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Nanopresso: What to Expect?

Since the introduction of our innovative Minipresso, back in 2014, we have never stopped looking forward and dreamed to reach higher perfection. But path to excellence is long and strewn with difficulties. It took us time, lot of research and many prototypes to achieve our goal. Thanks to your support, feedbacks, and comments, you have help us to push our limits and to keep us focus. Today we are proud to present what we consider to be our best handheld espresso machine, the Nanopresso.

Over the next few weeks we will disclose step by step in this blog post what to expect from our new little espresso machine. So stay tuned!

In our journey to create a better compact espresso machine, we did not aim at saving cents here and there if it had to impact the quality of the device. Instead we focused on designing a product we could all really be proud to own and use. Performance, robustness and aspect was at the top of the improvement list. Every little detail has received all the attention of our engineers and designers. So that 95% of the parts used in the manufacturing of the Nanopresso are new.

At first look, your attention will be caught by the dimension of the Nanopresso. The length has been reduced by 2 cm. It's definitely much shorter than the Minipresso. Surprisingly we have been able to increase the capacity of the water tank to 80 ml.

The Nanopresso is also a bit lighter compared to the Minipresso, less 26 grams. It seems not much, but considering that the whole structure has been reinforced, that we use stronger and heavier materials, and that the Nanopresso feels so solid, it's fantastic to know that the weight has decreased slightly.

Based on users feedback, it was essential that some improvements should be made regarding the cleaning process. The outlet head has been completely redesigned to be easily disassemble, so each part can be cleaned separately.

The main body inner surface, where is positioned the filter basket, has been simplified to avoid to have too many crannies in which coffee can easily accumulate.

18 BAR (261 PSI) PRESSURE - 四月 19
Our newly patented pumping system is now able to reach a maximum of 18 bar (261 PSI) pressure for an even better extraction. The parts and seals have been updated to hold and withstand that very high amount of pressure. The best is that you will need less force to reach that level. Nanopresso require 15% less power to push the pumping knob. For example with the Minipresso, at 16 bar pressure (232 PSI) you will need to press the knob with a force equal to 13.6 kg (30 lbs). But with the Nanopresso the force drops to 11.6 kg (25.60 lbs). 2kg (4.40 lbs) is a big difference and ladies will certainly appreciate this improvement.

Nanopresso comes with some new instructions. We recommend to add 8 gr of fine coffee grind into the filter basket and apply a hard tamp, really hard. Most of the pre-grinded coffee beans will work very well under those conditions, thanks to the 18 bar pressure (261 PSI).

If you want to get the best from the Nanopresso, you will have to fine tune the grinding. A good grinder will come in handy. As a very fine coffee grind will increase the inner pressure we have added a pressure release valve which will open at 18 bar (261 PSI). The grinding will be the key to come close to that pressure level without going over. Once you get it right, you will enjoy the most amazing espresso shot.

Here is the extraction result using hot water. Previously I have run one cycle to warm up the Nanopresso. The coffee grind is the same than for the cold brew test. I used 8 grams of fine coffee grind and applied a hard tamp.

The crema is much darker and dense. The espresso has a full body taste. It's just perfect. LOVE IT! I even can't reach this level of extraction with our benchmark countertop espresso machine.

By using a specific adapter ring and a larger filter basket (16 grams), accessories sold separately, Nanopresso can prepare double espresso. The coffee grind used in the test below is the same than previously. I have also applied a hard tamp.

The crema is slightly darker but most importantly the taste is unbelievable. For the double espresso addict, this is a game changer. In this configuration, the Nanopresso is still shorter than the Minipresso.

Let me share with you one of our early tests in which we used cold water coming directly from the water tap.

Even if the coffee in the test above is completely cold, the extraction is already excellent. The crema has a very nice color and the espresso taste surprisingly good. Cold brew will be great for the summer. Very excited about that!


尺寸 156x71x62 mm 6.14x2.8x2.44in
重量 336 g 0.74 lb
水仓容量 80 ml 2.70 US fl oz
粉杯容量 8 g 0.28 oz
最大压力 18 bar 261 psi

Note: Finals products appearance may slightly differ from the ones shown in above photos.

Please use the comment section below to share your impressions and don't hesitate to ask if you have any questions.

The pre-order campaign is now closed. From 七月 2017 Nanopresso will be available in our online store at the retail price of $79.90.

If you have any question, please send us an email at support@wacaco.com.


Coffee Virtuoso

Have had my nanopresso for 2 months now, can’t deny how good and convenient this little device is!
However, I have recently noticed that my espresso comes out (water tank runs out of water) very fast now. before, the coffee flow of my nanopresso used to be more uniform, but not it just flows too fast, which causes under-extraction to my espresso, making it taste lighter than before. I would like to know if this is a common issue of the nanopresso, or if I am missing something which can be fixed? Thank you!


Purchased my nano and I also used the espresso grind Illy coffee and the first few drops of coffee come out great then stops.
I’ve not over pumping as it doesn’t filter back into the tank. Not sure what I’m doing wrong. I’ve tried less coffee(10g to 15g), harder tamp, softer tamp, and the same results.


The cold brew method actually works really well. Using the double espresso adapter and preground, espresso grind coffee, cold water with a trickle of seltzer water, you can pull a nitro-style shot of cold brew.

Bob T

Just received my nano today. Great espresso with NS adapter. Nano with mounted NS adapter fits in the Mini case. Slightly snug when zipping. Wacaco should consider nano cases which fit mounted NS and DE units. Great machines.


Hi, recently bought the nanopresso and the extraction was amazing. However I have difficulty taking out the cover which has the filter basket in it. How should I go about doing so ?


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