Outin Nano Portable Electric Espresso Machine Review

Let’s see how the Outin Nano stacks up against other popular portable coffee makers:

Recommended Accessories:

• Outin Nano Waterproof Carrying Bag
• Manual coffee grinder (I recommend the Timemore C2)
• Digital scale for precise measurements
• Reusable capsules if you prefer ground coffee

The Outin Nano is quite the engineering feat. Having used it for several months now, I’m still impressed by how they’ve packed so much capability into such a compact device.

Key Features:

• Size & Weight: About the size of a water bottle at 23 cm x 7 cm, weighing 670g
• Pressure System: 20-bar pump for proper espresso extraction
• Heating: Built-in system reaches optimal brewing temperature (92°C/198°F) in around 3.5 minutes
• Battery: 7500 mAh capacity, good for 5 cold-water shots or 100+ hot-water shots
• Brewing Options: Works with ground coffee or Nespresso-style capsules
• Water Tank: 80ml capacity (recommended 50ml per shot)
• Construction: Recycled thermoplastic body, stainless steel water tank
• Power: USB-C charging (10W+), car charger compatible
• Colors: Forest Green or Pearl White

What’s particularly clever is the heat management system. I’ve found it maintains temperature remarkably well between shots - something that’s usually tricky with portable machines.

The build quality feels solid too. After accidentally dropping it once (oops), it kept working perfectly, which speaks volumes about its durability.

Let me walk you through brewing with the Outin Nano - it’s actually pretty straightforward once you get the hang of it.

Basic Operation:

1. Fill the tank with water (cold or room temp works fine)
2. Add your coffee (ground or capsule)
3. Press the button and wait about 3.5 minutes for heating
4. The machine automatically starts extraction
5. Enjoy your espresso!

Here’s what’s happening behind the scenes: The heating element brings water to the ideal 92°C (198°F), then the 20-bar pump kicks in. I’ve noticed this two-stage process helps prevent those bitter, over-extracted shots you sometimes get with other portable machines.

The real genius is in the simplicity - one button does everything. No fiddling with temperatures or pressure settings. Though if you’re like me and enjoy experimenting, try playing with grind size and coffee amount to dial in your perfect shot.

Quick tip: When using ground coffee, a medium-fine espresso grind usually works best. Too fine, and you’ll get channeling; too coarse, and the shot runs too fast.

After extensive testing (and countless espressos), here’s my honest take on what works and what could be better:

The Good Stuff:

• Genuine Espresso Quality: The 20-bar pressure isn’t just marketing - you get proper crema and full-bodied shots
• Smart Design: One-button operation means less fumbling around while half-awake
• Versatility: Switching between ground coffee and capsules is actually useful, not just a gimmick
• Battery Life: Even with the heating system, it lasts longer than expected
• Build Quality: Feels solid and well-engineered, not plasticky

Room for Improvement:

• Water Capacity: The 80ml tank means frequent refills for multiple drinks
• Heat-Up Time: 3.5 minutes isn’t terrible, but it can feel long when you’re craving coffee
• Learning Curve: Finding the right grind size takes some trial and error
• Investment: It’s not cheap, though quality rarely is
• Size: While portable, it’s bulkier than manual alternatives

A coffee roaster friend tried it and made an interesting observation: the pressure consistency is remarkably stable for a portable unit. This explains why the shots are so reliably good once you dial in your recipe.

Having taken the Outin Nano on several trips, I can speak to its travel-worthiness. At 670g, it’s like carrying a small water bottle - noticeable but not burdensome. The cylindrical shape (23 cm x 7 cm) fits nicely in backpack water bottle pockets or laptop bag side compartments.

The USB-C charging is a game-changer. On a recent camping trip, I kept it topped up with the same power bank I use for my phone. One unexpected bonus: the stainless steel construction proved remarkably resistant to the inevitable knocks and bumps of travel.

That said, you’ll want the carrying case. The machine is sturdy, but the finish can scratch if it’s bouncing around with your keys. The case also provides handy storage for accessories.

Just remember - while it’s travel-friendly, it’s not exactly ultralight. Manual options like the AeroPress Go are lighter if weight is your primary concern.

The Outin Nano really shines for certain coffee lovers. You’ll appreciate this machine if you:

• Travel frequently but refuse to compromise on coffee quality
• Work remotely and want proper espresso in your hotel room or Airbnb
• Enjoy outdoor activities but need your espresso fix
• Value convenience but won’t settle for instant coffee
• Like entertaining and want to surprise guests with proper espresso anywhere

I’ve found it especially useful for business trips where good coffee can be hard to find or expensive. It’s also perfect for those who work in offices without decent coffee options - just add hot water from the break room kettle, and you’re set.

The versatility of using both ground coffee and capsules means you can adapt to different situations. When I’m rushed, I’ll use a capsule, but for leisurely weekend camping, I enjoy the ritual of grinding fresh beans.

