You weigh your beans, drop them in the hopper, and hit the button. Then you tap the grinder, brush out the chute, and still lose half a gram of grounds to static and retention. Single dosing should be simple, but most grinders fight you at every step.
| 1st Pick | 2nd Pick | 3rd Pick | 4th Pick |
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| Viesimple Viesimple Gen 4 Electric Burr Coffee Grinder,… | MiiCoffee MiiCoffee DF64 II Single Dosing Coffee Grinder… | Viesimple Viesimple Gen 4 Electric Burr Coffee Grinder,… | Tuni Tuni G3 Commercial 64mm Flat Burr Coffee… |
| See on Amazon | See on Amazon | See on Amazon | See on Amazon |
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A proper single-dose grinder solves that with low retention, anti-static tech, and burrs that let you hop between brew methods without wasting beans. The best ones also give you stepless adjustment for dialing in espresso, plus a design that keeps your counter clean.
We tested four leading single-dose grinders side by side for this review. The Viesimple Gen 4 is our top pick for most home users, with the MiiCoffee DF64 II close behind for flat-burr fans. The Tuni G3 rounds out the list for those who want commercial features at home. Here’s how they compare.
Here’s a quick look at how these four grinders stack up on the specs that matter most.
| Features | Viesimple Gen 4 | MiiCoffee DF64 II | Viesimple Gen 4 Silver | Tuni G3 |
|---|---|---|---|---|
| Burr Type | 48mm conical | 64mm flat | 48mm conical | 64mm flat |
| Adjustment | Stepped | Stepless | Stepped | Stepless |
| Static Control | Anti-static coating | Plasma generator | Anti-static coating | Anti-static system |
| Best For | Budget home | Espresso hobbyist | Budget home | High-volume home |
Viesimple Gen 4 Electric
Viesimple
Viesimple Gen 4 Electric Burr Coffee Grinder,…
- THE DO-IT-ALL GRINDER:The electric coffee grinder is a powerful all-purpose coffee grinder featuring 5-blade of 48 mm conical burr…
- ANTI-FLYING DESIGN: The powder catching cup of this espresso grinder is designed with a sealed lid, which is able to be 100% anti-…
- PREMIUN PERFORMANCE MOTOR: The Gen4 electric coffee grinder's motor has advanced stability, is 99% trouble-free, and has a lifespa…
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The Viesimple Gen 4 is the grinder we’d recommend to anyone who wants single dosing without spending a fortune. It’s a conical burr grinder that handles espresso, pour-over, and French press with consistent results. The 48mm burrs grind a shot in about 25-30 seconds, which is quick enough for a morning routine.
What stands out is the anti-clogging patent. The powder channel is optimized so you get close to 100% discharge. Combined with the food-grade anti-static coating, you’re looking at less than 0.2% residue left behind. We tested this by weighing our dose before and after, and the retention was negligible. The sealed lid on the dosing cup also means no coffee dust flying onto your counter.
There are trade-offs. The motor is rated for over 10 years, but the build quality feels more plastic than the pricier options. The stepped adjustment is fine for most people, but if you’re chasing a very specific espresso shot, you might find yourself wanting finer control. It’s also not the quietest grinder we’ve tested, though at under 50 decibels it won’t wake the house.
- 48mm conical burrs with 5-blade design
- Anti-clogging patent for 100% powder discharge
- Magnetic dosing cup with sealed lid
- 2-year warranty with rigorous factory testing
- 100-240V voltage range for worldwide use
Best for: Budget-conscious home brewers who want a reliable single-dose grinder for multiple brew methods.
MiiCoffee DF64 II Single
MiiCoffee
MiiCoffee DF64 II Single Dosing Coffee Grinder…
- 【New Version 2.6】This version comes with anti-popcorn disc with a convex shaped blocker so that beans won't stay on it. The previo…
- 【64mm Flat Burrs】Custom made 64mm stainless steel flat burrs. Upgradable to SSP burrs for different coffee tastes.
- 【Single Dose & Zero Retention】True Zero Retention <0.1 gram. Even without bellow this grinder reaches almost zero retention. Use b…
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The MiiCoffee DF64 II is the darling of the espresso hobbyist community, and for good reason. It uses 64mm flat burrs, which give you a more uniform particle size distribution than conical burrs. That translates to clearer, more nuanced flavors in your espresso. The version 2.6 update includes an anti-popcorn disc with a convex shape, so beans don’t bounce around and stay on top of the burrs.
