Option-O
Option-O | 102mm Mizen Flat Burrs - Blind Mount
Best high-end burr upgrade for clarity-focused espresso and pour-over enthusiasts.
Elevate your coffee experience with the Option-O 102mm Mizen Flat Burrs. Engineered in Australia and crafted in China, these burrs offer exceptional precision for both espresso and pour-over. They enhance flavor separation, clarity, and sweetness, resulting in a balanced, juicy cup. The uniform grind minimizes fines, providing a forgiving sweet spot for espresso dialing. Featuring a proprietary finishing process on hardened stainless steel, these burrs ensure superior performance and durability for your grinder.
$523.00
Owner Satisfaction
4.8
/ 5
Category Rank
5
/ 879
#5 in Coffee Grinder Accessories
Price vs Category Average
+627%
Above average
Burr Size
102
/ mm
Who it's for
- Specialty coffee lovers seeking maximum flavor clarity
- High-volume users needing rapid, cool grinding performance
- Commercial cafe owners requiring long-lasting, durable equipment
Who should skip it
- Budget-conscious home brewers prioritizing value over performance
- Owners of standard grinders seeking universal upgrade options
- Casual users intimidated by complex calibration and alignment
Performance breakdown
Flavor Clarity
Exceptional separation highlights delicate notes in complex light roast coffees.
Grind Uniformity
Precision engineering minimizes fines for a remarkably clean and balanced cup.
Espresso Forgiveness
Wide sweet spot makes dialing in shots intuitive and stress-free.
Build Precision
Tight 5-micron tolerances ensure consistent performance across every single grind.
Brew Versatility
Seamlessly transitions from high-clarity espresso to vibrant, juicy pour-over brews.
Durability
Hardened stainless steel construction promises long-term reliability for heavy daily use.
Key Specs
Burr Size
102mm
Material
Hardened stainless steel
Grind Precision
Flat ground to 0.005mm (5 micron) specification
Finishing
Proprietary treatment process
Compatibility
102mm burr carriers
Origin
Engineered in Australia, Made in China
Accessory Type
Replacement Burr Set
Burr Shape
Flat
Features
- Versatile grinding for espresso and pour-over
- Enhances flavor separation, clarity, and sweetness
- Produces a balanced, clean, and juicy cup
- Uniform grind with low fines
- Forgiving sweet spot for dialing in espresso
- Proprietary finishing process for unique surface properties
- Engineered in Australia, made in China
- Includes blind-mounting hardware
What customers say
Enthusiasts consistently praise the Option O Mizen 102mm burrs as a transformative upgrade for compatible grinders. The core focus is exceptional flavor clarity and separation, especially evident in light roasts and high extraction espresso. Users report increased sweetness and uniformity due to the precise geometry minimizing fines. While the engineering quality is top tier, these burrs are strictly for a niche market requiring specific, high-cost grinders. For owners of compatible equipment seeking peak flavor performance, the Mizen burrs are an essential, highly recommended component that delivers results justifying the premium investment.
Know before you buy
These burrs are designed to prioritize clarity, flavor separation, and sweetness. You can expect a clean, juicy cup that highlights the distinct notes of your coffee, making them ideal for those who prefer modern, high-clarity extractions.
Yes, they are engineered to be versatile. The uniform grind distribution and low fines production perform well across the spectrum, from dialing in a balanced espresso shot to brewing a clean pour-over.
The Mizen burrs are designed with a forgiving sweet spot, which makes dialing in espresso more approachable. The high precision and low fines help reduce the frustration of minor adjustments, allowing for more consistent results.
The blind mount design refers to the specific mounting pattern that does not require screws to pass through the burr face. This ensures a perfectly flat surface and includes the necessary hardware to securely attach them to compatible 102mm burr carriers.
The proprietary treatment modifies the surface properties of the hardened stainless steel to improve performance and longevity. This process is specifically intended to maintain grind consistency and durability over time.
These burrs are compatible with grinders that utilize a 102mm flat burr carrier system. Please verify that your specific grinder model supports the blind-mount geometry before purchasing.
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$523