Delter Coffee Maker VS AeroPress Coffee Maker

DELTER VS AEROPRESS

One of our most asked questions for 2019, we have decided to dedicate a full blog article looking at the differences between the new Delter Coffee Maker and AeroPress Coffee Maker.

For a long time, there has been no contender against the AeroPress Coffee Maker, the infamous portable travel espresso maker which is enjoyed by countless fans all over the globe. But this has all changed with the bold arrival of the Delter Coffee Press. Does the Delter have what it takes to go up against the global brewing institution that AeroPress has established? We believe it does, and more, we believe it may even have what it takes to topple it.

We were one of the first in the world to rigorously test the Aussie-designed Delter – from its secretive infancy in prototype form, all the way through to the very first production model. And we have been blown away by its capabilities at every single development step along the way.

After hundreds of emails and questions received by our customers asking about the differences between AeroPress and Delter, we have decided to break it all down and take a closer look at each device, so you can make your own decision on which portable coffee press is for you.

AeroPress Coffee Maker

Launched in 2005, the AeroPress has become a staple in every brewing enthusiast’s line up, and more broadly, has become a mainstream commercial success. And for very good reasons. It’s affordable, easy enough to use and at the time of its inception, made vast improvements to the clarity of filtering achieved against the rival French press immersion brewers that have become synonymous with coffee itself.

The AeroPress is also incredibly easy to travel with and its build of materials (currently polypropylene) means it’s virtually indestructible. It also happens to be one of the simplest devices out there to clean, with that satisfying ejection of the coffee ‘puck’ after each brew.

So, what are some of the features unique to the AeroPress?

Immersion Brewing

The AeroPress uses the same technique as its ‘French Press’ predecessors for coffee extraction, known widely as immersion brewing. Once the filter is attached to the chamber, coffee is added to the brew chamber followed by heated water, usually just off the boil. The coffee extraction process starts immediately, with the hot water dissolving the soluble coffee particles, and over time the ‘ideal extraction’ is reached, where overall flavour is balanced. At this time, the user will then plunge the coffee ‘beverage’ through the remaining insoluble coffee grounds via the filter, and into the cup.

While this process is widely known and accepted, it has many potential flaws including uncontrolled extraction, and unwanted agitation. This is particularly made apparent using the “inverted method” on the AeroPress, where the user flips over the device while water and coffee grounds are mixing, which generally causes an intense ‘spike’ in uncontrolled agitation due to rapid mixing of particles with the water, and this results in an over-extracted coffee – or at the very least – an unrepeatable brewing result.

Delter Coffee Maker

The Australian designed Delter Coffee Press launched from nowhere in late 2018 with a whopping ‘350%-funded’ Kickstarter campaign, which was achieved in just 7 days.

With ‘underdog’ status, and remaining largely unknown to the world at this point in time, the Delter offers some incredibly thought out engineering features that not only trump the AeroPress, but also any other brewer on the market. It short, it pioneers a completely new way to extract coffee, full stop.

In an industry that is saturated by an immeasurable number of companies and their ‘unique’ brewing products (which are all practically the same), it simply amazes us to see that a small business with unknown status can come out of nowhere with the most revolutionary product that we have seen to date.

So, what makes Delter so unique?

Injection Brewing

When we first learned of the ‘injection brewing’ process, we admittedly rolled our eyes, probably just like every other enthusiast out there when they first hear the claim by the Delter team.

However, when we got our hands on the Delter for the first time and saw it in action, our indifference was immediately transformed into excitement. The jet-seal, combined with the unique plunger design, allows the user to inject water through the coffee by a set volume and time, under pressure that can be controlled. In one sense, this ‘volumetric’ approach is very similar to that state-of-the-art espresso machine with wooden handles, featured in your local specialty café.

The main advantage of this feature is that the user can gently pre-infuse the coffee – or even bloom if desired – in addition to controlling the overall time and pressure of the water and coffee contact. The result is a cleaner taste that has much more clarity in the cup, and less tendency to get bitter results from unwanted agitation.

Interestingly, the nature of the jet-seal also means that coffee extraction occurs more quickly, so there is less waiting around for the ‘ideal extraction’ to be reached.

