blog about the daily developments at STRIETMAN

blog about the daily developments at STRIETMAN


STRIETMAN, founded by Wouter Strietman, is a company developing and designing coffee related products for the household environment.

These products excel in quality and craftsmanship. Simple and reliable engineering, built to last forever.
The Strietman espresso machines are produced in The Netherlands using a small-scale industrial production line. The machines are carefully assembled and tested.

The ES3 espresso machine takes the art of coffee making back to its essential origin. The technology involved has been simplified and made visible in every detail. The machine is operated by hand and for full quality control you can rely on the judgement of your own senses.
Perfection, simplicity and transparency have been the leading principles during development. To safeguard reliability, security and sustainability, we prioritize CE certification and therefore our machines comply with the European standards for these devices.

Strietman aims to appeal to users looking for the best possible taste from a machine that looks great because of its build quality and durable engineering.
Celebrate the coffee ritual, the joy of a perfect espresso being a quality part of life.
Focus on the pure simplicity, having a piece of solid traditional engineering to allow a sensory experience of coffee preparation.


EX VAT: € 1300
21% DUTCH VAT INCL: € 1573




The restauration of 3 Probat Sample Coffee Roasters

ES techniquesPosted by Wouter Strietman Fri, August 03, 2012 18:22:31

Last week I received 3 Probat Sample Roasters to restore from Mr Caffenation, Rob Berghmans... I think this project caught me.. Very intriguing machines. Very basic, but everything is there. And the fact that I could keep one for myself persuaded me to put my heart in it!

They were in a terrible condition, none were working, one was burned through. But deep underneath the dirt lie some beautiful techniques. I have stripped them down totally, they needed one can of oven cleaner each! There was so much ash in the air extraction chimneys, they where totally blocked. And you wondered why the air-flow didn’t work?

I love these sort of projects. Cleaning up and polishing.. slowly you see the machines come to life again. It will turn into a sort of worshipping! for me that is..

They are clean now. Next on is testing the air fans, rotation motors and electrics. I will be changing the elements, they've had there time, these are from the early 70s, they use 1200 watts, but elements now are much more effective and efficient..

I am pretty confident that all 3 machine will grab live again. Really looking forward to start testing them, and see what they are capable of.

It seems like a proper setup. A thin barrel of 1 mm steal, the body is made of Casted aluminium. covered up in fresh isolation ( got rid of the Asbestos, no more of that please ) When you have a proper element underneath the barrel and a good temperature adjuster, I think it can react to temperature fluctuations quite fast. You will need some temperature gauges for Barrel temp and air flow temp. Then you are good to go.

After that I need my insite man Jeff Verellen, the master-roaster of Caffenation to help me understand al the finesses of the Craft of coffee roasting. We should start to play around with air flow and temperature adjustment on these little machines, and see how it reacts on the bean. Looking where to mount the temperature probes, see how to get as close to the roast profiles of a big batch Roaster.

It is at the end the challenge to test A roast on the sample Roaster; when you have found the perfect profiles, you should be able to copy it to the big batch roaster and have the same result..

Ofcourse everything I learn from this project will be the startingpoint for the development of my own Sample Roaster.

The development of my ES2 espresso machine told me a lot, and it seems like a small step to develop a Sample Roaster. The same materials are used (metals) the same sort of electrics, and the same product, the coffeebean! The same rules for heat transfer, temperature stability..

A project like this teaches me a lot. Trying to get your hands on as much different Sample Roasters as possible.. Looking at old techniques, testing them, trying out. Then take the good things, and bring them together. And use your immagination and creativity, and design skills.

-This is just the start..more will follow soon

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Extracting with the ES1

ES techniquesPosted by Wouter Strietman Sun, November 27, 2011 00:38:15
It actually works!

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How to take it apart?

ES techniquesPosted by Wouter Strietman Sun, November 27, 2011 00:28:33

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ES techniquesPosted by Wouter Strietman Sun, November 27, 2011 00:22:37
A picture of the ES-0 in action, this machine was the first working prototype made by EspressoStrietman.

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In the workshop

ES techniquesPosted by Wouter Strietman Tue, June 14, 2011 23:41:24
In the workshop of EspressoStrietman the fine art of espresso machine building is practiced. It is an ongoing challenge, designing / testing / assembling / dissambling / redesigning and reassambling. EspressoStrietman is finding out what it means to be an espresso pioneer.

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ES techniquesPosted by Wouter Strietman Tue, June 14, 2011 23:29:54
For me the craft of espresso machine building is about playing with the technique, combining, trying and finding out. This picture in particular is about bypassing fixed systems to find new ones.

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The ES-0

ES techniquesPosted by Wouter Strietman Tue, June 14, 2011 22:53:58
The ES-0 was a technical tryout. It was still in an experimental fase..

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