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Tonino Unpacked and Unleashed
The Tonino arrived. It's a new tool for coffee roasters to measure the color & darkness of their roast. Previously, such devices were very expensive (3000--15000 Euros) and only industrial roasters...
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Grinds in Heat
With the Winter Olympics going on and especially the Dutch picking up so many medals in speed skating which is traditionally being regarded as the one competition defining the world pinnacle of winter...
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Onze excuses voor het ongemak
De mensen van Amber Alert stuurden vanochtend een chaotische mail vol HTML codes. Vanavond kwam de verbeterde versie en daarin werd ook uitgelegd wat er mis was gegaan: het was een technische...
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Roasting beans from Los Lajones in Panama
Onno van Zanten kindly let me have 2kg's of beans from Panama, produced by farmer Graziano Cruz, a crop from his Los Lajones farm.This time I tried two different profiles. First, the "stepped" profile...
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VST Labs Coffee Refractometer & App
How much of the coffee you ground has been sucked up by hot water and arrived in your cup to taste? Is it the considered optimum of 20%? You can bake your puck and weigh it later to guess, but you...
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Pas toch op uw man!
Een gewaarschuwd mens telt voor tweeHet zal je maar gebeuren. Zo heb je een man en zo is-ie weg, sta je met lege handen. Met hele dure ras-katten gebeurt dat ook weleens, het zijn allemansvriendjes en...
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Vigorous stirring
The procedure for measurements as advised by VST labs is (in my words): 1) allow 1 minute for espresso to cool & CO2 to diffuse out of solution. Stir sample 5-6 seconds2) with new unused syringe...
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Hoe groot is een voetbalveld
Vanmiddag was er vuur en vlam in Brabant."De natuurbrand die vanmiddag woedde in het Nationaal Park De Loonse en Drunense Duinen is onder controle. Het vuur is gedoofd, maar hier en daar smeult het nog...
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Filternatives
I admit, when I ordered his VST Refractometer, Vince from VST labs already suggested I might order extra syringe filters but at the time, 50 of those seemed a lot to get started. Of course I rushed...
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We thank G
A stairway in the Amsterdam Museum of Photography "Huis Marseille". Someone has carefully lettered a message on the wall, maybe explaining something about a picture nearby. Someone else has rushed to...
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Espresso Centrifuge
Still trying to learn more about the filters to use in espresso filtration for refractometer measurements I emailed Wybo Dekker, a friend who has conducted chemical analysis all his life until his...
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Zentrifugalbeschleunigung
I'm so happy with this machine, in part because I learn beautiful new words from the manual, like Zentrifugalbeschleunigung. Abbreviated RZB for relative Zentrifugalbesleunigung. It's the German word...
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Indonesia Raja Batak
Measuring setup. Filters & alcohol swipes & pipettes, centrifuge tubes & stoppers, refractometer, espresso, fountain pen, notepad, distilled water dispenser, Amprobe temperature meter,...
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Comparing filters, centrifuge and no filter
Someone asked me what's the difference between filtered and unfiltered espresso on the refractometer and I had to admit I hadn't thought "out of the cup" yet and never tried.Now I did: I took 18g of a...
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Stephen Sweeney's TPF - Transparent PortaFilter
Stephen Sweeney from Seattle enjoys some fame in the espresso world for a number of custom made modifications he has made: transparent acrylic super-magnetic bases for baskets and portafilter holders...
View ArticleStephen Sweeney's TPF -- video's
Stephen Sweeney's TPF - Transparent PortaFilter from Roemer Overdiep on Vimeo.Stephen Sweeney from Seattle enjoys some fame in the espresso world for a number of custom made modifications he has made:...
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Bolt-Efeu "Premsela" vulpotlood
Op vrijdag 17 augustus 2012 overleed op 94-jarige leeftijd Bep Premsela, een lieve, milde, zeer ontwikkelde en knappe vrouw, weduwe van Robert "Boet" Premsela die vijf jaar eerder op 92-jarige leeftijd...
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Sturen en dromen
Wie stuurt, zit doorgaans fier rechtop. Veel verkeer zie je in de verte aankomen maar er kan vooral op de grachten in het centrum uit een dwarse gracht ineens een gigantische rondvaartboot komen en die...
View ArticleThe Last Blast
THE LAST BLAST from Roemer Overdiep on Vimeo.Stephen Sweeney built us a Transparent PortaFilter and the first two video clips we made were eye openers for many coffee aficionados. Still, there is more...
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