Embarking on the journey of freshly ground coffee can transform your daily ritual, elevating a simple cup into an exquisite experience. For many coffee enthusiasts, the first step into this world begins with a reliable manual grinder, and the Hario Mini Mill Slim Plus has long been a contender for that crucial role. But does this compact, ceramic burr coffee grinder truly live up to its reputation as a go-to choice for quality and convenience? Let’s dive deep into an honest review to help you decide if it’s the perfect companion for your brewing adventures, whether at home or on the go.
The Appeal of Manual Burr Coffee Grinders
Before we dissect the Hario Mini Mill Slim Plus, it’s worth understanding the enduring charm of manual burr coffee grinders. In an age dominated by electric appliances, hand grinders offer a unique connection to the coffee-making process. They are celebrated for their portability, quiet operation, and often, their ability to deliver a consistent grind that electric blade grinders simply cannot match. With ceramic burrs, as found in the Hario Mini Mill Slim Plus, coffee beans are crushed rather than chopped, leading to a more uniform particle size essential for optimal flavor extraction. This results in a cleaner, more nuanced cup, allowing you to truly appreciate the intricate notes of your chosen beans.
Hario Mini Mill Slim Plus: At a Glance
The Hario Mini Mill Slim Plus is a popular entry-level manual burr coffee grinder known for its compact design and affordability. Here’s a quick overview of its key specifications:
| Feature | Specification |
|---|---|
| Burr Type | Ceramic Conical Burrs |
| Body Material | Durable Plastic (Acrylic & Polypropylene) |
| Shaft/Handle | Stainless Steel shaft, improved crank arm |
| Capacity | Approximately 24 grams (for beans) |
| Weight | ~8.7 oz (247 grams) |
| Grind Settings | Stepped adjustment (click system) |
| Ideal Use | Single servings, travel, pour-over, AeroPress |
In-Depth Review: Hario Mini Mill Slim Plus
As someone who has spent over a decade immersed in the world of coffee grinders, I’ve seen countless models come and go. The Hario Mini Mill Slim Plus, however, has maintained its presence, evolving slightly to meet user feedback. Here’s a closer look at what makes this grinder tick.
Design and Build Quality
|
Our Picks for the Best Coffee grinder in 2026
As an Amazon Associate I earn from qualifying purchases.
|
||
| Num | Product | Action |
|---|---|---|
| 1 | Hamilton Beach Fresh Grind Electric Coffee Grinder for Beans, Spices and More, Stainless Steel Blades, Removable Chamber, Makes up to 12 Cups, Black |
|
| 2 | Cuisinart Coffee Grinder, Electric One-Touch Automatic Burr Coffee Grinder with 18-Position Grind Selector, Cup Size Selector for 4 – 18 Cups, DBM-8P1, Black Stainless |
|
| 3 | Amazon Basics Electric Coffee Grinder, Coffee Bean and Spice Grinder, With Heavy-Duty Stainless Steel Grind Blades |
|
| 4 | BLACK+DECKER One Touch Coffee Grinder, 2/3 Cup Coffee Bean Capacity, Spice Grinder, One Touch Push-Button Control -150 Watts -Stainless Steel Blades |
|
| 5 | Automatic Coffee Machine, 20-Bar Pressure Espresso Maker with Built-in Grinder, 15-Precision Settings, One-Touch Latte & Cappuccino System, Smart Self-Cleaning |
|
| 6 | Wancle Electric Coffee Grinder, Spice Grinder, One Touch Coffee Mill for Beans, Spices and More, with Clean Brush Black |
|
| 7 | Hamilton Beach Custom Grind Electric Coffee Grinder for 4-14 Cups, One-Press Hand-Free Operation with Auto Shutoff, Removable Grinding Bowl For Easy Pour and Clean, Stainless Steel (80406) |
|
| 8 | SHARDOR Professional Conical Burr Coffee Grinder, Coffee Bean Grinder with 48 Grind Settings for Espresso, Drip & French Press, Upgraded Anti-Static Technology, Precision Timer, Stainless Steel |
|
| 9 | OXO Brew Conical Burr Coffee Grinder - Silver, Stainless Steel Burrs, One-Touch Automatic Smart Grind |
|
| 10 | Cuisinart Coffee Grinder, One Touch Control Coffee Bean Grinder with Stainless Steel Bowl and Blades, 2.5 oz/70g Capacity Enough for 12 Cups, On/Off Switch with Safety Interlock, DCG-20BKN, Black |
|
The Mini Mill Slim Plus boasts a design that is both functional and aesthetically pleasing, featuring an all-black, sleek look compared to its predecessor. While primarily constructed from durable plastic (acrylic and polypropylene for the housing), the materials don’t feel cheap. Instead, they lend themselves to a remarkably lightweight and robust body, making it surprisingly resilient to the bumps and drops that often accompany travel. The internal functional components, including the shaft and grinding mechanism, are made of stainless steel and ceramic, offering a reassuring sense of quality where it counts most. One significant improvement in the “Plus” version is the enhanced crank arm, which is more robust and fits securely, addressing previous issues of the handle loosening during grinding. This refined design contributes to a more stable and less frustrating grinding experience.
