Scott Rao - On extraction measurement

On extraction measurement
Presented by Scott Rao
At BGE Barista Camp 2015
©Barista Guild of Europe | Scott Rao
Scott Rao is an author and consultant with over 20 years of experience in the coffee industry. Scott has owned several cafes and roasting businesses and has written four professional-level books about coffee making, including The Professional Barista's Handbook and The Coffee Roaster's Companion.
www.scottrao.com
Synopsis:
This talk discusses how to use a refractometer and the benefits of measuring coffee extraction. Extraction levels are tightly correlated with the taste of coffee, and measuring extractions makes producing consistently delicious coffee easier.

[@maniastrat]

Thank you for this great video ! It is funny after watching it of course everything seems so perfectly common sense that you would think we would have known already....But only after hearing it did I have many Ah-Ha moments. Thank you very much :)

[@fabiant1179]

Master of masters!

[@jonw00]

This guy is hilarious on Conan!!!!!!

[@ArdhitoPrimatama]

where can i get the presentation?

[@SlayPlenty]

Is there a file with the images somewhere so we can also see what he's pointing at.

[@baristamariotv]

so what wquipment do we need to get all this data? tds? refractometer? can someone help me?

[@Joeg1200]

Refractometer, VST style filters for espresso/ immersion/cupping, distilled water... Also a scale for weighing...

[@rainandjarreyn3301]

Any suggestion of a good and economical grinder that may serve as a reasonable partner with the Refractometer?

[@kcm9058]

Weber hg1 Konig ekl44-3 these are the best

[@Starlingglower]

Hi, I'm Iizzy Choi from Taiwan, is it possible for me to make a Chinese translation?

[@sriwahyanibudianingsih1534]

This presentation is so advanced. Even a normal English person doesn't understand what he's talking about. Refractometer, 19% extraction, seasoning a grinder and whatnot are stuff that scare normal coffee drinker away. I think IMO may be you also make the correct English caption as well

[@lolanatomy]

Humming goes away at about 6 minutes...

[@katherine4277]

did he say the name of the app?

[@daustin777]

No. VST Coffee Tools PRO. store.vstapps.com/ You need the refractometer to use it though, same website.

[@imalloutofbubblegum3274]

BGoE please set up your camera in center of room.

[@ZeeThustra144]

"I could've thrown some robusta in there to make you really happy" , Scott Rao 2016

[@Fitzrovialitter]

"tamping harder, does it make a difference?" Does it? Why would it?

[@CaptainKuul]

what is a badge brew?

[@Ouipeetz]

Batch brew. Large drip coffee

[@thepiecesfit5049]

Not sure this was asked but how do you achieve a longer contact time with a coarser grind? The water will flow faster thorugh the coffee when the particulate is larger. Unless there is a flow control switch this doesnt make sense to me. You generally need to grind finer to increase the contact time.

[@ihaventstart]

thepiecesfit This is just my interpretation but I believe near the end, he clarified that notion. The point was a side by side comparison of 2 coffees with the same dts, one achieved through a coarser ground and longer brew time would be preferable to a coffee which was made with a finer ground and shorter brew time.

[@kadendecker211]

Brew basket with a smaller diameter

[@rainandjarreyn3301]

Where can we purchase this REFRACTOMETER? How much?

[@MrNotesofmusic]

You can buy it off vat coffee tools just google that right up. If you have an account with a specialty coffee roaster that supplies you tools, you could request one. Lastly, a coffee refractometer costs about ~1000 dollars but takes considerable amount of money to maintain the acesseries ($3 dollars a filter, you'll go through maybe 2 a day) and that's like $1000 upkeep a year

[@kwongheng]

You can look for Atago Pal refractometer on google too. I am using that. Its from Japan if I am not wrong.

[@JuliusSP1]

how is that working for you?

[@SpencerDonahue]

Anyone try out his theory on immersion brewing with their aeropress? Ill give it a try tomorrow.

[@SomaKitsune]

I'm interested how you went?

[@cinzo]

SpencerDonahue I need a two year update. Thanks.

[@klandry94]

5 year update? Thanks

[@KuropatkaJoe]

It will not work with immersion brewing or aeropress unless you filter out all the undissolved particles with fine paper filter. (Like chemex or hario ones) otherwise you cannot rely on refractometer measurements as it will be incorrect

[@thijsbaarda]

lol @ seasoning box

[@thepiecesfit5049]

Few kilos of coffee to dull the burrs? Cmon thats super wasteful. I understand if you are running a coffee shop maybe. But a home user please dont waste your coffee.