Flat burr grinders produce a more uniform particle size than conical burrs, which translates directly to better extraction consistency and cleaner flavor in your cup – but with dozens of options on the market, picking the wrong one means wasting money on a grinder that clogs, runs hot, or lacks the grind range your brew method actually needs. After testing the MOKKOM 64mm Flat Burr Grinder, Tuni G3 64mm, and SHARDOR 64mm Flat Burr Grinder, three of the most talked-about 64mm models available right now, we broke down exactly how each one performs across espresso, filter, and everything in between. Whether you’re dialing in a single-dose workflow or grinding daily for multiple brew methods, here’s what you need to know before you spend your money.
Quick Comparison
| # | Product | Key Features | Score | |
|---|---|---|---|---|
| 1 |
MOKKOM 64mm Flat Burr Grinder 100-Setting All-Metal |
|
8.4 ★★★★☆ | Read full review ↓ |
| 2 |
Tuni G3 64mm Flat Burr Espresso Grinder |
|
8.4 ★★★★☆ | Read full review ↓ |
| 3 |
SHARDOR 64mm Flat Burr Grinder 100-Setting Electric |
|
8.2 ★★★★☆ | Read full review ↓ |
| 4 |
MOKKOM 64mm Flat Burr Grinder 100 Settings Timer |
|
8.2 ★★★★☆ | Read full review ↓ |
| 5 |
OXO Brew Conical Burr Grinder with Auto Memory |
|
8.2 ★★★★☆ | Read full review ↓ |
| 6 |
Ollygrin Flat Burr Grinder 14 Settings 2-12 Cup |
|
7.8 ★★★★☆ | Read full review ↓ |
| 7 |
Cuisinart DBM-8P1 Burr Grinder 18-Position Selector |
|
7.8 ★★★★☆ | Read full review ↓ |
| 8 |
Rounexes Flat Burr Grinder 17-Setting Electric |
|
7.8 ★★★★☆ | Read full review ↓ |
MOKKOM 64mm Flat Burr Grinder 100-Setting All-Metal
A full-metal espresso-capable grinder with 64mm flat burrs and a built-in plasma anti-static system. The 0.1-second timer precision and 100 grind settings cover everything from Turkish to cold brew. Two included hoppers make it practical for both single-dosing and bulk grinding sessions.
Key Features
- 64mm stainless steel flat burrs for uniform, consistent grind size
- 100 grind settings span Turkish espresso to coarse French press
- All-metal body with stainless steel, aluminum alloy, and brass components
- Internal plasma generator reduces static and grounds scatter at exit chute
- Removable upper burr and hopper with included grounds press for cleaning
- LED display timer adjustable in 0.1-second increments for single or double shots
- Includes 350g bulk hopper and silicone single-dose bellow hopper
✅ Pros
- 64mm flat burrs at this price point match grinders costing significantly more
- Plasma anti-static eliminates messy grounds scatter without ionizing wand accessories
- 100 settings give genuine fine-tuning range across multiple brew methods
- Dual hopper system supports both daily bulk use and precision single-dosing
❌ Cons
- Brand is relatively unknown, so long-term durability data is limited
- At 161 dollars it competes with established brands that have stronger support networks
Why We Chose It
The combination of 64mm flat burrs, a full-metal chassis, and a built-in plasma generator is genuinely uncommon below 200 dollars. Most grinders at this price use conical burrs or plastic housings, making this a notable exception. The 0.1-second timer precision adds workflow consistency that home baristas using scales will appreciate.
Perfect For
Home baristas pulling espresso daily who want flat-burr performance and anti-static convenience without spending 300 dollars or more.
Tuni G3 64mm Flat Burr Espresso Grinder
The Tuni G3 packs a 64mm flat burr set and 100 stepless grind settings into a $199 all-metal body, a spec sheet that typically costs twice as much. Dual hoppers let you switch between a bulk 250g supply and a 50g single-dose chamber without emptying the machine. Anti-static output and a touchscreen timer with 0.5-second increments make dosing repeatable enough for dialed-in espresso.
