Wacaco Grinder: A Portable Coffee Grinder Built for Travel
Wacaco is best known for the Nanopresso and Picopresso, their portable espresso makers that let you pull surprisingly decent shots anywhere. Their Exagrind hand grinder was designed as the companion piece, a compact manual grinder small enough to fit in a jacket pocket and capable of grinding fine enough for espresso. If you're a traveling coffee enthusiast who already uses a Wacaco brewer, the Exagrind is the grinder they built specifically for that workflow.
I've taken the Exagrind on several trips and used it alongside both the Nanopresso and a standard pour over dripper. Below, I'll break down the build quality, grind performance, portability, and where this grinder fits in the broader market.
Build Quality and Design
The Wacaco Exagrind is impressively compact. At about 5 inches tall and 2 inches in diameter, it's one of the smallest hand grinders available. It weighs around 300 grams (just under 11 ounces), making it lighter than most smartphones with a case.
The body is machined aluminum with an anodized finish available in black or silver. It feels solid despite its small size, with no rattles or loose parts. The handle folds flat against the body for storage, which is a clever design touch that prevents it from snagging on bag contents.
The burr set uses stainless steel conical burrs that measure about 35mm. That's smaller than most full-size hand grinders (which typically have 38mm to 48mm burrs), but larger than the tiny ceramic burrs found in ultra-cheap travel grinders.
What's in the Box
Wacaco includes the grinder, a carrying case, a cleaning brush, and an adjustment tool. The carrying case is a semi-rigid pouch that provides decent protection. It's a step up from the thin fabric pouches most hand grinders ship with.
Grind Settings and Adjustment
The Exagrind uses a stepless adjustment system. You twist the adjustment ring at the base of the inner burr shaft to change the grind size. Since it's stepless (no clicks), you can dial in any grind size within the range. This is great for espresso precision but means you need to memorize positions or use reference marks.
I found the useful range to be:
- Fine (espresso): About 1 to 2 full turns from fully closed
- Medium (pour over): About 3 to 4 turns from fully closed
- Coarse (French press): About 5 to 6 turns from fully closed
One annoyance: the adjustment ring can drift during grinding if you grip the body in the wrong spot. After the first few uses, I learned to hold the grinder by the section above the adjustment ring, which keeps the setting stable. It's a minor learning curve, but worth mentioning.
Espresso Grind Capability
The Exagrind can actually produce a grind fine enough for the Picopresso, which is saying something. The Picopresso requires a fairly fine, consistent grind to build proper pressure. I dialed in about 1.5 turns from closed and got adequate results. It's not as consistent as a dedicated espresso hand grinder like the 1Zpresso JX-Pro, but for a travel-first grinder of this size, the espresso performance is respectable.
Grind Consistency and Speed
Let's set realistic expectations. The Exagrind's 35mm burrs produce decent consistency at medium settings (pour over and drip), and acceptable consistency at finer settings (espresso). The particle distribution is tighter than budget ceramic hand grinders but looser than premium options with larger burrs.
For 15 grams of medium-roast beans at a pour over setting, expect about 60 to 70 seconds of cranking. The small burrs and short handle mean you need more rotations to process the same amount of coffee compared to a larger grinder. For espresso-fine grinding (18 grams), it takes closer to 90 seconds.
The cranking effort is moderate. The short handle provides less leverage than a full-size hand grinder, so your hand fatigues faster. For a single dose, it's fine. For back-to-back doses (grinding for two people), you'll feel it.
Cup Quality
I brewed side-by-side cups comparing the Exagrind output to my Timemore C2 Max, both at pour over settings. The Timemore produced a slightly cleaner cup with more clarity in the flavor notes. The Exagrind cup was good but had a touch more muddiness, likely from the wider particle distribution. Honestly, for travel coffee, the difference is small enough that I wouldn't notice it in a hotel room or campsite setting.
Portability and Travel Use
This is where the Exagrind earns its keep. The entire setup, including the carrying case, fits in the palm of my hand. It takes up less space than a pair of sunglasses in my bag. Combined with a Nanopresso and a small bag of beans, you have a complete portable coffee kit that weighs under a pound total.
I've used it in hotel rooms, at airports (pre-security, grinding isn't exactly a quiet activity near the gate), and on camping trips. The folding handle means it packs flat, and the aluminum body can handle being tossed in a bag with other gear without denting.
The capacity is about 20 grams of beans, which is enough for a single espresso dose or a small pour over. If you need more than 20 grams, you'll need to grind in two batches.
Comparison to Other Travel Grinders
The Exagrind competes with grinders like the 1Zpresso Q2, Porlex Mini, and Hario Mini Mill. Compared to the 1Zpresso Q2, the Exagrind is slightly smaller and lighter but produces less consistent grinds. Compared to the Porlex Mini, the Exagrind has better build quality and finer adjustment capability. Against the Hario Mini Mill, the Exagrind wins in every category except price.
For a full comparison of grinders across all categories, including portable options, check out our best coffee grinder guide. The top coffee grinder roundup also includes travel-friendly picks.
Who Should Buy the Wacaco Exagrind
The Exagrind makes the most sense for:
- Wacaco brewer owners. If you already use a Nanopresso or Picopresso, the Exagrind is the natural companion. It's designed to work with those brewers, and the combined kit is remarkably compact.
- Ultra-light travelers. If every ounce in your bag matters and you refuse to drink bad hotel coffee, this is one of the most portable real burr grinders you can buy.
- Backup grinder users. Having a tiny hand grinder tucked in a drawer as a backup to your electric grinder means you're never stuck grinding with a blade grinder when the power goes out or your main grinder breaks.
It's less ideal as your only grinder at home. The small capacity, slow grinding speed, and moderate consistency mean it works best as a travel tool, not a daily driver.
Frequently Asked Questions
Can the Wacaco Exagrind handle dark roast beans?
Yes, dark roasts actually grind easier because the beans are more brittle. You'll get through a dose faster with dark roasts compared to light or medium roasts. The oiliness of dark roasts can cause more buildup on the burrs, so clean them more frequently if you primarily use dark roasts.
How do I clean the Exagrind?
Disassemble by removing the handle and unscrewing the top cap. Pull out the inner burr assembly and brush all surfaces with the included brush. Avoid water on the burrs. A quick brush after every few uses and a more thorough cleaning weekly keeps it performing well.
Does the Exagrind fit inside the Nanopresso carrying case?
Not inside the Nanopresso itself, but Wacaco sells a combined carrying case that fits both the Nanopresso and Exagrind together. You can also find third-party cases that hold both. Separately, the Exagrind in its own case adds very little bulk to your travel kit.
How long do the burrs last?
Stainless steel burrs on a hand grinder used for travel (a few times per week) should last years without noticeable degradation. Even with daily use, expect three to five years before the burrs need attention. Wacaco sells replacement burrs, though availability varies by region.
The Bottom Line
The Wacaco Exagrind is a purpose-built travel grinder that prioritizes portability above all else. It grinds well enough for good coffee on the road, pairs perfectly with Wacaco's portable brewers, and takes up almost no space in your bag. It's not trying to compete with larger hand grinders on grind quality, and that's fine. If you travel regularly and want fresh-ground coffee everywhere you go, the Exagrind delivers on that specific promise.