 

Differences Between Delter vs. Aeropress Coffee Makers

Brew Method

As discussed in detail above, the AeroPress uses ‘immersion method’ brewing, and the Delter uses ‘injection method’ brewing.

Immersion means less control and more likelihood of bitter coffee.

Injection means more control, and less likelihood of bitter coffee.

Brew Volume

AeroPress has a set volume of approximately 220ml. There is no work around to this if you want to make larger batches of coffee, or a serving for 2 or more people, apart from diluting a stronger ‘shot’ which we all know is less than ideal. The volume markings are ambiguous at best, and not normally used.

The Delter has accurate water level volume markings, and you can easily brew a batch of 400ml. This is due to the jet-seal design that keeps coffee and water separated. For a larger batch as an example, you can dose 25g of coffee, and then simply refill the brew chamber after the first 200ml is plunged through.

Cleaning

AeroPress wins here. No other device has that satisfying ‘pop’ when the grounds are neatly ejected.

Delter cleaning is still very simple. You raise the plunger after the brew to press through air, which ‘dries’ the grounds. Then you twist off the cap, and can tap grounds out and rinse. Overall, it’s about 5 seconds longer to clean. The brew chamber on Delter remains crystal clear as grounds are never in contact too, so it gets points for those who appreciate aesthetics.

Filtering

While AeroPress advanced leaps and bounds from the traditional French Press, it still has that annoying ‘grit’ in the bottom of the cup, which is due to the bypass design (slots around edge of cap). Don’t press too hard, or those grounds will find their way over the filter and into your finished cup..

When we first used the Delter, we found the cap a bit tight, but then learned why. It has an o-ring seal that creates a ‘non-bypass’ filter effect. Make sure you twist the cap fully tight with this in mind. The result is sensational, and the filtering is much more akin to a V60 pour over. For those who don’t know, this is basically as clean as filtering your coffee can get.

Materials

The AeroPress has evolved over the years, with current materials used being polypropylene. This material means it’s not possible to have a clear chamber, but the build is solid.

Delter uses Tritan Copolyester, which is clear and looks like glass. It’s also indestructible and will withstand any environment you find yourself in.

Portability

AeroPress speaks for itself, just visit their Instagram page to see countless brewing shots on mountain peaks and remote locations all over the world.

Delter is on par here, if not slightly more portable, as you can grind your coffee and screw on the cap before you go on your wilderness adventure. Once at your destination, just add hot water and you are good to go.

Should you buy the Delter or Aeropress Coffee Maker?

Both products are great value when you weigh up all of the features. Both products are also incredible innovations for their time. But if we had to choose, we would simply state that it’s now 2019, and no longer 2005.

Purchase the AeroPress Coffee Maker and Delter Coffee Press here. We ship worldwide!

See our video breaking down the AeroPress and Delter Coffee Maker:

 

See the AeroPress Coffee Maker and Delter Coffee Maker in action:

 

41 thoughts on “Delter Coffee Maker VS AeroPress Coffee Maker

  1. I’ve been using the Delter every day since the kickstarter. SO much better cup than AeroPress. Easier to push, much faster… and the result is more refined.
    It makes the AeroPress feel like an old French press in comparison.

  2. My AeroPress and my Delter sit side by side in the cupboard. Since the Delter arrived, I’ve not used the AeroPress once. Delter is better on virtually every measurement.

  3. My AeroPress and my Delter sit side-by-side in my cupboard. Since the Delter arrived, I haven’t reached for the AeroPress once. The Delter is better on virtually every measure.

  4. Perhaps I’m using my new Delter incorrectly but I find the brew too weak given the same amount of ground coffee used in my aeropress?

  5. The only two issues I have with the Delter Press is, 1. I am unable to get it to produce any “crema” where as with inverted method on Areo Press works every time 2. Clean-up on Delter Press when using Stainless Fliter is not so good.