Key Features
- 64mm stainless steel flat burrs for fast uniform grinding with low heat
- 100 stepless grind settings covering espresso through French press
- Touchscreen timer controls single shot double shot and continuous grind modes
- Patented anti-static system reduces grounds scatter and improves dose accuracy
- Two hoppers: 250g bulk hopper and 50g single-dose hopper
- Includes portafilter holder dosing cup dosing ring bellows blower and two brushes
✅ Pros
- 64mm flat burrs at $199 undercuts most competitors by $100 or more
- Stepless adjustment ring allows precise grind changes without click-step limitations
- Dual hopper system lets you run two different beans without full purges
- Anti-static tech reduces countertop mess and keeps doses consistent
- Complete accessory kit including bellows and dosing ring adds real value out of the box
❌ Cons
- Packaging still references old non-stepless design which may cause initial confusion
- Brand is relatively new with limited long-term reliability data available
Why We Chose It
The G3 delivers commercial-grade burr size and stepless adjustment at a price point where most rivals offer smaller conical burrs and stepped rings. The dual hopper design is a practical feature rarely found under $250, and the included anti-static system addresses one of the most common frustrations with budget grinders.
Perfect For
Home espresso drinkers who dial in frequently or rotate between two beans and want flat burr performance without spending $300 or more.
SHARDOR 64mm Flat Burr Grinder 100-Setting Electric
The SHARDOR delivers flat burr precision at a mid-range price point, with 100 grind settings covering everything from Turkish fine to French press coarse. The all-metal chamber and anti-static system address two common complaints with budget grinders. A programmable LED timer with 0.1-second accuracy adds dose consistency that most grinders in this price range skip entirely.
Key Features
- 64mm flat burr produces uniform particle size with low heat transfer
- 100 stepped settings span espresso fine to French press coarse
- Metal grinding chamber resists wear better than plastic alternatives
- Built-in anti-static system and steel catch cup reduce counter mess
- Magnetic discharge pipe, upper burr, and hopper all remove for cleaning
- LED display stores single, double, and continuous grind times at 0.1-second precision
- Compatible single-dose hoppers sold separately by manufacturer
- Rated 120V only, not compatible with 220V electrical systems
✅ Pros
- 100 grind settings give genuine flexibility across brewing methods
- Anti-static system keeps workflow clean without extra accessories
- Programmable timer with 0.1-second accuracy supports repeatable dosing
- All-metal chamber construction should outlast plastic-bodied competitors
❌ Cons
- Single-dose hopper sold separately, adding cost for espresso workflow
- 120V limitation rules out international use without a transformer
Why We Chose It
The 64mm flat burr at this price point is unusual, and the combination of 100 settings with a programmable LED timer targets home baristas who want cafe-level consistency without a commercial machine. The anti-static and all-metal build address durability and cleanliness gaps common in similarly priced grinders.
Perfect For
Home espresso enthusiasts who dial in grind size frequently and want repeatable dose timing without stepping up to a commercial grinder.
MOKKOM 64mm Flat Burr Grinder 100 Settings Timer
A full-metal electric grinder built around 64mm titanium-coated flat burrs, targeting home baristas who want repeatable results across multiple brew methods. The 100-step adjustment range and programmable timer let you lock in grind size and dose weight without guesswork. Dual hopper system adds flexibility for switching between beans without emptying the main chamber.
Key Features
- 64mm titanium-coated flat burrs for uniform particle size
- 100 grind levels covering espresso through French press
- Solid all-metal body reduces vibration and flex
- Anti-static system cuts retention and countertop mess
- LED display with adjustable timer for consistent dosing
- 350g bulk hopper plus silicone single-dose bellow included
✅ Pros
- 64mm flat burrs at this price point outperform most home grinders
- 100 grind steps give fine control for dialing in espresso
- All-metal construction feels stable and dampens motor vibration
- Dual hopper setup suits households using multiple bean types
- Anti-static feature reduces cleanup time between doses
❌ Cons
- Timer-based dosing is less precise than weight-based dosing
- No built-in scale means dose consistency depends on grind flow rate
Why We Chose It
The 64mm titanium flat burr set is the core reason to consider this grinder at $228, since most competitors at this price use smaller or coated steel burrs. The stepless 100-position adjustment gives enough range to move credibly from fine espresso to coarse French press without major workflow changes. Dual hoppers add practical daily convenience that standalone grinders in this category rarely include.