Hario Mini Mill Slim Plus coffee grinder, all-black, ergonomic design, improved crank arm.
Grind Performance and Consistency
At the heart of any coffee grinder is its ability to produce a consistent grind, and the Hario Mini Mill Slim Plus, with its ceramic conical burrs, generally performs well in this regard for finer settings. For methods like pour-over, AeroPress, or even fine enough for espresso (though it requires patience), it delivers a respectable grind uniformity. The ceramic burrs generate less heat than metal burrs, which helps preserve the delicate aromatics of your coffee beans, ensuring a fresh and flavorful cup.
However, its performance for coarser grinds, such as those required for a French Press, is where some limitations emerge. The burr set can exhibit a slight wobble at looser settings, leading to a less consistent particle size with noticeable “fines” and “boulders.” While some users have found success with simple modifications to stabilize the burrs, it’s an important consideration if your primary brewing method demands a very coarse and uniform grind.
Ease of Use and Grinding Experience
Using the Hario Mini Mill Slim Plus is a straightforward affair, embodying the simplicity that many seek in a manual grinder. The slim profile of the grinder makes it comfortable to hold, though its smooth plastic exterior may require a firmer grip for some, especially when grinding harder beans. Grinding 20 grams of coffee typically takes about a minute of effort. While this might sound like a workout, many find the rhythmic action a satisfying ritual, a moment of calm before the caffeine rush.
Adjusting the grind size is done via a stepped click system, using a nut located beneath the burrs. You turn the nut clockwise until it’s tight (the zero point), then count the clicks as you turn it counter-clockwise to reach your desired coarseness. While simple, remembering your preferred settings after disassembling for cleaning can be a bit of a guessing game, sometimes requiring a few trial and error grinds to dial it back in.
Portability and Travel Friendliness
This is where the Hario Mini Mill Slim Plus truly shines. Weighing in at less than 250 grams and boasting a compact footprint, it’s an ideal travel companion. It slips easily into a backpack or suitcase without adding significant bulk or weight, making fresh coffee accessible whether you’re camping, traveling for business, or simply visiting friends. Its durable plastic construction, as mentioned earlier, also means you don’t have to fret too much about accidental bumps or drops on your adventures.
Hario Mini Mill Slim Plus used for coffee during travel or outdoor adventure.
Maintenance and Durability
Cleaning the Hario Mini Mill Slim Plus is relatively simple. The grinder can be easily disassembled, allowing you to brush away coffee grounds and rinse the parts with a mild, neutral detergent. It’s crucial to ensure all components are thoroughly dry before reassembly to prevent damage and maintain hygiene.
In terms of durability, for its price point, it’s quite resilient. The ceramic burrs, while generally long-lasting, are the most delicate part and could chip if subjected to a hard drop. While the “Plus” version addresses some of the earlier models’ wear issues with the handle, like any mechanical device, consistent heavy use over many years might eventually lead to some component fatigue. However, for casual to moderate daily use, it’s built to last.