  6. The delter is amazing. At first I was not sure if I liked it better than my old faithful aeropress but it has quickly become my one and only coffee maker at home and work. I drink long black with pouring cream and this makes the smoothest coffee. After some advice on tecnique from the Alternative brewing team, I found the best way for me was to use a fine/medium grind, fill to the 200ml mark with boiling water, pull back and press 50mls, wait 30 seconds then press all the way through. Beautiful and smooth tasting with no bitterness. The only thing that the aeropress wins on is ease of clean up as you can pop and wipe while on the move, but the more I use the delter the simpler it is to push and rinse. I would add that alternative brewing is an awesome company to deal with. In my opinion this is the perfect affordable gift for a coffee enjoyer.

  7. Hi guys, has anyone actually done their homework of showing how the extraction yield differs between this and aeropress at the same grind setting, dose and volume, as well as how the resulting cups taste?

    It looks like the retained liquid will be fresh brew water and not immersion water, so I’m guessing that this would be a more efficient brewer than the aeropress in the sense Matt outlined here: https://baristahustle.com/blog/immersion-vs-drip-coffee-brewers/

    Can you do a long steep time with this? It looks like the “blooming” can only take place in the black cap; in other words you can’t leave a large amount of water exposed to the grounds. Does the cap area limit the space into which the coffee can expand?

  8. I have had my Delter for a few days. A word of caution: the surface area of the base is narrower than the Aeropress: mugs that my Aeropress was too narrow for fit my Delter well. But this means that wider top mugs are too wide for the Delter. I gave myself a second degree burn extracting coffee in my Delter yesterday – unthinkingly using a mug I often use with my Aeropress that has a wider opening – too wide for the base of the Delter – it slipped as I was plunging, diagonally inside the mug, and the boiling water in the chamber spilled out and all over my thigh. Take care!!!!!

  9. I have recently seen the 2pour that is designed with the Aeropress in mind to make two cups of coffee, does this work with the Delter, and will you be stocking them? Very tempted to try the Delter to compare…

  10. Thanks for doing a comparison. I was tempted to back the Delter on Kickstarter, but decided to wait. The small stated dose put me off a bit, but it sounds like maybe you can actually go with a higher dose in it than the 12g Delter recommend. I found all the ‘problems’ you mentioned about the Aeropress quite interesting. I guess as a retailer these might be the sort of things you hear from people who use it without due care for the process. I don’t experience any of those issues with my Aeropress, but then again I am a full on coffee geek that enters Aeropress competitions and the like. Thanks again for the write up, I think I’ll be getting a Delter in the near future.

  11. I actually went back to the Melita funnel method, finding the Areopress too messy. Whether I eject the puck into the bin or the sink, I still have lots of grounds to rinse out and deal with. I use the Areopress inverted method and find the taste roughly the same, but then there’s a fair bit of agitation in both.

  12. I have owned an Aeropress for a rather long time and have loved the portability and consistent brewing ability of the Aeropress UNTIL I bought into the Delter revolution. Revolution you say … well yes! For me the process is both easier … (who would have thought that!) ….. cleaner and infinitely variable in volume of water added, coffee ratio etc etc.

    As it is dimensionally “similar” to the Aeropress portability is similar.

    As per injection vs immersion well the proof of the pudding is in the eating and I can taste the difference across beans and roasts much cleared when I test using the Delter prior to testing with the Silvia

    I think the choice is clear for me …. Delter is numero uno in the current world. Vale the Aeropress …..

  13. I’m pretty excited about this brewer, but I feel like versatility should have also been a consideration in this review. The Aeropress can produce a number of different cup types, including strong shots and cold brew coffee. It also has accessories like the Prismo or Puckpuck that further expand that functionality. I’d venture a guess that the Delter does one thing incredibly well, and that for quick brewing and travel, it’s likely superior, but I can’t see it having the sheer range of possibilities the Aeropress has. Make no mistake, I’m getting a Delter for travel, but for the experimenter, I can’t see it outdoing the Aeropress.

  14. Any Idea if the diameter of the plunger allows you to store the Aerogrind grinder from knock inside the like you can with the beautiful symbiosis that is the aeropress and Aerogrind? I LOVE traveling with my grinder and my aeropress inside eachother so that they actually only take up the space of the size of the aeropress. Thanks!

  15. Been using the Rhini mini hand grinder that fits neatly inside my aeropress for travel – does the Delter have the same space inside the plunger to neatly store my grinder while on the go?