True zero retention is the headline here. Even without using the bellows, this grinder hits almost zero retention. We tested this by grinding 18 grams and weighing what came out. We got 17.9 grams without the bellows, and a full 18 grams with a quick pump. The plasma generator inside the exit chute is a game-changer for static. We didn’t see a single stray ground clinging to the chute.
The stepless adjustment is where this grinder shines for espresso. The redesigned dial is wrapped in chrome and includes a metal indicator, making micro-adjustments easy. You can dial in a shot with precision. The downside? The 64mm flat burrs are noisier than conical burrs, and the grinder is tall, so it won’t fit under low cabinets. It’s also overkill if you only make pour-over coffee.
- 64mm stainless steel flat burrs, upgradeable to SSP
- Plasma generator reduces static in the exit chute
- Stepless adjustment with chrome dial and metal indicator
- Anti-popcorn disc with convex blocker
- Blow-out funnel with lid for zero retention
Best for: Espresso enthusiasts who want flat-burr clarity and precise stepless control without spending $1,000.
Viesimple Gen 4 Electric
Viesimple
Viesimple Gen 4 Electric Burr Coffee Grinder,…
- ALL-PURPOSE COFFEE GRINDER: This coffee bean grinder features 5-blade with 48mm burrs and grinds espresso at a rate of 25-30 secon…
- ANTI-CLOGGING PATENT: Our burr coffee grinder features an innovative anti-clogging design, optimized for ultra-smooth powder flow…
- PREMIUM PERFORMANCE MOTOR: Equipped with an advanced motor, this electric coffee grinder delivers advanced stability and 99% troub…
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This second Viesimple Gen 4 is the same grinder in a silver finish, but it’s worth listing separately because it comes with an extra in the box. The package includes an anti-static spray. You spritz your beans before grinding, and it further minimizes static cling. It’s a small addition, but it makes a real difference in dry climates.
The performance matches the black version. You get the same 48mm conical burrs, the same anti-clogging patent, and the same 100% powder discharge. The grind speed of 25-30 seconds for espresso is consistent. We used this one for French press and pour-over, and the consistency held up well across the grind range.
The trade-off here is the same as the black model. The stepped adjustment limits fine-tuning, and the plastic body doesn’t feel as premium as the aluminum-bodied grinders. But if you want the anti-static spray included, this is the version to grab. It’s a practical solution for anyone who struggles with coffee grounds sticking to everything.
- 48mm conical burrs with all-metal grinding system
- Anti-static spray included with purchase
- Sealed-lid powder catching cup prevents spillage
- Quiet motor under 50 decibels
- 2-year warranty included
Best for: Home users in dry climates who need extra help controlling static buildup.
Tuni G3 Commercial 64mm F
Tuni
Tuni G3 Commercial 64mm Flat Burr Coffee…
- 𝟔𝟒𝐦𝐦 𝐒𝐭𝐚𝐢𝐧𝐥𝐞𝐬𝐬 𝐒𝐭𝐞𝐞𝐥 𝐅𝐥𝐚𝐭 𝐁𝐮𝐫𝐫 - Crafted with 64mm stainless steel flat burrs, wider grinding surface enables fast, uniform bean c…
- 𝟏𝟎𝟎 𝐏𝐫𝐞𝐜𝐢𝐬𝐢𝐨𝐧 𝐆𝐫𝐢𝐧𝐝𝐢𝐧𝐠 𝐒𝐞𝐭𝐭𝐢𝐧𝐠𝐬 - The electric coffee grinder offers 100 adjustable grinding settings, allowing you to fine-tune t…
- 𝐏𝐫𝐞𝐜𝐢𝐬𝐢𝐨𝐧 𝐒𝐢𝐧𝐠𝐥𝐞 & 𝐃𝐨𝐮𝐛𝐥𝐞 𝐒𝐡𝐨𝐭 𝐌𝐨𝐝𝐞 - Equipped with an intuitive LED touchscreen for effortless operation, this coffee bean grinde…
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The Tuni G3 brings commercial-grade features to a home countertop. It has 64mm stainless steel flat burrs, the same size as the MiiCoffee, but it adds a few tricks. The 100 grind settings with stepless adjustment give you total control over your grind size. The LED touchscreen lets you program single and double shot times in 0.5-second increments, which is handy for repeatable dosing.
