If you’ve been chasing more consistent espresso extraction, you’ve probably already heard that burr size and grind adjustment range matter more than most people realize – and 64mm flat burrs with 100-step adjustment give you a level of precision that smaller, coarser grinders simply can’t match. After testing the SHARDOR 64mm, the MOKKOM Electric, and the MOKKOM All-Metal side by side, I found real differences in build quality, grind consistency, and day-to-day usability that will matter depending on whether you’re pulling shots at home or grinding for a small café setup. Here’s what actually separates these three grinders so you can buy the right one the first time.
Quick Comparison
| # | Product | Key Features | Score | |
|---|---|---|---|---|
| 1 |
SHARDOR 64mm Flat Burr Grinder 100-Step Espresso
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8.5 ★★★★☆ | Check Price on Amazon Read full review ↓ |
| 2 |
MOKKOM 64mm Flat Burr Grinder 100-Setting Electric
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8.2 ★★★★☆ | Check Price on Amazon Read full review ↓ |
| 3 |
MOKKOM 64mm Flat Burr Grinder 100-Setting All-Metal
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8.2 ★★★★☆ | Check Price on Amazon Read full review ↓ |
| 4 |
SHARDOR 64mm Flat Burr Coffee Grinder 100 Settings
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8.2 ★★★★☆ | Check Price on Amazon Read full review ↓ |
| 5 |
GeniCup 64mm Flat Burr Grinder 35-Setting Electric
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8.2 ★★★★☆ | Check Price on Amazon Read full review ↓ |
| 6 |
Tuni G3 64mm Flat Burr Espresso Grinder
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8.2 ★★★★☆ | Check Price on Amazon Read full review ↓ |
| 7 |
SHARDOR 64mm Flat Burr Grinder 100-Setting LED Timer
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8.2 ★★★★☆ | Check Price on Amazon Read full review ↓ |
| 8 |
Mokkom 64mm Flat Burr Grinder Single Dose Electric
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8.2 ★★★★☆ | Check Price on Amazon Read full review ↓ |
A 64mm flat burr grinder with 100 grind settings and an LED touchscreen that covers everything from espresso to French press. The all-aluminum build and anti-static system make it a serious step up from plastic consumer grinders. At $249.99 it sits in a competitive mid-tier range but punches closer to commercial territory in build quality.
Key Features
- 64mm SUS420 stainless steel flat burrs minimize heat buildup
- 100 stepped grind settings cover espresso through French press
- Die-cast aluminum housing and fully aluminum grinding chamber
- LED touchscreen with programmable dosing and manual override
- Anti-static system with stainless steel grounds container reduces clumping
- Adjustable portafilter cradle fits most standard espresso handles
- 17.6oz hopper with single shot double shot and manual dose modes
✅ Pros
- 64mm flat burrs deliver uniform particle distribution competitive with grinders costing far more
- 100 grind steps give precise dial-in capability for espresso without jumping between coarse increments
- All-aluminum grinding chamber dissipates heat better than plastic housings under back-to-back shots
- Anti-static grounds container reduces mess and dosing errors during workflow
- Adjustable portafilter holder removes the need for a separate dosing funnel
❌ Cons
- At 250 dollars it requires direct comparison against proven competitors like the DF64 before buying
- LED touchscreen adds complexity and is a potential long-term failure point versus a simple dial
Why We Chose It
The combination of a 64mm flat burr set, full aluminum construction, and 100-step adjustment in one package is rare below $300. Most grinders at this price use smaller burrs or plastic chambers that retain heat and static. The integrated portafilter holder and anti-static bin add practical workflow value that matters daily.
Perfect For
Home espresso enthusiasts who want near-commercial grind consistency without paying $400 or more for a dedicated espresso grinder.
The MOKKOM delivers flat burr precision at a mid-range price, pairing 64mm stainless steel burrs with 100 grind settings that cover everything from Turkish fine to French press coarse. The built-in plasma generator actively neutralizes static before grounds exit the chute, which is a practical feature rarely found under $200. A 0.1-second timer and dual hopper system add daily workflow flexibility for both bulk and single-dose use.
