YEH-83C Coffee Grinder
YEH-83C Coffee Grinder
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Free Repair
12-Month Full Warranty
Lifetime After-Sales
The 83mm conical burrs. A 2000W FOC-controlled motor. Stepless 0–200 grind adjustment with 5-micron precision. Built for rich espresso, balanced pour-over, and everything in between—with ≤0.1g retention and smooth, low-static output.
Key Features:
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83mm Conical Burr Set: Produces rich body, balanced sweetness, and a layered flavor profile for espresso, pour-over, and other brewing methods.
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2000W FOC-Controlled Motor: Delivers stable torque under changing loads for smooth, consistent grinding without noticeable speed drop.
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Variable-Speed Grinding: Adjustable RPM gives you greater control over particle distribution, extraction, and flavor presentation.
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≤0.1g Low Retention: The optimized single-dose grinding path minimizes retained grounds, coffee waste, and cross-contamination between beans.
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Low-Static Grounds Discharge: Promotes smooth grounds flow with less clumping, scattering, and chute blockage.
- Quick-Access Burr Chamber: Removing four top screws provides direct access to the burrs and grinding chamber for routine cleaning.
Note:
- Product photos are for illustration purpose only and minor revisions may occur - the current shipping units will always be the most current model.
- Delivery time may take 2-4 weeks, depending on the supply of burr
and the assembly of the products.
YEH-83C Single‑Dose Grinder
- 83mm conical burrs, 0.02mm grind resolution
- Near-zero retention – no stale grounds carryover
- 150-1600 rpm variable speed for any roast
- Quick-release burr system, no tools needed
Precision Engineering
Machined to 0.01mm Consistent every dose
- 0.01–0.02mm grinding accuracy
- Angular contact bearing spindle with micron-level runout
- Unibody aluminum construction — no tolerance accumulation
Precision Adjustment
Micron-Level Precision Adjustment
Whether you need a microscopically tight range for light-roast espresso or a crisp profile for pour-over, this built-in-house mechanism delivers absolute alignment—ensuring a consistent dose and flawless particle distribution every single time.
Compatible Burrs
83mm Conical Burrs
83mm conical burr, Its conical grinding geometry produces a layered particle distribution suited to rich espresso, milk-based drinks, and balanced filter coffee.
YEHJEN R&D History
Detail
| Coffee Grinder Burr | 83mm Conical Burrs |
| Color | Silver Black / All Black |
| Grinding Accuracy | 0.01~0.02mm |
| Grinding Residue | ≤0.1g |
| Power Supply | 220V, 50/60Hz |
| Bean Capacity | 25-35g |
| Size | 220x150x330mm |
| Weight | 12.5kg |
| Materials | Machine body is made of integrated aluminum alloy, and the internal blade mounting bracket is made of SUS304. |
FAQ
What grind settings should I start with?
For espresso with the stock burr, start at dial position 3 and a motor speed of 1000–1500 RPM. For pour over, try 10–11.5 at 200–700 RPM. Light roasts need finer settings; dark roasts need coarser. On first power-on, set the dial to position 30 (not 0) to avoid burr contact.
How often should I clean the grinder?
A full deep clean is recommended every 15 days. Unplug first, detach the powder spout and hopper, unscrew the 4 top bolts with the included hex key, and lift the upper section to expose the burrs. Clean with the included brush or a small vacuum. Wipe mating surfaces before reassembling.
What are the benefits of an 83mm conical burr grinder?
An 83mm conical burr grinder provides a large grinding surface and produces a layered particle distribution commonly associated with rich body, balanced sweetness, and a full mouthfeel. This makes the YEH-83C especially suitable for espresso, ristretto, moka pot, and milk-based coffee drinks while remaining versatile enough for filter coffee.
Can the grinding speed be adjusted?
Yes. The YEH-83C is a variable-speed coffee grinder, allowing users to adjust the burr speed for different coffees and brewing methods. Variable RPM provides greater control over grinding behavior, particle distribution, and the resulting flavor profile.
Is the YEH-83C compatible with other conical burr sets?
The YEH-83C includes an 83C multipurpose conical burr set and supports compatible 83mm conical burr sets. Because mounting requirements and burr geometry may vary, compatibility should be confirmed with YARRAMATE before purchasing or installing another burr set.
Will my grind setting change after cleaning or a burr swap?
No. The patented internal leveling mechanism and independent spindle are designed so that disassembly for cleaning or burr replacement does not affect grind calibration. Your dial position stays accurate after reassembly.
What voltage does the YEH-83C require?
The YEH-83C requires a 220V AC, 50/60Hz power supply. Confirm that your local electrical system is compatible before ordering or operating the grinder.
Precautions for Scale Adjustment
This machine is manufactured with the 0 mark set as the tool setting position. Do not tighten the scale beyond 0 before turning on the machine, as this may cause wear on the tool disc and affect accuracy.
When adjusting the scale, it is recommended to first set the speed to the lowest setting while the machine is powered on, and then make fine adjustments to the scale. Scale adjustments should follow the principle of "from large to small". For example, if the target scale is 3, you can first back down to 4, and then slowly back down to 3 to obtain a more stable and accurate positioning.
Safety Warning
The equipment has undergone precision testing and blade leveling before leaving the factory. Do not loosen the leveling screws yourself. If disassembly or adjustment is required, please contact after-sales personnel first.
Before disassembling any equipment part, the power must be turned off. It is strictly forbidden to disassemble any equipment part while the machine is powered on, especially critical components such as the bean inlet and powder outlet.
Do not grind anything other than coffee beans. Do not insert fingers or foreign objects into the grinding or powder outlet areas while the equipment is running.
If abnormal noise, odor, or overheating occurs, immediately stop the machine, disconnect the power, and contact after-sales service.