Porlex Mini II Coffee Grinder: The Travel Grinder That Actually Works

The Porlex Mini II is a compact, stainless steel hand grinder designed for travel and single-cup brewing. It holds about 20 grams of beans, fits inside an AeroPress, and uses ceramic conical burrs that produce a surprisingly consistent grind for its size. If you travel frequently and refuse to drink hotel lobby coffee, the Porlex Mini II is one of the best portable grinding solutions available.

I've carried this grinder across multiple trips and used it daily at home as a backup to my electric grinder. Here's my detailed take on what works, what doesn't, and who should consider buying one.

Size, Weight, and Portability

The Porlex Mini II is small. At about 5 inches tall and 1.8 inches in diameter, it's roughly the size of a thick marker. It weighs just under 8 ounces empty. The entire body is stainless steel, so it won't crack or shatter in your luggage like a plastic grinder might.

The big selling point for travelers: the Porlex Mini II fits inside the plunger tube of an AeroPress. This means your grinder and brewer nest together into one compact package. Add a small bag of beans and a collapsible kettle, and you have a complete coffee setup that fits in a shoe.

I've packed the Porlex in carry-on luggage, checked bags, and backpacks without any issues. The slim cylindrical shape slides into side pockets and doesn't take up much room. The stainless steel body has survived being tossed around in my bag without any dents or functional damage.

Build Quality

The Mini II feels solid in hand. The body is a single piece of brushed stainless steel with a matte finish. The silicone grip band around the middle prevents the grinder from spinning in your hand while you crank. This grip was added in the Gen II version and is a major improvement over the original, which had a smooth body that got slippery with sweaty or wet hands.

The handle folds down for storage and clicks into place magnetically. It's a simple mechanism that works reliably. The handle itself is stainless steel with a comfortable knob at the end.

Grind Quality and Adjustment

The Porlex Mini II uses ceramic conical burrs with a click-based adjustment system. You remove the bottom catch container and adjustment nut, then rotate the inner burr shaft to change settings. Each click moves the burr incrementally, giving you about 15-18 distinct settings from fine to coarse.

How the Grind Performs

For a hand grinder at this price (around $60-$70), the Porlex delivers respectable results:

  • AeroPress (medium-fine): This is the Porlex's sweet spot. The grind consistency at medium-fine settings produces clean, balanced AeroPress cups. About 80-85% of particles fall within the target range, with moderate fines.
  • Pour-over: Acceptable but not exceptional. The particle distribution is wider than what you'd get from an electric flat burr grinder, leading to some muddiness in the cup. Still far better than pre-ground.
  • French press (coarse): The coarse settings produce more inconsistency. Larger particles mixed with fines means some over-extraction. Drinkable, but not ideal.
  • Espresso (fine): The Porlex can grind fine enough for a pressurized portafilter basket, but not fine enough for a proper unpressurized basket. Don't buy this as your espresso grinder.

The ceramic burrs are harder than steel and resist wear well, but they're also more brittle. A small stone or foreign object in your beans can chip a ceramic burr. I always check my beans visually before loading the Porlex, especially with less carefully sorted single-origin lots.

The Grinding Experience

Let's talk about the actual process of hand grinding with the Porlex Mini II. It's physical work. Grinding 20 grams of medium-roasted beans at a medium-fine setting takes about 1.5 to 2 minutes of continuous cranking. Light roasts take longer because the beans are denser and harder.

The silicone grip band helps, but your hand will still get tired during a full dose. The handle is about 4 inches long, which provides decent leverage. Some competing grinders (like the Comandante or 1Zpresso) have longer handles that reduce effort, but they also cost two to three times as much.

Noise

Hand grinders are quiet compared to electric grinders, and the Porlex is no exception. The loudest sound is the crunch of beans being crushed, which tops out at maybe 50 decibels. You can grind in a hotel room at 5 AM without disturbing anyone. This is one of the genuine advantages of hand grinding while traveling.

