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41
Heya guys! Just had a curiosity...

I'm relatively new to monitoring temps while roasting (for many years just roasting on the 'fly', time-based), but was wondering something.

In terms of consistent roast depths, is it better to roast to:

a) a relative temperature point based on when first crack occurs/ends

Or

b) absolute temperature point (just ending when the beans hit a certain temperature)

Am not sure if what I'm saying makes sense, but I recently did a few roasts, the first two roasts FC happened pretty much the same temps. The third roast it was slightly different measurements..

Eg If in roast:

1) FC happened at 205, rolling was 212, end of FC was 220, and I pulled the roast at 224

2) FC happened at 211, rolling was 215, end of FC was 223

As the numbers are slightly higher, in order to get a consistent roast depth, would it be better to end that second roast at the exact same temp (224), OR end it relative to the end of FC in that first roast (about 4 degrees past the end of FC) which would be 227 degrees?

I hope this made sense haha.. thanks guys :)


(And obviously the profile ie how it got there matters, but I mean if I keep the same profile. These two profiles are attached too just for more info. The probe position was the same in both, and ambient temps were the same)
42
that's why I suggest stockpiling in your fallout shelter folks - better safe than sorry !
43
Have your say / Re: Climate change threatens world coffee supply
« Last post by admin on 20/10/2018, 12:46 PM »
interesting article from SMH last week: https://www.smh.com.au/national/nsw/the-ugly-truth-about-coffee-sydney-roaster-in-fight-to-keep-industry-alive-20181013-p509gj.html

"Greg Meenahan of World Coffee Research is predicting a shortfall of 180 million bags of coffee by 2050. “Demand for coffee is expected to double by the year 2050, and if nothing is done, more than half of the world’s suitable coffee land will be pushed into unsuitability due to climate change,” he says."

44
New Here? Drop in and Say Hi. / Re: driving with generator on
« Last post by askthe coffeeguy on 19/10/2018, 12:57 PM »
best to refer to the manufacturer specifications pretty sure gas operation is ok and I know folks who drive with generator on so that theyre ready to go at each destination but I definitely recommend checking the specifications I guess you'd also want to ensure that the space housing t he generator is very well ventilated!
45
Espresso Machines / Re: Espresso Machine Photo Gallery
« Last post by ozregular on 19/10/2018, 11:12 AM »
Here are a couple of pics of my last couple setup

first the r58 with some custom timber additions, and recently upgraded to a gs3 also with custom timber panels steam lever modification and had it powder coated in black.
Absolutely loving the gs3 and the only other machine i can see myself changing over to in the futere would be a slayer

Grinder is a mazzer Kony E


I love those timber accents, can you please tell me how I can get that done for my Rocket machine?
46
New Here? Drop in and Say Hi. / driving with generator on
« Last post by coffeetogo on 19/10/2018, 07:17 AM »
Hi Everyone,
Looking for some advice is it safe to drive with a petrol generator on?
47
Projects & Rebuilds / Re: built myself a coffee cart !
« Last post by askthe coffeeguy on 18/10/2018, 10:08 AM »
yep me thinks at least one other cart and some new coffee equipment!
48
Projects & Rebuilds / Re: built myself a coffee cart !
« Last post by Simon on 17/10/2018, 10:09 AM »
just landed a couple of events one with 1000 people potentially attending and another with 3000 (this one not till early next year) - did someone say "equipment upgrade?"
Wwwowza! That's a few beans ground ;D. Good stuff
49
Roasting - How To do it / Re: Roasting for immersion Cold Brew
« Last post by askthe coffeeguy on 17/10/2018, 07:04 AM »
Lol

so accurate and we'll put!
50
Projects & Rebuilds / Re: built myself a coffee cart !
« Last post by askthe coffeeguy on 17/10/2018, 07:01 AM »
just landed a couple of events one with 1000 people potentially attending and another with 3000 (this one not till early next year) - did someone say "equipment upgrade?"
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