Specs
| Burrs | P0: stainless pentagonal 2:02. P1: stainless hexagonal with aggressive cuts 6:09. P2: stainless heptagonal, almost the same geometry as the Comandante and Lume Mini 7:09 11:13. |
| Adjustment | Internal clicks you count by feel. On the P2 the dial plate is only 2 mm thick, so it dents and can skip clicks 7:09 |
| Microns per step | Possibly about 33 µm per click, but the figure isn't clear, so it isn't used here 7:09 |
Starting settings
These are the settings each creator gave, measured from their own grinder's zero. Use them as a starting point.
| Method | Setting | Context | Confidence | By | Source |
|---|---|---|---|---|---|
| Pour-over | 40 to 60 clicks (P1, manufacturer guide) | Kingrinder's suggested range for the P1. James Hoffmann dialled in by taste instead of counting | stated | Hoffmann | 12:15 |
| Espresso | about 30 clicks from zero (P1, manufacturer guide) | Kingrinder's suggestion. His first P1 shot choked, four clicks coarser ran 22 s, and then he went one click finer | stated | Hoffmann | 12:15 |
| Espresso | four clicks coarser after choking, then one click finer | The first attempt choked and four clicks coarser ran 22 s. One click finer aimed for 28 to 30 s with an 18 g dose | approx | Hoffmann | 14:19 |
Cup profile
Strengths
- The P2's cup rivals more expensive heptagonal grinders. It's light, with a large burr and 22 to 25 g capacity 7:09.
- The P0 feeds fast and is easy to turn with dark roasts 2:02.
Weaknesses
- Thin dial plate on the P2 7:09.
- Hard work with ultra-light roasts, and not for light-roast espresso 7:09.
- Static 7:09.
Verdict
2025: the P2 is the one to get for travel or occasional use. The P1 isn't worth buying and the P0 is only for dark roasts. For a daily grinder Lance Hedrick points to the K2 or K6 7:09 6:09 2:02 19:54.
James Hoffmann's take
- He reviewed the P1 (about £33) in 2024. It made the most fines of the three grinders he measured, yet in a blind V60 it tasted far closer to a Comandante than a Hario Slim, which he put down to it making almost no boulders. It's an easy recommendation for filter as a first grinder. Espresso was possible but mediocre 15:56 11:45.
- Kingrinder quotes 30 clicks per rotation for the P1 12:15.
Sources
- James Hoffmann: The KinGrinder P1: Why A Cheap Hand Grinder Has Me A Little Excited (2024-05-13)
- Lance Hedrick: This Budget Grinder Changes the Game (Kingrinder P Series Review) (2025-09-09)
Summarised in our own words from the creators' videos, with every point linked to the moment it comes from. Notchbook isn't affiliated with or endorsed by any of these creators, so please watch the originals for full context. Sources
Dialling in from here
- Sour, thin or fast? Grind finer. Why coffee tastes sour
- Bitter, dry or slow? Grind coarser. Why coffee tastes bitter
- Espresso: how to dial in. Filter: pour-over grind size.
Compare with other grinders in the grind size chart, or see every grinder.
Notchbook is a free app that remembers the setting that worked on your Kingrinder P0 / P1 / P2 for each coffee and brew method, and keeps a journal of every brew. Get it free on Google Play. The iPhone app is coming soon. More about Notchbook.