Professional Manual Coffee Grinder with 48mm Stainless Steel Burr

The NineAM M1 features a 48mm three-stage conical burr made from 420 stainless steel that handles any brewing method from French press to espresso. The precision adjustment dial offers 72 settings at 0.016mm increments, while the three-bearing structure ensures smooth, effortless grinding with uniform results. The entire unit disassembles for cleaning, the handle folds for compact storage, and a magnetic chamber holds up to 30 grams of ground coffee. At 645 grams and 180mm tall, it’s built for both home countertops and travel.

Key Features

• 48mm Three-Stage Conical Burr: Made from 420 stainless steel with three distinct grinding zones that cut beans efficiently and produce uniform particle distribution for better flavor extraction.
• Precision Adjustment System: External rotary dial with 72 clicks per full rotation allows micro-adjustments of 0.016mm, covering 144 total grind settings from espresso-fine to French press-coarse.
• Three-Bearing Stabilization: Reinforced internal structure with three bearings keeps the burr centered during grinding for consistent particle size and effortless cranking.
• Fully Removable Design: Every component disassembles without tools for thorough cleaning, eliminating coffee residue buildup and maintaining fresh flavor.
• Collapsible Handle with Wooden Knob: Folds flat against the body for storage or packing, with an ergonomic wooden grip that makes grinding comfortable.
• Magnetic Powder Chamber: 32 strong magnets secure the collection jar to the grinder body with precise alignment, holding 25-30 grams of ground coffee.

Technical Specifications

• Model: M1 Manual Coffee Grinder
• Burr Size: 48mm
• Burr Material: 420 Stainless Steel (three-stage conical design)
• Body Material: Aluminum alloy
• Bean Capacity: 25-30g
• Weight: Approximately 645g
• Dimensions: Body 180mm × 54mm diameter | Handle 163mm | Burr cutter 48mm
• Adjustment System: External rotary dial, 72 clicks per rotation, 2 full rotations (144 total settings)
• Adjustment Precision: 0.016mm per click
• Bearing System: Three-bearing structure
• Handle Type: Collapsible/foldable with wooden knob
• Collection Method: Magnetic powder silo with 32 magnets
• Colors Available: Frosted Black, Space Gray, Rose Gold
• Suitable For: Espresso, Turkish coffee, Moka pot, Pour-over/drip coffee, French press
• Grind Range: Ultra-fine to coarse (suggested 18-32 clicks for espresso, 25-40 for mocha, 60-80 for pour-over, 80-120 for French press)
• Cleaning: Fully detachable components

Package Includes

• 1 × NineAM M1 Manual Coffee Grinder (assembled)
• 1 × Magnetic Powder Collection Chamber
• 1 × Wooden Measuring Scoop
• 1 × Cleaning Brush
• 1 × User Manual

Usage Tips

For best results, start with medium-roast beans and adjust the grind setting in small increments until you find your ideal consistency. The numbered dial makes it easy to return to your preferred setting—lower numbers produce finer grinds for espresso (18-32 clicks), while higher numbers work for French press (80-120 clicks). Clean the burr and chamber after every 5-10 uses by disassembling the grinder and brushing away residual grounds. Avoid grinding flavored or oily beans, as they can leave residue that affects taste. When traveling, fold the handle down and store the grinder upright to prevent grounds from settling in the mechanism.

Why Choose This Product?

Most portable manual grinders use 38mm burrs that struggle with fine espresso grinds and produce inconsistent particle sizes. The NineAM M1 uses a larger 48mm burr with a unique three-stage cutting design that grinds faster and more uniformly than conventional burrs. The three-bearing system eliminates wobble during grinding, so you get the same particle size from the first bean to the last.

The collapsible handle solves the storage problem that plagues most manual grinders. It folds completely flat, making the M1 easier to pack for camping, office use, or travel without sacrificing grinding capacity. The magnetic powder chamber stays firmly attached during grinding but detaches instantly when you’re ready to brew. This grinder works equally well for someone who needs espresso-fine grinds at home and coarse grinds for French press at the campsite, making it a versatile choice for coffee enthusiasts who brew multiple ways or need a reliable travel companion.