Wirsh Geimori T38 Plus Review: Compact Grinder Tested at Home

Most compact coffee grinders sound good on paper until you actually use them at home. Then the little annoyances show up. Grounds cling to everything, the cup tastes a little uneven, the motor screams across the kitchen, or the whole grinder feels like one bad morning away from cracking apart.

That’s why I wanted this Geimori T38 Plus review to be practical, not just a list of specs. Wirsh sent me the grinder for testing, but they did not tell me what to say. This review is based on my honest experience using it at home.

I tested it with my Moka pot and French press, two brewers that many people already have in the kitchen. I also tried different grind settings, from a very fine grind that looks suitable for espresso-style brewing to a coarser grind for French press and cold brew.

Mostly, I wanted to see one thing: does this small grinder actually make daily coffee easier, cleaner, and better? So let’s find out.

First Impressions and How I Tested It

Wirsh sent me the Geimori T38 Plus around a month ago, and my first impression was good. As soon as I opened the box, the design stood out. It’s compact compared to many countertop grinders, but it still has that solid and serious feel.

The full metal body helps. It feels sturdy, like it could take a few knocks without breaking apart, though I wouldn’t suggest testing that. I also liked the wood hopper lid and the magnetic dosing cup. Small details, but they make the grinder feel nicer to use.

It also comes with a small 5 ml spray bottle for RDT, so you can lightly spray the beans before grinding. That helps reduce static and keeps the grounds from making as much mess.

There’s also a small brush included, which is useful for cleaning leftover grounds around the dosing cup, chute, or burr area after use.

The grinder is about 22 cm tall (roughly 8.7 inches) and weighs about 1.60 kg (about 3.5 pounds).

For this review, I tested it at home with a moka pot and French press. Those are brewers that many people already have. I also focused on the things that matter in daily use: workflow, grind quality, mess, retention, and how the coffee tasted in the cup.

What Is the Wirsh Geimori T38 Plus?

The Wirsh Geimori T38 Plus is a compact electric burr grinder built for people who want something smaller than a full countertop grinder. But still more serious than a basic travel grinder or a cheap blade grinder.

It sits in a slightly odd place. It looks portable, and size-wise it is, but it is not fully cordless. The T38 Plus uses an AC power adapter, so you still need a plug nearby.

That makes it better suited for home kitchens, office coffee setups, RVs, hotel rooms, or travel where you know you’ll have power.

For camping without an outlet, the regular Geimori T38 makes more sense because it’s battery-powered. Here’s the quick breakdown:

The 38mm conical burrs are the main thing that makes this more interesting than a basic compact grinder. Burr grinders give you more control over particle size, which becomes useful when you’re switching between brew methods.

For moka pot, I usually want something on the finer side. For French press, I’m looking for a coarser grind that doesn’t leave the cup overly muddy.

The stepless adjustment also gives you more control, though it does mean you need to pay attention. There isn’t a simple “French press,” “moka pot,” or “espresso” button.

The manual does give suggested grind ranges for each brewing method, which helps. But you still have to make small adjustments based on your beans and taste. That part is normal with grinders, but it’s worth knowing before you expect perfect coffee on the first try.

So I’d describe the T38 Plus as a compact, home-friendly grinder with some travel potential, not a true off-grid travel grinder. It has the size for travel. It just needs electricity.

Get 15% Off with Code COFFEEVOILA

Wirsh Geimori T38 Plus: Grind Adjustment and Grind Range

The Geimori T38 Plus has a stepless adjustment dial that runs from 0 to 65. You change the grind size by rotating the top adjustment collar of the grinder. It’s easy enough to turn, although I did catch myself checking the number more than once, especially after moving the grinder around.

The manual gives suggested starting points for different brew methods:

I’d treat the manual’s numbers as a starting point (not a rule). The brew method gives you the general range, but the beans still decide the final adjustment.

A lighter roast may need a slightly finer setting, while a darker roast may taste better with a coarser setting if bitterness starts creeping in.

That’s where the stepless adjustment helps. You can make small changes instead of jumping from one fixed click to another. It gives you more control, but it also means you’ll probably want to save your favorite settings somewhere.

I’d keep a small note on your phone, especially because it’s easy to lose your number after cleaning the grinder or accidentally rotating the collar.

French Press Test

For the French press test, I used 17g of whole beans to 250ml of water, close to a 1:15 ratio. The beans were 100% Arabica. The bag doesn’t clearly state the roast, but the intensity is on the stronger side. So I treated it like a medium-dark coffee.

I measured the beans into the magnetic dosing cup, gave them a light spray with the RDT bottle, and started with the dial at 60, which sits in the French press/cold brew range from the manual.

The grind looked fairly even and coarse, close to coarse sea salt. I added the grounds to the French press, poured in a little hot water first to bloom the coffee and let some of the gas escape.

Some people say blooming isn’t really needed with French press. Maybe they’re right. I still do it anyway, partly out of habit. Then I added the rest of the water, stirred gently with a spoon, and let it steep for about 4 minutes.

The coffee smelled great, but the cup felt a bit thin. It was clean and had almost no sediment, but it lacked some color and flavor. My guess is that the grind was too coarse for these beans.

#2 French Press Test

On the second try, I moved the dial down to 50 and kept everything else the same. This cup was noticeably better: darker color, stronger aroma, more flavor, and still barely any bitterness.