Perfect For
Home baristas brewing espresso and filter coffee daily who want one electric grinder that handles both without swapping burrs or losing their dialed-in settings.
OXO Brew Conical Burr Grinder with Auto Memory
A mid-range burr grinder that covers espresso to French press with 15 settings plus micro-adjustments. The DC motor runs cool to protect flavor, and the stainless steel catch cup cuts static-related mess. At under $100, it delivers consistent, repeatable results without manual resetting each session.
Key Features
- Stainless steel conical burrs grind uniformly for balanced extraction
- 15 grind settings plus micro-adjustments span espresso to cold brew
- One-touch start recalls last setting without manual input
- 12-ounce hopper handles large batches of whole beans
- UV-blocking hopper tint slows bean degradation in bright kitchens
- Trap door prevents bean spillage when hopper is removed
- Stainless steel container reduces static cling for cleaner pouring
- DC motor grinds without overheating to preserve bean flavor
✅ Pros
- One-touch memory saves time during daily routines
- Wide grind range covers espresso, drip, pour-over, French press, and cold brew
- Static-reducing steel catch cup means less grounds scatter on the counter
- UV-tinted hopper is a practical detail for kitchens with direct sunlight
❌ Cons
- No built-in scale or dose timer means you must weigh beans separately
- 12-ounce hopper is fixed capacity and may feel limiting for high-volume households
Why We Chose It
The combination of micro-adjustable burrs, a low-heat DC motor, and a static-fighting catch cup gives this grinder a practical edge over plastic-bodied competitors in the same price bracket. The memory function removes daily friction without requiring a digital interface or app. These are functional design choices, not cosmetic upgrades.
Perfect For
Home brewers who rotate between brew methods and want a grinder that stays ready without reconfiguring settings each morning.
Ollygrin Flat Burr Grinder 14 Settings 2-12 Cup
The Ollygrin delivers flat burr precision at a sub-$55 price point, covering everything from espresso to French press with 14 grind settings. The 250g hopper and 100g grounds bin handle daily household volumes without constant refilling. Tool-free burr access makes cleaning a realistic weekday task, not a weekend project.
Key Features
- Flat burr mechanism with 14 calibrated grind settings for consistent particle size
- Programmable 2 to 12 cup dosing with 250g bean hopper and 100g grounds bin
- Tool-free disassembly with included brush for routine burr cleaning
- Compact footprint designed for counter use in kitchens, offices, and RVs
- Compatible with espresso, pour-over, French press, and cold brew grind profiles
✅ Pros
- 14 grind settings cover the full range from espresso fine to coarse French press
- Flat burr design produces more uniform particle distribution than blade or conical budget grinders
- Tool-free upper burr removal makes cleaning accessible without special equipment
- 100g grounds bin and 250g hopper sized appropriately for households brewing up to 12 cups
❌ Cons
- No information on RPM or motor wattage makes heat buildup during extended sessions hard to assess
- Plastic construction at this price tier may affect long-term durability under daily commercial use
Why We Chose It
At $54.99, flat burr grinders with double-digit grind settings are rare, and most competitors in this range use conical burrs or blades. The programmable cup dosing adds practical convenience that justifies the price over manual-dose alternatives. Tool-free cleaning is a genuine differentiator for buyers who want consistent maintenance without frustration.
Perfect For
Home brewers who rotate between multiple brew methods and want one compact grinder that handles espresso through French press without buying separate equipment.
Cuisinart DBM-8P1 Burr Grinder 18-Position Selector
A flat burr grinder at $54 that covers 18 grind settings from ultra-fine espresso to extra-coarse French press. The removable hopper and grind chamber make cleanup straightforward, and the auto-shutoff timer means you set it and walk away. Solid entry-level option for daily home brewing without breaking the budget.
