Overview
The Kingrinder K0 is a remarkably affordable hand grinder that punches far above its price point. The 38mm steel conical burrs deliver surprisingly good uniformity for filter coffee, and the aluminum body is well-constructed for the price. The K0 has disrupted the budget hand grinder market by offering steel burr quality at ceramic burr prices. For the absolute most value per dollar in hand grinding, the K0 is hard to beat.
The Kingrinder K0 features a 38mm conical burr set, crafted from steel. Grind retention is approximately 0.1g — virtually zero retention, making it excellent for single dosing.
At $40, the Kingrinder K0 is aimed at budget-conscious coffee lovers just starting their espresso journey. Key workflow features include single-dose design (no hopper needed). As a hand grinder, it's completely silent, portable, and gives you a meditative morning ritual.
The Kingrinder K0 is weighing 0.4 kg, manufactured in China. Its footprint measures 47 x 47 x 165 mm (W×D×H).
Pros & Cons
Pros
- Designed for single dosing — weigh your beans in, get precisely that amount out with minimal waste
- Near-zero retention (0.1g) means almost no stale grounds contaminating your next shot
- Completely silent operation — perfect for early mornings without waking the household
- Fully portable with no electricity required — great for travel and camping
- Excellent value for money — capable espresso grinding at an accessible price point
Cons
- Manual grinding requires physical effort — espresso-fine takes 30-60 seconds of turning
- Not practical for making multiple drinks back-to-back for guests
- Stepped grind adjustment may not allow fine enough tuning between settings for espresso
Full Specifications
| Brand | Kingrinder |
|---|---|
| Model | Kingrinder K0 |
| Category | Hand Grinder |
| Country of Origin | China |
| Year Introduced | 2022 |
| Burr Size | 38 mm |
| Burr Material | Steel |
| Burr Type | 38mm conical |
| Retention | 0.1 g |
| Single Dose | Yes |
| Stepless Adjustment | No |
| Hopper Capacity | 25 g |
| Dimensions (W x D x H) | 47 x 47 x 165 mm |
| Weight | 0.4 kg (0.9 lbs) |
| MSRP | $40 |
Our Verdict
The Kingrinder K0 is a hand grinder, which means it trades speed and convenience for portability, silence, and often better value per dollar of grind quality. At under $100, it's one of the most affordable ways to get espresso-capable grinding. Perfect as a starter grinder or travel companion. If your daily routine involves 1-2 drinks and you enjoy a mindful morning ritual, this is an excellent option. For larger households or back-to-back drinks, consider an electric alternative.
Frequently Asked Questions
Can the Kingrinder K0 grind fine enough for espresso?
Yes, the Kingrinder K0 is capable of grinding fine enough for espresso. You may need to experiment with the stepped settings to find the sweet spot for your beans.
Is the Kingrinder K0 good for single dosing?
Yes, the Kingrinder K0 is designed for single dosing. With only 0.1g of retention, virtually all the coffee you put in comes out ground. Weigh your beans before grinding for the most consistent results.
How long does it take to grind espresso with the Kingrinder K0?
Grinding a single dose (18g) for espresso typically takes 30-60 seconds with the Kingrinder K0, depending on the bean and your desired fineness. It requires moderate physical effort. Most users find it a pleasant morning ritual, but if you make more than 2-3 drinks daily, consider an electric grinder.
How do I maintain the Kingrinder K0?
Clean out retained grounds after each use with a brush or bellows. Deep clean the burrs every 2-4 weeks by removing them and brushing away oil buildup. Hand grinders are easy to disassemble for cleaning. Never wash burrs with water.