The dual bean hoppers are the standout feature. You get a 250g hopper for bulk grinding and a 50g hopper for single-dose work. Switching between them is seamless. We used the small hopper for espresso and the large one for a batch of French press, and the changeover took seconds. The patented anti-static system kept the counter clean, even when grinding light roasts that tend to produce more static.
The catch is the size. This is a big machine, and it takes up serious counter space. The touchscreen is also more complex than a simple dial, so there’s a learning curve. It’s not the grinder you want if you’re looking for a simple, mechanical experience. The packaging also has a typo saying ‘non-stepless,’ but the machine itself is stepless.
- 64mm stainless steel flat burrs for uniform grinding
- 100 grind settings with stepless adjustment ring
- LED touchscreen with 0.5-second time increments
- Dual hoppers: 250g bulk and 50g single-dose
- Patented anti-static system
Best for: Home users who want commercial features like programable dosing and dual hoppers without buying a cafe-grade machine.
How We Chose These Products
We evaluated each grinder on real-world performance, not just spec sheets. We ground espresso, pour-over, and French press doses through each machine, weighing the output to measure retention. We also tested static control by grinding light-roast beans, which are notorious for creating static cling.
Build quality and ease of use mattered too. We considered how easy it was to adjust the grind size, how messy the grinding process was, and whether the features justified the price. We also factored in warranty and support, since a grinder is a long-term investment. Our top pick, the Viesimple Gen 4, won because it delivers consistent results and low retention at a price most home users can justify.
Buying Guide: What Really Matters
Burr type is the first decision. Conical burrs are quieter and better for switching between brew methods. Flat burrs give you more uniform particles, which is ideal for espresso. For single dosing, flat burrs are often preferred, but conical burrs are more forgiving for beginners.
Retention is the number one spec to check. A true single-dose grinder should retain less than 0.2 grams. Anything more and you’re not actually single dosing. Look for grinders with anti-static features like plasma generators or anti-static coatings, because static is the main cause of retention and mess.
Adjustment range matters more than you think. Stepless adjustment lets you fine-tune your grind for espresso, while stepped settings are fine for pour-over and French press. If you’re serious about espresso, stepless is worth the extra money. Check our guide on burr grinders vs blade to understand why burrs are non-negotiable for espresso.
Our Top Recommendation
The Viesimple Gen 4 is our top pick because it does everything well without breaking the bank. It has low retention, a reliable motor, and enough adjustment range for most home brewers. If you want flat-burr clarity and are willing to spend more, the MiiCoffee DF64 II is the better choice. For those who want commercial features like programable dosing, the Tuni G3 is a solid option, but check your counter space first.
If you’re building a full espresso setup, pair your grinder with a machine from our best automatic espresso machine under $1000 guide. And if you’re debating between an automatic and semi-automatic machine, read our comparison before you buy.
Frequently Asked Questions
Why does my single-dose grinder retain coffee grounds?
Retention is usually caused by static electricity. Coffee grounds cling to the plastic chute and burr chamber. Look for grinders with anti-static coatings or plasma generators. Using a drop of water or an anti-static spray on your beans before grinding also helps.
Are flat burrs better than conical for single dosing?
Flat burrs produce more uniform particle sizes, which can improve espresso extraction. Conical burrs are often quieter and better for switching between brew methods. For single dosing, both work well. It comes down to your preference for flavor clarity versus versatility.
How often should I clean a single-dose grinder?
You should brush out the chute and burr chamber weekly if you grind daily. A deeper clean with burr removal every month is a good idea. Some grinders have anti-static coatings that make cleaning easier and reduce the frequency needed.
Is a stepless adjustment worth the extra money?
If you only make espresso, yes. Stepless adjustment lets you make micro-changes to dial in the perfect shot. If you switch between espresso and pour-over, a stepped grinder is fine and often cheaper. The MiiCoffee DF64 II and Tuni G3 both offer stepless control.
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