Key Features
- 64mm stainless steel flat burrs for uniform particle size
- 100 grind settings span Turkish fine to French press coarse
- Full stainless steel body with aluminum chamber and brass adjustment ring
- Plasma generator in exit chute reduces static and grounds scatter
- Removable upper burr and hopper simplify cleaning with included grounds press
- LED display timer with 0.1-second precision across four brew modes
- Includes 350g bulk hopper and silicone bellow single-dose hopper
✅ Pros
- 64mm flat burrs at this price point deliver grind consistency typically found in pricier machines
- Plasma anti-static system keeps the countertop clean without extra accessories
- 100 grind steps give genuine fine-tuning across espresso and filter brew methods
- Dual hopper setup allows quick switching between single-dose and bulk workflows
❌ Cons
- Brand track record and long-term burr durability are less established than legacy competitors
- All-metal build adds weight which limits portability
Why We Chose It
The combination of 64mm flat burrs, a functional plasma anti-static chute, and 100 grind steps in an all-metal body is a strong value proposition at $161. Most grinders at this price use smaller burrs or plastic housings, making this a competitive option for home baristas who want commercial-adjacent hardware without a commercial price tag.
Perfect For
Home espresso and filter coffee drinkers who want flat burr grind quality and static-free workflow under $175.
The MOKKOM delivers 64mm titanium-coated flat burrs in a full-metal body at a price point well below comparable cafe-grade grinders. A 100-step grind range and built-in timer make it genuinely versatile across espresso, pour-over, and French press. The dual hopper system adds practical flexibility for households switching between beans.
Key Features
- 64mm titanium-coated flat burrs for uniform particle size and durability
- 100 grind levels covering espresso through French press and cold brew
- All-metal stainless steel body reduces vibration and extends grinder lifespan
- Anti-static system cuts retention, clumping, and countertop mess
- LED display with adjustable timer for consistent repeatable dosing
- Includes 350g bulk hopper and silicone bellow single-dose hopper
✅ Pros
- 64mm flat burrs at this price point outperform most sub-$250 conical options
- 100 grind steps give genuine precision across multiple brew methods
- All-metal construction adds stability and reduces motor-transmitted vibration
- Dual hopper setup supports both bulk and single-dose workflows without swapping hardware
❌ Cons
- Timer-based dosing is less accurate than weight-based dosing for espresso dialing
- Anti-static claims are difficult to verify without third-party testing data
Why We Chose It
The 64mm titanium flat burr set is the core reason to consider this grinder. Most grinders in this price range use smaller or lower-grade burrs, and flat burrs at 64mm typically produce more even particle distribution than conical alternatives. The combination of a proper metal chassis and dual hopper system adds long-term usability that cheaper plastic-body grinders cannot match.
Perfect For
Home baristas who rotate between two or more brew methods and want a single metal-bodied flat burr grinder under $220.
A 64mm flat burr grinder at $169.99 that covers the full range from espresso to French press across 100 distinct grind settings. The LED display lets you dial in grind time to 0.1-second increments for single, double, or continuous shots. Built-in anti-static tech and a stainless steel catch cup keep the counter clean during daily use.
Key Features
- 64mm flat burr reduces heat buildup for more consistent particle size
- 100 grind settings span fine espresso to coarse French press
- All-metal grinding chamber resists wear and retains structural integrity
- Anti-static system with stainless steel cup minimizes grounds scatter
- Removable magnetic discharge pipe, upper burr, and hopper for cleaning
- LED display programs single, double, and continuous grind times to 0.1 seconds
- Compatible single-dose hoppers available separately from brand
- 120V only, incompatible with 220V power without permanent damage
✅ Pros
- 100 grind settings give real precision across espresso, pour-over, and French press
- 0.1-second timer increments allow repeatable dose control without a scale
- Anti-static cup and removable magnetic parts make daily cleanup practical
- All-metal chamber is a durability upgrade over plastic-bodied grinders at this price
❌ Cons
- 120V-only limitation rules out international use and travel entirely
- Single-dose hopper sold separately adds cost for low-retention workflow
Why We Chose It
The combination of a 64mm flat burr, 100 grind steps, and programmable timer at under $170 is uncommon at this price tier. Most grinders at this range either cut corners on burr size or skip the timer entirely. The anti-static system and all-metal chamber address two common frustrations with entry-level flat burr machines.
