James Hoffmann

Today's video answers a question I get A LOT: Why Does Coffee Make You Poop? youtube.com/watch?v=LZnAQ-… If you enjoy this (and it's a little... different to the usual thing) then do please share it!

I’m very happy to announce a new book coming next year, in collaboration with the Craft Coffee King, James Hoffman. Until Friday you can pre-order it from Waterstones with 25% off. It’s been beautifully produced with illustrations by Mariya Suzuki. waterstones.com/campaign/octob…

If you picked up a copy - thank you so much! It is lovely to be tagged in images as people receive the book! I do hope it adds a little more delight to your next cup of coffee!

The new edition of The World Atlas of Coffee is out now! (except in the USA! Coming early next month!) If you'd like a copy for yourself, or as a generous gift, then here's a few options (including the last few signed copies in the UK&US): linktr.ee/jimseven

@satiwick1 @cometeer All coffee will foam if air is introduced into it in some way (be it the churn from the tap, or the CO2 in sparkling water). Espresso or filter coffee will do the same thing, though filter coffee rarely starts as concentrated as cometeer

@jimseven Hey James, big fan of your YT channel here. I have a wonky coffee question for you - what causes this fake crema on frozen coffee from @cometeer when I add cold water or sparkling water to it?

New Video: Inside Espresso Pucks With A CT Scanner: youtube.com/watch?v=CX-aoS… Thanks to @lumafield for letting come and do silly things with serious equipment!

If you are a cafe or coffee business and you want to stock/resell the new Atlas of Coffee then let us know, and we can connect you with the publisher who will supply directly in most countries! forms.gle/ppGGF2RJShwvP3…

We decided to update an old video on V60 papers, so did way too much testing and found some interesting stuff so now I have new opinions on the subject: youtube.com/watch?v=YY5Fwj…

@JonBruner @lumafield What's the best way to get in touch?

@lumafield This was a quick experiment we ran at @lumafield using 3D printed portafilters (since stainless steel would make it hard to capture details in the coffee pucks). It'd be fun to design a real experiment with an expert like @jimseven or Lance Hedrick!

This occurred to us! We CT scanned an espresso puck that was just tamped without distribution (left) and one that was prepared with WDT (right). The red dots are microscopic voids in the pucks. The non-distributed puck is about 2% void by volume, and the WDT puck is 0.25% void.

Today's video is something a little different, but I promise it is an entertaining little moment in modern/speciality coffee's history: youtube.com/watch?v=BfNoNT…

@sasso333 Thank you!

@jimseven Shepcote but it would probably have to be a bulk order.

Strange and specifc question, I know - but anyone know anyone in London who might do custom marzipan fruit work?

@anotherfalken @pacolonso Unfortunately, due to time constraints, I need to find someone in London! Thank you though!

@jimseven They are very typical in Valencia, Spain. If you are willing to work with someone there I am sure someone like @pacolonso could be a great contact

@Acox_1 I'm aware of the work (I spoke to Chris about it last year) - happy it has been submitted and looking forward to seeing the final paper when published.

@jimseven @jimseven Check this arxiv.org/abs/2501.14950

Today's video is mostly for people starting out in their espresso journey (and, if you're already mastering your espresso, it is hopefully one you can share with friends who are just getting into it!) youtu.be/MbTD42FvMVU

It's finally done, the Tiramisu recipe is here: youtube.com/watch?v=o3AMAL… As recipes go, this is reasonably nerdy - but optionally nerdy too. Somehow, after literally hundreds of tastings... I still quite fancy some tiramisu.

If you're happy to share - we'd love to get your tasting feedback on The Decaf Project Tasting (if you took part) forms.gle/44iFdEfNPc4pnC… (Submissions will stay open for a few weeks)

The Decaf Project live tasting is going live soon! (3pm UK time) youtube.com/live/Ahvlai5JK…

And yes, we answer the question "Why is it called the Swiss Water Process if it is done in Canada?"

Today's video is the last in the series of factory tours/process explorations for The Decaf Project: youtube.com/watch?v=VUtU9U…