Grinders / Kingrinder K4
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Kingrinder K4 review (2026)
Kingrinder K4 is a hand grinder that suits Espresso, Moka pot, AeroPress, Pour-over, French press and Cold brew. No EU shop price found yet.
An espresso-leaning 48 mm grinder that reviewers call great value, but it is discontinued and weaker for filter than the K6.
Best for
- Budget espresso with a hand grinder
- Buyers who find one second-hand or as leftover stock
Skip if
- You mostly brew filter coffee
- You make espresso drinks for several people every morning
- You need a new unit with full warranty support
No EU shop price found yet.
Brew methods
Tuned for espresso, only adequate for pourover and French press, and now discontinued.
Delivered price
No EU shop price found yet.
Pros and cons
Pros
- Reviewers say the titanium-coated 48 mm burr gives round, syrupy espresso.
- It grinds fast: CoffeeGeek notes about 20 g in roughly 35 seconds.
- Steps are 16 microns per click on an external ring, which suits dialing in espresso.
- The shaft takes a drill, and the cup has smooth walls that help low retention.
Cons
- It is discontinued, and Kingrinder now sells only the K6.
- Filter cups are narrower and less clear than from the K6 stainless burr.
- Some owners report burr alignment drift, and there is little long-term data on bearing wear.
- Full teardown is more technical than on simpler grinders.
What owners report
- Start here before a 1Zpresso. RoastAroma's owner summary says the community recommends it for budget beginners who mostly make espresso.
- Some wish for a JX. Many long-term owners say they wish they had paid more for a 1Zpresso JX, according to the same summary.
- K4 for darker roasts. Bean Ground's reviewer liked the K6 with lighter roasts and the K4 slightly more with darker ones, as a personal taste call.
What experts measured
- RoastAroma lists retention at about 0.2 g.
- CoffeeGeek notes roughly 20 g ground in about 35 seconds.
Alternatives
Kingrinder K6
Same body with a stainless 7-sided burr, still on sale and clearer for filter.
No EU shop price found yet.
Questions
What is the Kingrinder K4 good for?
It works well for Espresso, Moka pot, AeroPress, Pour-over, French press and Cold brew. Tuned for espresso, only adequate for pourover and French press, and now discontinued.
How much does the Kingrinder K4 cost delivered?
No EU shop price found yet.
Is the Kingrinder K4 a hand or electric grinder?
It is a hand grinder with 48 mm conical, titanium-coated steel burrs and stepped adjustment. It is quiet.
What is the difference between the K4 and K6?
CoffeeGeek says both use 48 mm burrs. The K4 has titanium-plated conical burrs tuned for espresso, and the K6 has heptagonal stainless burrs with more filter clarity.
Can I still buy the Kingrinder K4?
RoastAroma and CoffeeGeek both say it is discontinued. Look for second-hand or leftover retail stock.
Specs
| Type | Hand |
| Burr | 48 mm conical, titanium-coated steel |
| Adjustment | stepped |
| Quiet | yes |
Sources
This review draws on these sources.
- Kingrinder K4 Review (2026), RoastAroma (owners)
- KINGrinder K4 & K6, the Kings of Value for Money, CoffeeGeek, 2023-11-17 (expert)
- Kingrinder K6 Review (with K4 comparison), Bean Ground, 2024-10-29 (expert)
- Kingrinder K4 Review, Grinder Reviews, 2026-06-19 (expert)