Comandante and Timemore show up side by side as soon as you start reading about hand grinders. The Timemore in this comparison is the Chestnut S5 Pro, the grinder this site keeps as the one for home. The Comandante is the C40 MK4 with the Nitro Blade.
We have not used a C40. What follows is the product page, FAQ, and manual we opened on October 31, 2026, plus the S5 Pro specs this site already copied from Timemore's own pages. There is no verdict on which one tastes better.
The short answer
- An external dial you can read, and the same pour-over every morning → Chestnut S5 Pro. That is the green one I use every day
- A German Nitro Blade, and a routine of counting clicks from zero → C40 MK4. We have no notes on how it feels in the hand
- The lightest possible turning, or a grinder you can take apart and carry → this is not a contest between these two. That role belongs to the EPEIOS Essence Go. The C40 product page we opened did not list a weight in grams, so this page does not compare them by weight
Where the specs differ
| Comandante C40 MK4 Nitro Blade | Timemore Chestnut S5 Pro | |
|---|---|---|
| Burr | Nitro Blade, a high-nitrogen steel. The maker says it resists wear and needs less care | 48mm. 420 stainless TriB-048-I |
| Adjustment | A three-legged dial on the bottom. Zero is where the burrs meet, and you count the clicks you open from there | External dial. 90 clicks per turn, 15 microns (0.015mm) per click |
| How you see the current setting | The official description does not include a numbered ring | You read the dial from the outside |
| Burrs at a fine setting | The FAQ says contact on the fine side can be expected (a floating cone) | Even at the zero setting the gap is about 0.075mm. Timemore says uneven force can cause a rubbing sound, and that the sound does not mean the grinder is broken |
| Capacity | One glass jar and one polymer jar are included. Each holds 40g | About 30g |
| Weight | The official product page opened on October 31, 2026 did not list grams. Some retailer listings disagreed with each other, so this article does not state a weight | About 910g |
| Fine-grind range | The manual describes a span from hand-brew coarse through extra-fine for espresso and cezve | The official starting ranges include espresso 0–2.0 and pour-over 5.0–8.0 |
| Where it is made | The product page says made in Germany | Timemore is a Chinese brand, in this site's brand note |
| Use on this site | Not used | I use the green one every day, mostly for pour-over |
The S5 Pro figures, with the date they were copied, are kept in the review. Microns per click for the C40 were not on the product page or the FAQ we opened. This page does not adopt micron numbers from review sites. It also does not check whether a separate part exists to make the clicks finer. For that, use Comandante's accessories page.
The adjustment is what you feel every morning
On the C40 you count clicks from the point where the burrs close. Clockwise is finer. Counterclockwise is coarser. There is no scale on the outside, so the setting is hard to repeat the next morning unless you write it down. That description is the manual's procedure. It is not a count we made ourselves.
The S5 Pro uses an external dial. Each click is 15 microns, and you can move the setting without opening the body. Leaving a pour-over number in place, and starting from that same place each morning, matches what the published spec actually does. My own note is about weight: at about 910g, kept at home for pour-over, the weight has not been a problem. I have not logged espresso shots on it. The official espresso range is a starting spec, recorded in the S5 Pro review.
The order of grind sizes itself is the coffee grind size guide. Copying a C40 click count onto the S5 Pro's "5.0" will not line up.
What is in the box, and what not to unscrew
The C40 MK4 product page says the box includes a brown glass jar and a clear polymer jar. Both hold about 40g, and the maker says both can be washed with boiling water. The included list also has the crank, a wrist band, and a felt mat. There is a note that wooden parts vary from one unit to the next.
The FAQ warns against removing the three screws that hold the bottom burr. Doing that can shift the calibration, and the maker says it can fall outside the warranty. Cleaning is described as a brush, and taking the grinder apart when you need to. This site has not tested whether the C40 or the S5 Pro can be washed with water.
Which one to buy
- A first grinder, pour-over at home, and a dial you can see from the outside → S5 Pro
- You are fine counting clicks, and you want the German Nitro Blade on the spec sheet → C40 MK4. Taste is unchecked
- Easy turning, or packing it into a case, comes first → Essence Go. Read Timemore S5 Pro vs EPEIOS Essence Go
- You want 1Zpresso models split into an espresso job and a drip job → the 1Zpresso hand grinder lineup
Burr size, weight, and where the grinder lives are covered in how to choose your first hand grinder. This site's first look is still the S5 Pro and the Essence Go. The C40 is not placed in that order.