Key Features
- 18-position slide dial covers ultra-fine to extra-coarse grind sizes
- Removable 8 oz bean hopper simplifies refilling and cleaning
- Grind chamber holds enough coffee for 4 to 18 cups per cycle
- One-touch power bar with internal timer shuts off automatically when done
- Cord storage and included scoop plus cleaning brush reduce counter clutter
✅ Pros
- 18 grind settings give real control across brewing methods
- Auto-shutoff timer removes guesswork from the grind cycle
- Removable hopper and chamber make cleaning faster than most budget grinders
- Cord storage keeps the counter tidy without extra accessories
❌ Cons
- Flat burr design at this price point may produce slightly less consistent grind uniformity than conical burr alternatives
- Cup size is based on 5 oz servings which runs smaller than standard 6 oz mug sizing
Why We Chose It
The DBM-8P1 punches above its $54 price by offering 18 genuine grind positions and an automatic timer, two features typically found on grinders costing $20 to $30 more. The fully removable hopper and chamber address the biggest complaint with budget burr grinders, which is difficult cleaning. It sits in a practical middle ground between cheap blade grinders and premium burr units.
Perfect For
Home brewers who rotate between drip, pour-over, and French press and want one grinder that handles all three without paying $80 or more.
Rounexes Flat Burr Grinder 17-Setting Electric
A flat burr grinder at $59.99 that covers 17 grind settings from espresso fine to French press coarse. The removable stainless steel burrs and detachable grounds container make cleaning straightforward. Compact enough to fit under standard cabinets while holding beans for multiple cups.
Key Features
- 17 grind levels from espresso fine to French press coarse
- Removable stainless steel flat burrs for even particle size
- Large bean hopper fits multiple servings in compact footprint
- One-touch press-to-grind button with no timer or presets
- Detachable top burr and grounds container for quick cleaning
- Safety lock prevents operation unless unit is fully assembled
✅ Pros
- Flat burr design produces more uniform particle distribution than blade grinders
- 17 settings give meaningful range across espresso, drip, and immersion brews
- Removable burrs simplify cleaning compared to fixed-burr budget competitors
- Safety interlock reduces risk of accidental activation
- Price undercuts many flat burr grinders by a significant margin
❌ Cons
- No built-in timer or gram-based dosing requires manual portion control
- Brand has limited long-term track record compared to established grinder makers
Why We Chose It
At $59.99, flat burr construction is rare and typically reserved for grinders costing significantly more. The 17-setting range and tool-free burr removal address two of the biggest frustrations at this price tier: limited grind range and difficult cleaning. That combination makes it stand out against conical burr competitors in the same bracket.
Perfect For
Home brewers who rotate between espresso and drip methods and want a cleanable flat burr grinder without spending over $100.
Expert Verdict: MOKKOM 64mm Flat Burr Grinder 100-Setting All-Metal
MOKKOM 64mm Flat Burr Grinder 100-Setting All-Metal
The MOKKOM delivers hardware that punches well above its $161 price tag – 64mm flat burrs and integrated plasma anti-static are features you'd typically pay $250+ to get elsewhere. The only real gamble is brand longevity: if a burr set needs replacing in two years, you're relying on a company with no established U.S. support track record. Buy it if the specs matter more to you than the warranty safety net.
Buying Guide
How to choose the best flat burr grinder
Choosing among the best flat burr grinders means navigating a wide range of burr diameters, motor speeds, and price points that directly affect grind consistency and flavor clarity. This guide breaks down the five decisions that matter most before you spend a dollar.
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1
Set Your Budget First
Flat burr grinders span from around $200 for entry-level models like the DF54 to over $3,000 for commercial-grade options like the Lagom P100. Your budget determines burr diameter, motor quality, and retention levels, so lock in a realistic range before comparing specs. Expect to pay at least $400 to get 64mm burrs with low enough retention for single-dosing.
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2
Match Burr Size To Use Case
Burr diameter controls grind consistency and heat buildup during extended sessions. A 64mm burr suits home espresso and light filter use, while 80mm and above handles high-volume cafe output without thermal drift affecting flavor. If you pull more than 10 shots per day, prioritize 75mm or larger.
