| Customization: | Available |
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| Application: | Structure Ceramic, Abrasive Ceramic |
| Material Type: | Alumina Ceramic |
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There are mainly two types of coffee grinders on the market: with flat burrs and with conical burrs. We can't simply say who is good and who is bad when it comes to conical or flat grinding.
Most professional coffee drinkers feel that flat burrs give a more consistent grind, which results in a cleaner cup. Conical burrs, on the other hand, yield more fines and produce a cup with more body feel.
The product you're looking at is made of 95% alumina, an advanced ceramic that will never rust, providing long-lasting performance.
| Mechanical Property | Ceramic Material | |||
| 99.5% Al2O3 |
99% Al2O3 |
95% Al2O3 |
MgO.SiO2 (Steatite) |
|
| Density (g/cm3) | ≥3.90 | ≥3.85 | ≥3.65 | ≥2.70 |
| Water absorption (%) | 0 | 0 | 0 | 0 |
| Hardness (HV) | 1700 | 1700 | 1500 | 800 |
| Flexural strength (Mpa) | ≥379 | ≥338 | ≥320 | ≥190 |
| Compressive strength ( Mpa) | ≥2240 | ≥2240 | ≥2000 | ≥551 |
| Fracture toughness (Mpam1/2) | 4-5 | 4-5 | 3-4 | - |
1. The ceramic grinding burr has a longer lifespan than metal.
2. It will never rust.
3. Environmentally friendly, healthy, electroless, no rust, safer than stainless steel.
4. It is cost-effective, low cost, but has good performance.
5. The ceramic grinding burr is not easy to heat up, making the coffee taste more mellow.
| Ceramic Burr | Stainless Steel Burr | |
| PROS | Burrs stay sharp longer Best for espresso roasts Longer lifespan (less warping, blunting) Full-body taste and mouthfeel |
Burrs start sharper Good for single-source, non-espresso beans Less initial cost Clean taste and mouthfeel |
| CONS | More initial cost Break more easily |
More recurring cost Not great for warmer environments |
Q1: Conical burrs Vs. Flat burrs
True coffee experts will tell you that nothing grinds coffee beans better than a good burr model. There are mainly two types of coffee grinders on the market: with flat burrs or with conical burrs.
Conical burrs: Common in entry-level electric grinders and manual grinders due to their smaller sizes.
When it comes to espresso, conical burrs tend to create a grind with better mouthfeel. Because they are smaller in diameter, they are typically slower.
Flat burrs: Often used in the big, professional espresso grinders. They are fast and efficient but may need to be operated by a professional.
Q2: Are manual coffee grinders better than electric?
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