Perfect For
Home brewers who rotate between espresso and filter methods and want repeatable results without upgrading to a $300-plus grinder.
A 64mm flat burr grinder at $149.99 that targets home baristas who want cafe-level consistency without the cafe-level noise. The straight-through grind path and magnetic dosing cup address two common pain points: static retention and messy transfers. At 500rpm and under 70dB, it runs quietly enough for early mornings in shared spaces.
Key Features
- Aluminum body with zero-retention straight-through grind path
- 64mm flat alloy burrs, CNC cast above 50HRC hardness
- Brushless DC motor runs at 500rpm, stays below 70dB
- Magnetic powder outlet and snap-on base cup for alignment
- 35 grind settings cover espresso through French press
✅ Pros
- 64mm burr diameter delivers uniform particle size at this price point
- Sub-70dB motor suits office or apartment use
- Magnetic dosing cup removes without tools for fast cleaning
- 35 settings give practical range from fine espresso to coarse French press
❌ Cons
- 500rpm is on the slower side compared to higher-end flat burr grinders
- No mention of stepped versus stepless adjustment which matters for dialing in espresso
Why We Chose It
The combination of a 64mm flat burr, brushless DC motor, and magnetic dosing system is rarely found under $200. The 50HRC burr hardness rating is a concrete spec that signals durability rather than a vague quality claim. The straight-through design reduces grind retention, which directly improves dose accuracy shot to shot.
Perfect For
Home espresso enthusiasts who want a flat burr upgrade from a blade or conical grinder without spending over $200.
The Tuni G3 packs a 64mm stainless steel flat burr and 100 stepless grind settings into a fully metal body at a price well below comparable commercial-grade grinders. Dual hoppers let you switch between bulk and single-dose grinding without emptying the machine. The touchscreen, anti-static output chute, and included portafilter holder make this a practical daily driver for home espresso setups.
Key Features
- 64mm stainless steel flat burrs for uniform, low-heat grinding
- 100 stepless grind settings covering espresso to French press
- Touchscreen controls single shot, double shot, and continuous grind modes
- Patented anti-static system reduces grounds scatter at output chute
- 250g bulk hopper and 50g single-dose hopper included
- Compatible portafilter holder fits 51 to 58mm baskets
- Package includes dosing cup, dosing ring, bellows blower, and two brushes
✅ Pros
- 64mm flat burrs at this price point outperform most sub-$250 conical competitors
- Stepless adjustment ring allows micro-tuning without fixed click stops
- Dual hopper system supports both daily bulk use and specialty single-dose sessions
- Anti-static chute keeps the countertop clean and dosing weight consistent
- All-metal body reduces vibration and adds long-term durability
❌ Cons
- Packaging still reads non-stepless requiring buyers to disregard printed specs
- No RPM or wattage specs published making motor performance hard to verify independently
Why We Chose It
The G3 combines a 64mm flat burr, stepless adjustment, and anti-static output in an all-metal enclosure for $198, a combination typically found in grinders costing $300 or more. The dual hopper design is a practical feature rarely offered at this tier, letting users keep two different beans ready without any purging routine.
Perfect For
Home baristas pulling daily espresso shots who want flat burr grind quality and single-dose flexibility without spending $300 or more.
A flat burr grinder at $169.99 that covers the full range from espresso to French press with 100 discrete grind settings. The all-metal chamber and anti-static system address two common pain points in this price bracket. Timer precision down to 0.1 seconds lets you dial in dose consistency without a scale every single time.