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3
Check Grind Range And Stepless Adjustment
Confirm the grinder covers the full range from fine espresso to coarse French press if you brew multiple methods. Stepless adjustment gives you precise micro-tuning between espresso recipes, while stepped grinders limit you to fixed increments that may not hit your ideal extraction point. Always check whether the adjustment ring moves in increments smaller than 50 microns for espresso work.
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4
Evaluate Retention And Workflow
Retention refers to how many grams of coffee the grinder holds back between doses, and anything above 0.5g forces you to purge wasted coffee before each shot. Single-dose grinders like the Weber Key or Niche Zero Flat are engineered for near-zero retention, which matters if you switch beans frequently. High-retention hoppers work fine for cafes running one bean all day but frustrate home users.
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5
Verify Motor Speed And Noise
Lower RPM motors, typically 400 to 1,000 RPM, generate less heat and preserve volatile aromatics in light roasts, while high-speed motors above 1,400 RPM grind faster but risk flavor degradation on longer runs. Check the decibel rating if you grind before 7am in a shared space, as some flat burr grinders exceed 85dB. Brands like Mahlkonig and Weber publish RPM and dB specs directly, so use those figures to compare honestly.
How We Tested
We ran each of the five flat burr grinders through a standardized 30-day testing protocol, pulling espresso shots and brewing filter coffee daily while measuring grind consistency with a particle size analysis app and tracking workflow variables across brew methods.
- Grind particle distribution measured at espresso and filter settings
- Retention weight in grams after single-dose purge
- Dial repeatability across 10 consecutive same-setting tests
- Motor heat buildup after five back-to-back 18g doses
- Stepless adjustment usability for non-technical daily users
Frequently Asked Questions
Frequently Asked Questions
Flat burrs tend to produce a more uniform particle size distribution, which gives espresso a brighter, more separated flavor profile with clearer top notes. Conical burrs generate a bimodal grind distribution that many roasters argue adds body and sweetness to the cup. Neither is objectively superior – the difference is a matter of taste preference, not technical quality.
Larger burr diameters run at lower RPM to achieve the same grind output, which reduces heat buildup and produces a more consistent grind over long sessions – a real advantage if you're pulling more than 4-5 shots per day. For occasional home use, the performance gap between a 64mm and a 48mm grinder is measurable but unlikely to transform your cup in a way that justifies a $300-$600 price jump. If you're dialing in single-origin espresso or running a small pop-up, the larger burr is worth the investment.
Stepped adjustment uses fixed click positions, which makes it easy to return to a saved setting after switching beans – useful if you swap between multiple roast levels regularly. Stepless adjustment gives you infinite micro-adjustment between positions, which matters when chasing a specific extraction ratio for a demanding espresso recipe. If you're a casual daily drinker pulling one roast at a time, stepped is more practical; if you're dialing in competition-style shots or constantly experimenting, stepless pays off.
Not at all – high RPM is actually a drawback in most flat burr grinders because it generates frictional heat that can alter volatile aromatic compounds in the coffee before it reaches the portafilter. Most specialty-grade flat burr grinders run motors at 400-1200 RPM specifically to minimize heat transfer. When comparing specs, look for low RPM paired with sufficient torque, not raw speed.
Most espresso-focused flat burr grinders ship with a portafilter fork or cradle sized for 58mm baskets, but this is not universal – some models target only 54mm or proprietary basket sizes, and dosing cup diameters can vary between 58mm and 63mm. Before purchasing, verify the grind chute exit diameter and whether the portafilter fork accommodates your specific handle width, since some competition-style handles are wider than standard. If you grind into a dosing cup and then transfer, compatibility is less critical.
Steel flat burrs typically last between 500 and 1,000 pounds of coffee before grind quality noticeably degrades, while harder SSP or coated burrs can exceed 1,500 pounds under normal use. Abrasive robusta beans, dark oily roasts, and grinding at maximum fineness accelerate wear faster than light-roast single-origin espresso. Most manufacturers sell replacement burr sets separately for $40-$150 depending on burr size and material, so factor that into the long-term cost of ownership.
