Pietro B Modal Multipurpose Burrs
Tech Specs
Tech Specs
In The Box
In The Box
Warranty
Warranty
Introducing the Pietro B-Modal Multipurpose Burrs. 58mm flat burrs with industrial Dark-T coating, engineered by Fiorenzato for coffee enthusiasts who want one burr set that handles everything from espresso to pour over. Designed and manufactured in house at Fiorenzato's Italian facility, drawing on 80+ years of grinder engineering heritage. These burrs sit at the heart of what makes Pietro the only hand grinder on the market with vertical flat burrs.
Multipurpose Bimodal Geometry
Where the M-Modal Pro Brewing burrs produce a tight unimodal distribution for filter clarity, the B-Modal geometry deliberately creates a bimodal particle curve: a balanced mix of fines and boulders that delivers body, texture, and the tactile mouthfeel that espresso needs. The same geometry also handles filter and pour over cleanly, making this the burr set of choice for anyone brewing across multiple methods.
One Pietro grinder, one burr set, espresso to V60 to French press. Dial in your settings once for each method, jump between them with the click stop adjustment, and pull professional quality grinds without swapping hardware.
Dark-T Coating, 5x Longer Burr Life
The Dark-T coating layers titanium, aluminium, carbon, and nitrogen onto the Böhler M340 steel base. The result is a surface hardness that extends working life to approximately five times that of uncoated burrs. For a hand grinder you'll be using daily for years, the longevity story matters. These are burrs you buy once and forget about.
Frequently Asked Questions
What are the Pietro B-Modal Multipurpose Burrs?
The Pietro B-Modal Multipurpose Burrs are 58mm flat steel replacement burrs made by Fiorenzato, designed to handle the full spectrum of brewing methods from espresso through to filter coffee. The bimodal grind geometry produces a balanced mix of fines and boulders that delivers body and texture for espresso while still producing clean, expressive filter grinds.
What is the difference between B-Modal and M-Modal burrs?
The B-Modal Multipurpose burrs produce a bimodal particle distribution, ideal for espresso, milk drinks and versatile multi-method brewing. The M-Modal Pro Brewing burrs produce a unimodal distribution optimised for filter coffee, delivering maximum cup clarity and aromatics. Choose B-Modal if you brew espresso or want one burr set for everything. Choose M-Modal if you brew filter exclusively and want the cleanest possible cup.
What is the Dark-T coating and why does it matter?
Dark-T is Fiorenzato's proprietary multi-layer coating that combines titanium, aluminium, carbon and nitrogen on a Böhler M340 steel base. The coating significantly increases surface hardness, extending burr life to approximately five times that of standard uncoated M340 burrs. For a hand grinder you use daily, this means consistent grind quality for many years before any need for replacement.
Are the B-Modal burrs compatible with both Pietro grinder models?
Yes, the Pietro B-Modal Multipurpose Burrs are interchangeable and compatible with both the Pietro Multipurpose and Pietro Pro Brewing hand grinder models. You can also swap between B-Modal and M-Modal burr sets within the same grinder to experiment with different flavour profiles for different brew methods.
How easy is it to swap the burrs?
Burr changes on the Pietro are tool free and typically take under a minute. The grind chamber is easily removable, giving quick access to the burr set. Once swapped, you simply re-dial your preferred grind setting for each brew method using the click-stop adjustment dial.
What is included in this purchase?
This listing includes one set of B-Modal Multipurpose burrs (two burrs in total) and the mounting screws required to fit them. The Pietro hand grinder itself is sold separately. If you are looking to purchase a complete Pietro grinder, please see our Pietro grinder listings.