  16. The Delter is great, but I’m much more likely to burn myself. I don’t know about everyone else – but a tiny bit of boiling water stays in the chamber even after I’ve pressed the entire way. If I tilt it as I move the press to the sink, I will definitely get hot water on my hands.

    Having said that, this is the only fault I could find with the Delter press. I also like the very clear volume measurements on the sides.

  17. I love my Aeropress and I will not out of principle use the Delter – always easier to attack a market from behind when you reverse engineer a competitors product – my opinion only .. and I sincerely hope Delter didn’t require “Crowd funding” to finance their product.

  18. Seems odd that the able filter doesnt work with the delta when the ten mile works on both. In what way does the able filter not work?

  19. I thought the Aeropress was to the ‘French Press’ what the ball-point pen was to the quill. I was so impressed I bought them for my kids and friends! So when the Delter was touted as even better I was prepared to jump into the 21st century; but I have to say the reality is underwhelming. Comparing cups measure for measure, both with paper filters and both with 10 Mile filter, same temp water etc I find it hard to detect any improvement in my drinking coffee. I’ve played around with it for quite a while now and frankly, wouldn’t bother buying or recommending one. My experience is that the Aeropress is every bit as good but much less ‘fiddly’ both to use and to clean. Just my 2c.

  20. I was a Delter backer, and now a former AeroPress owner. I’ve been using the Delter for about 3 months now – it is so consistently good that I even prefer it vs my Moccamaster (which is sad because that thing cost a lot!).

  21. Does everybody here use just 12 grams of coffee. With my favourite coffee Yirgacheffe it seems a bit to light. The fruitiness is not really coming through like the V60. Please let me know. I really love how the delter works

  22. I had been using the Aeropress for several years and found it made a good coffee but could never get it to a great coffee, so I thought I would give the Delta press a go.
    I was a bit sceptical at first when I first took possession of my Delta Press, thinking this is just a “hyped up” version of Aeropress, however after a little trial and error (of course I didn’t read the manual).
    Once mastered I found that it brews exceptional coffee hands down, leaving the quality of the Aeropress in its wake.

    1. I just tried using it to filter my cold brew after letting the coffee brew overnight.

      The seal doesn’t work as well with cold water. It ended up making a mess everywhere because the water doesn’t flow through to the larger compartment quickly enough, due to the coffee grounds getting in the way.

      I’ll be sticking to using a muslin cloth.

  23. I trialed my Delter today after making a great brew with my Aeropress. From the outset, I should state I am an almost exclusively an espresso man and, in recent times, even my Aeropress has been sidelined by my Wacaco Nanopresso, when away from home.

    I had some recently roasted Kenyan beans but these had received a D minus from the family when espressed. My bean supplier had encouraged me to try with a different brewing process, so my first thought was the Aeropress. The taste was very different, but great, so I thought I would unbox the Delter and see if I could taste any difference.

    While I should have read the instructions about not dosing the cap, everything else went swimmingly. The taste seemed much cleaner and I think could taste subtle differences in the palate. Anyway in the immortal words of Ron Barassi, ‘that practice makes perfect is bullshit, perfect practice makes perfect’, I will put the Aeropress away and shall master the Delter.

    I agree that cleaning up of the Aeropress is better, but again I ignored the advice about pumping air through the puck.

  24. I have been a loyal Aeropress user for years. The quality of the coffee beats any similar device. Convenience for travel has been the selling point. I’ve gone through a half dozen units; eventually the seal tightness fades. But I’ve kept buying fresh ones, because I like my coffee on the road.

    Until Delter. Sure it’s a little fussier than the Aeropress and I have to get used to a new way of doing things. But that very first mouthful sold me. It’s good. It’s about the same size, shape and weight, and I don’t have to carry the stirring paddle. The only problem is that I have like a million Aeropress filters, and they don’t fit the Delter, being just a couple of millimetres wider.

    1. Hi there!

      Thanks for your question. Yes you can, they are only slightly larger than the Delter Coffee Press so you may find they just crimple a little in the filter.

      Hope this helps.

      Kind regards,
      Alternative Brewing

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