Let’s be real - the Outin Nano isn’t for everyone. Skip this if you:

• Primarily drink drip coffee or prefer other brewing methods
• Need to make multiple drinks quickly (the small water tank becomes limiting)
• Are an ultralight traveler counting every gram
• Prefer simple, non-electronic coffee solutions
• Don’t drink espresso regularly enough to justify the investment

Better alternatives might include:

• AeroPress Go for versatile brewing and lighter weight
• Clever Chef French Press for larger batches
• Pour-over setups for those who prefer drip coffee
• Wacaco Minipresso GR for a more budget-friendly manual option

Remember, the best coffee maker is the one that fits your specific needs and habits.

After six months of regular use, here’s how the Outin Nano holds up:

The build quality proves its worth over time - no loose parts or degrading performance. The battery still holds its charge well, though I’ve noticed slightly shorter run times in cold weather. The stainless steel water tank shows no signs of scale buildup, likely due to the heating system’s efficient design.

One pleasant surprise: the portafilter seal remains tight, unlike some other portable machines that start to leak after frequent use. The USB-C port stays clean and secure - a common failure point in other electronic devices I’ve used while traveling.

A minor note: the matte finish can show wear if you’re not using a case, but it’s purely cosmetic. The internal components maintain their performance admirably, even with daily use.

Keeping the Outin Nano running smoothly isn’t complicated, but it does require attention to detail. Here’s what works for me:

Daily Care:

• Quick rinse after each use (run a water-only cycle)
• Wipe down the exterior and portafilter
• Empty and dry the water tank if not using for a while

Weekly Tasks:

• Deep clean the portafilter and basket
• Wash the water tank with mild soap
• Check and clean the seals

Monthly Maintenance:

• Run a descaling cycle (especially important in hard water areas)
• Clean the capsule puncture mechanism if you use pods
• Check the USB port for debris

Troubleshooting Common Issues:

• Weak espresso? Check your grind size or clean the filter
• Not heating? Ensure full battery charge and clean power port
• Leaking? Verify all seals are properly seated

A coffee machine repair friend taught me a great tip: run a blank shot with just hot water before your first coffee of the day. It preheats everything and helps maintain the seals.

The Outin Nano makes some solid efforts toward sustainability. The body uses recycled thermoplastic, and the stainless steel components are recyclable. USB-C charging means no proprietary power bricks to eventually discard.

Using ground coffee produces minimal waste, especially with a reusable filter. Even with capsules, it’s still better than daily disposable cups from cafes. The efficient heating system minimizes energy use - it only heats the water you need.

One drawback: like most electronic devices, repairs require specific parts. However, the modular design suggests Outin considered repairability in their engineering. They also offer replacement parts rather than pushing for whole unit replacement.

The carrying case helps extend the product’s life by protecting it from damage - another indirect environmental benefit.

Let’s talk value. The Outin Nano sits in the premium segment of portable coffee makers, and here’s what you get for your money:

The 20-bar pressure system delivers consistent cafe-quality shots - something cheaper machines often promise but rarely achieve. The build quality suggests longevity, while features like self-heating and dual compatibility add genuine utility, not just marketing fluff.

Compared to manual devices, you’re paying for convenience and consistency. The automatic operation removes variables that can make manual brewing frustrating, especially when traveling. Plus, the versatility of using both ground coffee and capsules adds practical value.

Consider this: if you’re spending $4-5 daily on cafe espresso, the Outin Nano pays for itself surprisingly quickly. Factor in the quality of drinks it produces and its durability, and the value proposition becomes clearer.

Think of it like investing in good running shoes - yes, cheaper options exist, but the right tool for daily use often justifies the investment.

Some handy tips I’ve discovered through trial and error:

1. Perfect Preheat: Run a blank shot with hot water first thing - it primes the system and gives you hotter espresso

2. Battery Life Hack: For longer trips, use hot water from a kettle or hot water tap - this dramatically extends battery life

3. Grind Adjustment: Start slightly coarser than typical espresso grind and adjust finer until you hit the sweet spot

4. Travel Pack: Keep a small kit with a USB-C cable, cleaning brush, and spare capsules in the carrying case

5. Quick Clean: Between shots, a quick wipe of the portafilter with a paper towel prevents flavor carryover

6. Temperature Boost: Wrap the device in a small towel while heating in cold conditions - it helps maintain optimal temperature

7. Storage Smart: Keep the tank empty and components dry when storing for more than a day

Q: How long does a full battery charge last? A: With cold water, expect about 5 shots. Using preheated water extends this to 100+ shots. Charging takes roughly 2-3 hours.

Q: Can I use it on airplanes? A: Yes, the battery capacity complies with airline regulations. Just empty the water tank before flying.

Q: What’s the grind size for best results? A: Start with a medium-fine espresso grind - slightly coarser than for a standard espresso machine. Adjust based on your results.

Q: Does it work well with dark roasts? A: Yes, but you might want to use slightly lower water temperature. Let the machine cool for a minute after heating before brewing.

Q: How loud is it during operation? A: Quieter than a standard espresso machine but louder than manual devices. The pump makes a moderate whirring sound.

Q: Can I use third-party capsules? A: Yes, it works with Nespresso-compatible capsules, though original or high-quality third-party ones tend to work best.

Q: What maintenance is essential? A: Regular rinsing after each use, weekly cleaning of removable parts, and monthly descaling are key.