Why we need to stop obsessing about brew temperature

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Coffee pros have been obsessing over espresso brew temperature for the last couple of decades (at least). In part 4 of our series of espresso extraction, we ask the questions: Is brew temperature really the holy grail for perfect espresso?…and if so, then what temperature should I set my machine?

Links mentioned in the video:

Sections in this video:
0:00 Does brew temp matter?
1:00 Brew temperature test Results
2:16 What about small changes?
3:11 Why a 'Magic Number' doesn't exist
5:53 Finding the right brew temp by taste

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Decent DE1 measures right at the puck and has a cool water pipe to make fast adjustments. Cant beat it. Yet.

robertusga

love how you actually prepared some potatoes to underline the roasted dinner thing

maxzandro

Intrestingly discribed, nice editing and really good quality of video and content : )

vee_limbu

Just to put things in the right order with the Linea Mini used for the purpose of this otherwise very useful video - the Linea Mini has a temperature probe right above the intergrated grouphead (E.3.013 in the parts catalogue) and sits between the brew boiler and the grouphead. The offset on the Linea Mini is less than one degree °C. It’s misleading to point at the steam boiler and the grouphead to illustrate what temperature offset means on a Linea Mini. But I totally agree with the importance of measuring the offset on other machines and with dialing by taste!

Jaroslav.

85 for extra dark, 90 for medium, 95 for light! Roughly! 👍

richardmiddleton

Hey, you made a video on what barista’s should not due. I went to a coffee shop and they they wiped the puck group head with a rag that had the remains of coffee hounds on the rag and the puck basket was not completely cleaned and you could taste the old grounds that were left in the basket

steverummel

This video is very interesting. You suggest dialing in your recipe, but temperature affects flow and extraction so you can’t keep your recipe controlled. If anything, you’ll have to dial in per temperature to fairly compare temperatures by taste.

espressofun

Well one reason the brew temperature makes sense to have right is because just like cannabis, the natural aroma produced by the natural terpenes do have a boil point in which some are completely destroyed when too hot and cold actually preserves the terpenes naturally.

criptoejesus

I am not a Pro - (that said) - I DO pay a great deal of attention to brew temps, as we know it has a great impact on taste. I also pay attention to preinfudion.
We know the altitude the bean was grown in will determine at what temperature the bean will like best in extraction.
I really noticed all of this in brewing coffee long before I pulled my first shot of espresso.
That said - Here in America, brewing my coffee at 700 ft above sea level, if I am making Brizillian Coffee I will brew it at 203 degrees Farienheit - and if pulling a shot it will be at 202 Degrees with a 5 sec Preinfusion.

I will often search for the temperature based on the roast, and where it was grown, A Bolivian Medium Roast I will brew to the sweet spot of 200 degrees farenheit . ( all of this is based on my machine which will vary from others).

Yes dial it in by taste - but based where to start on the type of roast, and the region & altitude where it is grown, and even the altitude of where you live. (It does affect the brewing point) Boiling Point of water at 12000ft is much different than the boiling point at sea level.

That is how I do it.

nomadsolos

1- You said it in the video, temperature must come after all others variables are taking care of

2- Having a PID does not mean you have to focus on a particular temperature number. The great thing is that now machines let you choose the temperature, so you can brew hotter or colder.
That's just it. Personaly I don't care about the displayed temperature value. If I need a hotter temperature I press up, otherwise I press down.
Like all parameters and especially the most important ones, you need to learn the "standards" and then "get rid of them" and adjust it to your own taste. Just saying "95 for light" and applying this for all light coffee is not bad, if all other variables are set correctly. But then you are missing out the research of your own perfect shot.

tdmfr

My machine doesn't have an option for a specific temperature in degrees. My choices are low, medium or high, whatever those actual temperatures are.

catherineostrom