
Zojirushi CD-NAC40BM Black
Score: 83/100
Fellow Stagg EKG Pro
Score: 84/100Rankings

The Fellow Stagg EKG Pro Studio Edition combines precise 40-100°C temperature control with premium glass-and-metal construction and smart features like Wi-Fi scheduling. Its weight, short cord, and premium cost may limit casual users. Perfect for serious pour-over enthusiasts seeking programmable performance.

The Zojirushi CD-NAC40BM is a 4-liter Micom water boiler offering precise temperature control and robust stainless-steel construction. Its large size and weight make it less portable and it lacks an LED indicator. Ideal for tea and coffee enthusiasts who value accuracy and capacity.
| Attribute | ![]() | ![]() |
|---|---|---|
4 Lbest | 0.9 L | |
800 W | 1,200 Wbest | |
| ↓ lower better | 3.3 kg | 1.4 kgbest |
120 Vbest | — | |
— | 762 mmbest | |
231 mmbest | 196 mm | |
231 mmbest | 172 mm | |
231 mm | 282 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Capacity & Performance(1) | ||
Capacity (L) | 4.0 L | 0.9 L |
Features & Safety(1) | ||
Certifications | cETLus | ETL, FCC, CSA, UL |
Design & Build(5) | ||
Body Material | stainless steel | 304 stainless steel |
Weight (kg) | 3.3 kg | 1.4 kg |
Height (mm) | 231 mm | 196 mm |
Width (mm) | 231 mm | 172 mm |
Depth (mm) | 231 mm | 282 mm |
Power & Electrical(2) | ||
Power (Wattage) (W) | 800 W | 1200 W |
Voltage (V) | 120 V | 110-120 V |

Products in the top-left offer the best value (high score, low price).

Editors and professional reviewers emphasize the Zojirushi CD-NAC40BM's precise temperature control, rapid heating, and Japanese build quality, positioning it as a premium choice for tea and coffee enthusiasts who value consistency and durability.
Everyday users who have reviewed the product highlight its fast heating, generous 135 oz capacity, and the convenience of on-demand hot water across a wide temperature range, describing the experience as a pleasure, while noting the unit's weight and size as potential drawbacks.

“Fast heating, 135 oz capacity, and on-demand hot water across 160-208°F settings-it's a pleasure.”



Professional reviewers and editors commend the Stagg EKG Pro Studio Edition for its precise pour-over performance, premium glass-and-metal construction, and the addition of pro-level programmability such as scheduling and Guide Mode, positioning it as a top choice for serious brewers seeking both functionality and aesthetic appeal.