“For budget-conscious coffee lovers or avid travelers, the Hario Mini Mill Slim Plus offers an unbeatable combination of portability, freshness, and decent grind quality, making it a true value champion.” – CoffeeGrinderChoice.com Admin, Coffee Grinder Technician
Is the Hario Mini Mill Slim Plus Right for You?
Deciding on the perfect coffee grinder comes down to your individual needs and brewing habits.
Choose the Hario Mini Mill Slim Plus if you are:
- Budget-conscious: It offers excellent value for its performance, making it a fantastic entry-level grinder.
- A frequent traveler: Its lightweight and compact design, combined with robust plastic construction, makes it perfect for on-the-go coffee.
- A single-serving brewer: With a 24-gram capacity, it’s ideal for grinding just enough beans for one or two cups.
- Primarily brewing pour-over, AeroPress, or moka pot: It excels at producing the medium-fine to fine grinds needed for these methods.
- Someone who enjoys the ritual of hand grinding: The manual process can be a meditative and satisfying part of your morning.
Consider Alternatives if you:
- Prioritize French Press or cold brew: The grind consistency at coarser settings can be a drawback for these methods.
- Need to grind for multiple people daily: The limited capacity and manual effort can become tedious for larger batches.
- Prefer ultimate convenience: An electric burr grinder might be a better fit if speed and minimal effort are your top priorities.
- Seek perfect grind consistency across all settings: While good, it won’t match the uniformity of higher-end manual or electric grinders.
Pros and Cons Summary
Pros:
- Highly affordable, offering great value for money.
- Extremely portable and lightweight, perfect for travel.
- Durable plastic construction, resistant to minor impacts.
- Provides consistent grind for fine to medium-fine settings.
- Quiet operation compared to electric grinders.
- Easy to disassemble and clean.
- Improved handle and stability in the “Plus” version.
Cons:
- Grind consistency can be poor at coarser settings (e.g., French Press).
- Requires manual effort, which can be time-consuming for multiple servings.
- Grind adjustment can be hard to track after disassembly.
- Limited bean capacity (around 24g).
- Smooth body may require a firm grip during grinding.
Conclusion
The Hario Mini Mill Slim Plus Coffee Grinder stands out as a reliable, affordable, and highly portable option for anyone looking to elevate their coffee experience without breaking the bank. While it might not deliver the absolute pinnacle of grind consistency for every brewing method, especially at the coarser end of the spectrum, its strengths for single servings, travel, and fine to medium-fine grinds make it an exceptional value. If you’re ready to embrace the satisfying ritual of fresh grinding and are seeking a durable companion for your daily brews or adventures, the Hario Mini Mill Slim Plus is an excellent choice to kickstart your journey into specialty coffee. What brewing method will you elevate first with your freshly ground beans?
Frequently Asked Questions
How do I adjust the grind setting on the Hario Mini Mill Slim Plus?
To adjust the grind, first remove the handle and the locking plate. Then, turn the adjustment nut clockwise until it’s fully tightened (this is your zero point). From there, turn it counter-clockwise and count the “clicks” for your desired fineness. Fewer clicks for finer, more clicks for coarser.
Is the Hario Mini Mill Slim Plus good for espresso?
It can grind fine enough for espresso, but achieving perfect consistency can be challenging due to its stepped adjustment and potential burr wobble at finer settings. It also requires considerable effort and time to grind enough for an espresso shot.
How much coffee can the Hario Mini Mill Slim Plus hold?
The bean hopper has a capacity of approximately 24 grams of whole coffee beans, which is typically enough for a single serving of pour-over or AeroPress.
What is the difference between the Hario Mini Mill Slim and the Slim Plus?
The “Plus” version features several improvements, including a more robust and securely fitting crank arm, and a sleek all-black aesthetic. These enhancements address some of the durability and ease-of-use concerns of the original Mini Mill Slim.
How do I clean my Hario Mini Mill Slim Plus?
Disassemble the grinder by removing the handle, locking plate, and burr assembly. Brush off any loose coffee grounds, then rinse all parts with a mild detergent and water. Ensure all components are completely dry before reassembling to prevent rust or damage.