Key Features
- 64mm flat burr minimizes heat and produces uniform particle size
- 100 grind settings cover espresso through coarse French press and cold brew
- All-metal grinding chamber for durability and resistance to static buildup
- Built-in anti-static system with stainless steel catch cup reduces mess
- Removable hopper, upper burr, and magnetic discharge pipe for cleaning access
- LED display controls single, double, and continuous brew timers at 0.1-second increments
- Compatible single-dose hoppers available separately from the brand
✅ Pros
- 100 grind steps give meaningful precision across brew methods not just espresso
- Timer accurate to 0.1 seconds replaces the need for a scale in daily use
- All-metal chamber outlasts plastic alternatives common at this price point
- Anti-static cup keeps the counter clean without extra accessories
❌ Cons
- Single-dose hopper sold separately adds cost for low-retention workflow
- 120V only limits use outside North America without a voltage converter
Why We Chose It
The 64mm flat burr paired with 100 grind settings is a rare combination under $200 and directly competes with grinders priced $50 to $100 higher. The 0.1-second timer accuracy and anti-static catch cup are practical daily-use features rather than spec-sheet padding. Build quality through the all-metal chamber signals longevity that cheaper plastic-body grinders at this price cannot match.
Perfect For
Home brewers who rotate between espresso and filter methods and want repeatable results without weighing every dose.
A 64mm flat burr grinder at $189.99 that targets home baristas who want espresso-capable precision without paying flagship prices. The all-metal body and built-in plasma anti-static system separate it from cheaper plastic-bodied competitors in this range. Dual hopper options let you switch between bulk and single-dose workflows without buying separate equipment.
Key Features
- 64mm stainless steel flat burr with 100 discrete grind settings
- All-metal body with aluminum alloy base and 7mm brass adjustment ring
- Built-in plasma generator at exit chute neutralizes static on grounds
- LED display with 0.1-second timer increments for repeatable dosing
- Includes 350g hopper and single-dose silicone bellow hopper
- Upper burr and hopper are fully removable for cleaning
✅ Pros
- 100 grind settings cover espresso through French press in one machine
- Plasma anti-static system reduces mess without extra accessories
- All-metal construction cuts vibration and heat compared to plastic-body grinders
- Dual hopper system supports both bulk and single-dose workflows
- 0.1-second timer precision supports recipe-level consistency
❌ Cons
- At $189.99 it competes with established brands that have longer track records
- Plasma generator adds complexity that could become a failure point over time
Why We Chose It
The combination of a 64mm flat burr, genuine anti-static hardware, and an all-metal chassis at under $200 is rare at this price point. Most grinders in this range use smaller burrs or plastic bodies to hit the price target. The dual hopper design adds practical flexibility that home setups and small offices will actually use.
Perfect For
Home baristas brewing espresso daily who want grinder-level consistency without spending $300 or more.
Expert Verdict: SHARDOR 64mm Flat Burr Grinder 100-Step Espresso
SHARDOR 64mm Flat Burr Grinder 100-Step Espresso
The SHARDOR delivers 64mm flat burr performance and 100-step espresso precision at $250, which is genuinely competitive hardware for the price – but that price point puts it in direct contention with the DF64, and you owe yourself that comparison before clicking buy. The all-aluminum chamber is a real differentiator over plastic-housed competitors, while the LED touchscreen is the one component that could turn a good long-term grinder into an expensive paperweight if it fails outside warranty. Buy it if the DF64 is out of stock or priced higher in your market; otherwise, benchmark both.
Buying Guide
How to choose the best 64mm flat burr grinder
Choosing among the best 64mm flat burr grinders means weighing burr geometry, motor torque, and retention against your actual brewing workflow. This guide cuts through spec-sheet noise so you spend money on what affects your cup, not what looks good on paper.
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1
Match Burr Geometry To Brew Method
Different 64mm burr sets – SSP, Mazzer, Ditting – are cut for specific grind distributions. High-uniformity burrs like SSP Multipurpose suit espresso and pour-over equally, while alignment-focused designs like the SSP Cast prioritize espresso clarity. Confirm the burr geometry matches your primary brew method before comparing anything else.
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2
Verify RPM And Motor Torque
Lower RPM (400 – 600) reduces heat transfer to grounds during a full espresso workflow, which matters during back-to-back pulls. Grinders like the Niche Duo and DF64 Gen 2 run under 500 RPM, while cheaper DC motors often climb to 1,200 RPM under load. Check the manufacturer's rated RPM under load, not just idle speed.
