| Procedure: | Full-Automatic |
|---|---|
| Type: | Espresso Coffee Maker |
| Capacity: | Determined by The Finished Machine |
| Processlng Material: | Coffee Bean |
| Usage: | Built-in Coffee Grinder |
| Style: | Italian |
| Customization: |
|---|
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Audited Supplier 
| Two Common Types of Coffee Grinders | |
| Conical Burr | Flat Burr |
| More of a V shape, with the center burr fitting into the outer burr, both of them also lined with sharp-edged grooves that cut up the beans as they press together. | Consist of two flat, ring-shaped burrs lined with grooves that break up the beans as the burrs press together. |
| 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 | - |
| Four Things You Want to Know about Coffee Grinders | ||
| 1. Electric vs. Manual | Electric Grinder | Manual Grinder |
| PROS | Grinds large quantities of coffee fast Durable materials and parts Extensive grind settings |
Affordable Portable Quiet Multiple grind sizes |
| CONS | Loud Requires electricity Low-quality grinders wear down easily Performance is based on price |
You have to work for it. Less efficient |
| 2. Blade vs. Burr | Blade Grinder | Burr Grinder |
| PROS | Affordable Simple use Small size |
Consistent grind size Numerous grind settings Little to no heat Quality burr materials |
| CONS | Inconsistent grind size Heat Low-quality materials and parts |
Can be expensive |
| 3. Flat vs. Conical Burr | Flat Burr | Conical Burr |
| PROS | Remarkably even particle size Best for commercial use |
Cheaper Quieter Consistent grind Good for home use and espresso |
| CONS | More expensive | Less efficient |
| 4. Ceramic vs. Steel Burr | Ceramic Burr | 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 |
Suppliers with verified business licenses
Audited Supplier 
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