Overview
The Knock Aergrind is a compact British hand grinder designed to pair with the AeroPress. The slim body fits inside the AeroPress plunger, creating an ultra-compact travel brewing kit. The 38mm Italmill steel burrs deliver excellent grind quality for its size, and the stepless adjustment provides precise control. The Knock brand has a devoted following for their distinctive design and quality burrs, and the Aergrind is their most travel-friendly offering. Build quality is excellent for the price, and grind quality rivals more expensive competitors.
The Knock Aergrind 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 $115, the Knock Aergrind is aimed at home baristas seeking a solid grinder without a premium price tag. Key workflow features include single-dose design (no hopper needed) and stepless grind adjustment for infinite precision. As a hand grinder, it's completely silent, portable, and gives you a meditative morning ritual.
The Knock Aergrind is weighing 0.4 kg, manufactured in United Kingdom. Its footprint measures 47 x 47 x 155 mm (W×D×H).
Full Specifications
| Brand | Knock |
|---|---|
| Model | Knock Aergrind |
| Category | Hand Grinder |
| Country of Origin | United Kingdom |
| Year Introduced | 2017 |
| Burr Size | 38 mm |
| Burr Material | Steel |
| Burr Type | 38mm conical |
| Retention | 0.1 g |
| Single Dose | Yes |
| Stepless Adjustment | Yes |
| Hopper Capacity | 25 g |
| Dimensions (W x D x H) | 47 x 47 x 155 mm |
| Weight | 0.4 kg (0.9 lbs) |
| MSRP | $115 |