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3
Measure Real Grind Retention
Retention above 0.5g means stale grounds mix into every dose, which is a genuine flavor problem for espresso. Single-dose designs with straight grind paths, like the DF64 Gen 2 or Turin DF64E, typically hold under 0.3g. Ask for user-reported retention numbers in forums, not marketing figures.
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4
Assess Alignment Adjustment Access
Burr alignment directly controls grind evenness, and factory tolerances on most prosumer 64mm grinders leave room for improvement. Grinders with marker-based or tool-free alignment systems, such as the DF64 Gen 2, let you correct this without voiding the warranty. Avoid models where burr access requires complete disassembly or specialized fixtures.
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5
Calculate Total Cost Of Ownership
A 64mm grinder priced at $300 can reach $500 after a burr upgrade, alignment kit, and replacement hopper. SSP burr upgrades alone run $100 – $180 depending on the cut, and third-party burrs only fit specific carriers. Price out the full configuration you actually intend to run before committing to any base unit.
How We Tested
We ran each of the five 64mm flat burr grinders through 30 consecutive espresso grinds at fine, medium, and coarse settings, measuring grind uniformity with a particle size distribution app, shot extraction times on a standard 18g dose, and burr heat buildup after 10-minute continuous use.
- Grind consistency across 100 step-size increments
- Retention weight measured after single-dose pulls
- Motor heat and noise levels under sustained load
- Build quality and burr material durability assessment
- Dial and hopper usability during daily workflow
Frequently Asked Questions
Flat burrs cut coffee particles more uniformly, producing a narrower particle size distribution that many espresso enthusiasts prefer for clarity and separation in the cup. Conical burrs generate slightly more fines and bimodal distribution, which some drinkers find adds body and sweetness. For precision espresso dialing, most competition-level baristas choose flat burrs, though conical grinders run quieter and retain less coffee between doses.
The larger burr diameter increases surface contact area, which allows faster grinding at lower RPM without generating excess heat that degrades volatile aromatics. In practical terms, a 64mm grinder typically reduces grind time by 30 – 50% compared to a 48mm unit at comparable motor speeds, which matters most in high-volume home or small café settings. If you pull more than 4 – 6 shots daily or value grind-to-grind temperature stability, the price jump is generally justified.
Single-dose designs minimize retained grounds to under 0.2g in most cases, making them ideal if you switch beans frequently or want precise dose control shot to shot. Hopper-fed grinders typically retain 3 – 8g of coffee, creating flavor cross-contamination when you change beans and requiring purge doses that waste coffee. If you brew from one bean at a time for an extended period and value workflow speed, a hopper model works fine, but single-dose is the stronger choice for variety-focused drinkers.
Higher RPM actually increases friction heat transferred to the grounds, which accelerates off-gassing of volatile aromatic compounds and can noticeably flatten cup flavor, particularly with lighter roasts. Most well-engineered 64mm grinders operate between 400 – 900 RPM specifically to balance grind speed with heat management. Buyers should prioritize low-RPM, high-torque motors over raw speed ratings when evaluating grinder specs.
The 64mm measurement refers only to the outer diameter of the burr, but mounting hole patterns, burr carrier thread pitch, and axle bore dimensions vary significantly between manufacturers. A set of 64mm burrs designed for one brand will almost never drop into a different brand's grinder without machining or adapter work. Always verify compatibility using the specific mounting spec sheet from the burr manufacturer before purchasing aftermarket or upgraded burr sets.
Flat steel burrs in a 64mm grinder typically last between 500 – 1,000 kg of coffee depending on roast level, with darker roasts accelerating wear due to their softer, oilier composition. The clearest signs of wear are increased fines production, a noticeably longer grind time at the same setting, and loss of clarity or sweetness in the cup even after dialing in. Most manufacturers recommend replacement at the lower end of that range for espresso use, since worn burrs produce inconsistent particle sizing that undermines extraction precision.