Porlex Mini II vs. The Competition

The portable hand grinder market has expanded significantly, and the Porlex faces serious competition. Here's how it stacks up:

  • 1Zpresso Q2 S: Similar price, aluminum body, better grind consistency, faster grinding. The Q2 S has become the value king in this category. If grind quality per dollar is your priority, the 1Zpresso wins.
  • Comandante C40: Much more expensive ($250+), but the grind quality is in a different league entirely. Designed for serious coffee enthusiasts who want hand grinder performance rivaling electric burr grinders.
  • Hario Skerton Plus: Cheaper ($40-$50), but the grind consistency is noticeably worse, especially at coarser settings. The ceramic burrs wobble more than the Porlex's.
  • JavaPresse Manual Grinder: Budget option ($25-$30). Acceptable for casual use but poor consistency. The Porlex is worth the upgrade.

The Porlex's main advantages over competitors are its slim profile (fits in an AeroPress), the stainless steel durability, and the ceramic burrs that never need seasoning. Its main disadvantage is that grinders like the 1Zpresso Q2 S now offer better performance at a similar price point.

For a full comparison of grinder options across all price ranges, our Best Coffee Grinder guide covers both hand and electric models.

Maintenance and Care

Ceramic burrs require minimal maintenance compared to steel. They don't rust, they don't need oiling, and they retain their sharpness for a very long time. Porlex estimates the burrs last for thousands of doses before needing replacement.

My cleaning routine:

  • After each use: Tap the grinder gently to release loose grounds. A quick blow into the burr chamber removes most residue.
  • Weekly: Disassemble the grinder (takes about 30 seconds) and brush out the burr chamber with a small dry brush. An old toothbrush works perfectly.
  • Monthly: Wash the stainless steel body and catch container with warm soapy water. Dry thoroughly before reassembling. Keep the burrs dry.

The adjustment mechanism can develop a slight wobble over time if the spring washer loses tension. Porlex sells replacement parts, and the adjustment assembly is user-serviceable. I haven't needed to replace anything after a year of regular use.

Also check our Top Coffee Grinder guide if you're comparing the Porlex against other popular picks.

Who Should Buy the Porlex Mini II

This grinder makes sense for:

  • Travelers who want fresh coffee on the road without carrying bulky equipment
  • AeroPress users who want a grinder that literally fits inside their brewer
  • Campers, hikers, and backpackers who need a durable, compact grinder
  • People who want a backup hand grinder for power outages or mornings when you don't want to run a noisy electric grinder
  • Budget-conscious buyers who want a meaningful upgrade from pre-ground coffee

This grinder is NOT for:

  • Daily home use as your primary grinder (an electric burr grinder is more practical)
  • Espresso (too coarse at the finest setting for unpressurized baskets)
  • Anyone who dislikes manual grinding (2 minutes of cranking every morning gets old)

Frequently Asked Questions

How many cups can you grind with the Porlex Mini II at once?

One. The capacity is about 20 grams, which is enough for a single AeroPress or a small pour-over. If you want to grind for two cups, you'll need to do two separate grinding sessions. The standard-size Porlex Tall holds about 30 grams for slightly larger doses.

Do the ceramic burrs chip easily?

They can chip if you grind a stone or a very hard foreign object. This happens rarely with quality coffee beans but is a known risk with ceramic burrs. Always visually inspect your beans before loading. If a burr does chip, Porlex sells replacements for about $15-$20.

Is the Porlex Mini II worth it over a $20 hand grinder?

Yes, without question. Budget hand grinders ($15-$25) use inferior burrs with significant wobble, producing wildly inconsistent grounds. The Porlex costs more but delivers meaningfully better coffee. The stainless steel construction also lasts much longer than the plastic bodies on cheap grinders.

Can I use the Porlex Mini II for cold brew?

Yes. Grind at the coarsest setting and expect a slightly less consistent coarse grind than an electric burr grinder would produce. For cold brew, where grounds steep for 12-24 hours, this inconsistency matters less than it does for pour-over or espresso.

The Bottom Line

The Porlex Mini II is a reliable, well-built travel grinder that has earned its reputation over the years. It's not the best hand grinder you can buy anymore (the 1Zpresso Q2 S has taken that crown in this price range), but it remains one of the most portable and durable options. If the AeroPress nesting feature matters to you, or you value stainless steel construction over aluminum, the Porlex Mini II still makes a strong case for your travel kit.