Grinder Burrs

A catalog of grinder burr sets. Each entry presents the in-cup flavor profile, particle distribution, material and coating, and the sizes available. Under each size, the compatible grinders are listed along with notes on what changes between sizes of the same series.

Filter by maker & geometry

13 burr sets

EurekaFlat55mm

Eureka Mignon Specialita Burrs

55mm flat steel burrs from Eureka, Italy. The standard in their Mignon home grinder series. Consistent espresso with a classic Italian café profile that fits a daily routine.

Italian home/light commercialDaily espresso routineMedium to dark roasts

KafatekFlat98mm

Kafatek LM Shuriken (Monolith)

Kafatek's 98mm LM Shuriken burrs for the Monolith Flat MAX. A proprietary geometry with Alpha coating, designed for espresso at the upper end of home brewing aspirations. Performance that rivals specialty grinders at significant cost.

Monolith Flat MAX exclusiveHigh-end specialtyEspresso-leaning with full filter capability

MahlkönigFlat98mm

Mahlkönig EK43 (Stock 98mm)

The 98mm stock flat burrs from the Mahlkönig EK43 — the breakthrough that turned an industrial grinder into a specialty fixture. The burrs that essentially every specialty flat-burr setup is built around today.

Industrial flat burr originFoundation of specialty filterVersatile across roast levels

MazzerFlat83mm

Mazzer Major

83mm flat burrs from Mazzer, a cornerstone of European commercial espresso grinders for decades. Espresso with notable body, deep sweetness, and classic Italian character.

Italian commercial classicEspresso-focusedMedium to dark roasts

MazzerConical71mm

Mazzer Robur

71mm conical burrs from Mazzer, Italy. The classic profile of commercial espresso. Full body, deep sweetness, and less clarity compared to specialty flat sets.

Conical geometryEspresso-focusedMedium to dark roasts

Niche / MazzerConical63mm

Niche Zero (Stock Conical)

63mm conical burrs from the Niche Zero, manufactured by Mazzer in Italy. Full body and forgiving sweetness, friendly to light roasts thanks to the grinder's near-zero retention design.

Conical home grinder favoriteForgiving across roast levelsEspresso and filter capable

Option-OFlat64mm

Option-O Mizen 64

Option-O's in-house Mizen burrs, designed for the Lagom grinder line. The geometry targets high flavor separation and a sweet, juicy cup profile for modern light roasts.

Designed for modern light roastsHigh flavor separationSweet, juicy cup profile

SSPFlat64mm / 98mm

SSP Cast Brew

SSP's Brew line, designed for filter. The geometry minimizes fines and emphasizes flavor separation in light roasts. The cup comes out clean with the kind of sweetness characteristic of filter rather than espresso.

Filter-specializedVery low finesLight to medium-light roasts

SSPFlat64mm / 83mm / 98mm

SSP Cast HU

SSP's HU series produces a narrow bimodal particle distribution. In filter, the cup leans clean with a tea-like body and the delicate aromatic detail standard burrs tend to blur. In espresso the distribution shifts the cup toward fuller body with clear flavor separation.

Bimodal narrow distributionLight to medium roastsPour-over and light-roast espresso

SSPFlat64mm / 83mm

SSP Cast MP

SSP's MP (Multi-Purpose, Unimodal) series. The unimodal-leaning distribution produces high clarity with pronounced acidity. In filter the cup leans clean and tea-like; in espresso it tends more acidic than standard burrs with medium body and a long aftertaste.

Espresso and filterLight to medium roastsPronounced acidity

SSPFlat64mm

SSP Lab Sweet (Cast)

SSP's Lab Sweet line. The approach is to balance sweetness and clarity, without going to the extreme of HU on one side or standard burrs on the other. Two versions (V2, V3) with different leanings.

Sweetness-forwardDLC-coated, low retentionV2 (filter) and V3 (espresso) variants

Weber WorkshopsFlat80mm

Weber Workshops EG-1 Core (DB-1)

The standard burr set for the EG-1. The DB-1 versatile geometry balances sweetness, body and clarity. Equally suited to espresso and filter, considered Weber's recommended default.

EG-1 default setEspresso and filter equallyBalanced cup

Weber WorkshopsFlat80mm

Weber Workshops EG-1 Ultra (DB-2)

Weber Workshops' advanced burr set for the EG-1 grinder. The DB-2 geometry is engineered for maximum clarity, high extraction control, and exceptional flavor separation. Considered a high-water mark for specialty filter performance.

Engineered for EG-1 onlyMaximum clarityDesigned for pour-over and precision espresso