holds 100 g, while the Mini-Slim+ holds 24 g of grounds, which is about two cups.
- Shape: The Mini-Slim+ is a narrow 72 mm cylinder that packs easily, while the Skerton Pro is wider at 95 mm and built to sit on a counter.
- Catch container: The Skerton Pro grinds into a borosilicate glass bowl, while the Mini-Slim+ uses a clear resin bottle.
- Price: Hario USA lists the Mini-Slim+ at $40 and the Skerton Pro at $58.50.
- What stays the same: Both use conical ceramic burrs, which Hario says transfer less heat and shave beans rather than crack them.
The 4 Differences That Matter
1. Batch size
24 g is about one or two cups. If you grind for a full pot or for guests, the Skerton Pro’s 100 g means fewer refills.
2. Portability
The Mini-Slim+ is the travel grinder at 72 mm deep. Hario says the newer handle and shaft coupling give better traction than the original Mini-Slim.
3. Stability on the counter
The Skerton Pro has a silicone non-slip cover and a wider glass base, and Hario says its upgrades aim at easier adjustment and more consistent grinding.
4. Materials
Skerton Pro: aluminum handle and a Japanese-made glass bowl. Mini-Slim+: stainless handle and a resin bottle, all made in China.
What’s the same
Both are manual grinders with conical ceramic burrs and an adjustable grind setting, and both sell at Hario USA for under $60.
Who Should Buy Which?
Choose the Mini-Slim+ if you:
- Grind one or two cups at a time
- Want to travel or camp with it
- Want the lower price
Choose the Skerton Pro if you:
- Grind for several cups
- Want a glass catch bowl
- Grind mostly at home
The View from Japan
In Japan, Hario sells the same-size slim mill as the “Ceramic Slim” MSS-1TB (150 x 72 x 220 mm, 24 g), at a suggested price of ¥3,300. The Skerton Pro (MMCS-2B) appears on Hario’s global site. Its domestic sibling is the original Skerton (MSCS-2B), which also holds 100 g.
On the Japanese review site Monocil, reviewers of the Ceramic Slim call it a good first grinder, compact and quiet, with a clear bottle that shows how much is ground. One notes that it can’t reach espresso fineness. A Monocil reviewer of the original Skerton said the handle turns easily and liked that the mill can be washed. (Third-party reviews, not our own testing.)
Pair it with a dripper: see Hario V60 01 vs 02 Plastic Dripper.
Hario Mini-Slim+ vs Skerton Pro: Frequently Asked Questions
How much coffee does the Hario Mini-Slim+ hold?
Hario lists 24 g of coffee grounds.
How much does the Skerton Pro hold?
Hario lists 100 g.
Do both have ceramic burrs?
Yes, both use conical ceramic burrs.
Which is better for travel?
The Mini-Slim+. It is 72 mm deep versus 95 mm for the Skerton Pro, and it has no glass parts.
Check current listings
Prices and colors change often, so check the current listing before buying.
Related comparisons
- Hario V60 01 vs 02 Plastic Dripper: Which Size to Buy?
- Hario V60 02 Plastic vs Ceramic: Is Porcelain Worth It?
- Zojirushi SM-KHE36 vs SM-KHE48: 12 oz or 16 oz Travel Mug?
- Hario Mizudashi MCPN-7 vs MCPN-14: 600 or 1000 mL Cold Brew?
Sources
- Hario USA, “Mini-Slim+” Ceramic Coffee Mill (official): https://hario-usa.com/products/ceramic-coffee-mill-mini-plus
- Hario USA, “Skerton Pro” Ceramic Coffee Mill (official): https://hario-usa.com/products/ceramic-coffee-mill-skerton-pro
- Hario Japan: Ceramic Slim MSS-1TB specs (hario.com): https://www.hario.com/product/coffee/grinder/MSS.html?product=MSS-1TB
- Hario global: Skerton PRO MMCS-2B (global.hario.com): https://global.hario.com/product/coffee/grinder/MMCS.html
- Monocil: Ceramic Slim MSS-1TB reviews (Japanese): https://monocil.jp/items/3126/
- Monocil: Skerton MSCS-2B review (Japanese): https://monocil.jp/reviews/14546/
Specs checked October 2026. Prices and availability change, so check the current listing before buying.
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