A hand grinder uses manual cranking to grind beans, giving you full control over grind speed and consistency. They're quieter, more portable, and often produce less heat — which preserves coffee flavour. Electric grinders are faster and more convenient for daily use, but a good hand grinder often outperforms electric grinders at 2–3× the price.

Espresso needs a fine grind, pour-over and drip need medium, French press needs coarse. Most hand grinders come with a reference guide, and you can fine-tune from there by taste. The K7's 100-gear adjustment makes dialling in easy — small turns, big difference.

Disassemble the burr chamber, brush out retained grounds with the included brush, and wipe the body. Deep clean monthly with a dry brush. Never use water on the burrs — it causes rust and damages the coating.

For a typical 15–18g espresso dose, expect 30–60 seconds depending on grind size and burr quality. Pour-over grinds faster (coarser setting) — usually under 30 seconds. The K7's large 53mm burr grinds noticeably faster than smaller-burr grinders.

The K7 can technically grind fine enough for espresso, but its strength is pour-over and filter brewing — that's where the 53mm burr really shines. If espresso is your primary brew method, the KINGrinder K6 with its titanium-coated burrs and 16-micron adjustment steps is the better choice.

External adjustment means you turn a dial on the outside of the grinder to change grind size — no disassembly needed. Internal adjustment (like on the KINGrinder P2) requires removing parts to access the adjustment ring. External is faster, more convenient, and lets you switch between brew methods without hassle.