Not a member yet?
Click here to register.

Forgotten your password?
Request a new one here.

Shoutbox

You must login to post a message.

renatoa

09/14/2023 1:29 PM

, madcow

allenb

09/12/2023 12:10 PM

DragonCoffee

renatoa

09/10/2023 6:26 AM

, Burfelt

allenb

09/09/2023 11:25 AM

philosofool

allenb

09/08/2023 7:44 PM

boricuajc

Shoutbox Archive

Forum Threads

Newest Threads

First Fluid bed test...
Bubblebed roaster ba...
Apwollo 11 roaster b...
Roasting 2kg with DI...
fan to extract air f...

Hottest Threads

Bubblebed roaster...	[20]
Thermocouple Woes	[18]
Apwollo 11 roaste...	[16]
2 lb Fluidbed Build	[16]
Trouble with down...	[9]

In Memory Of Ginny

Donations

Latest Donations
dmccallum - 10.00
JackH - 25.00
snwcmpr - 10.00
Anonymous - 2.00
Anonymous - 5.00

Users Online

Guests Online: 9

Members Online: 0

Total Members: 7,941
Newest Member: madcow

Oh no! Where's the JavaScript?
Your Web browser does not have JavaScript enabled or does not support JavaScript. Please enable JavaScript on your Web browser to properly view this Web site,
or upgrade to a Web browser that does support JavaScript; Firefox, Safari, Opera, Chrome or a version of Internet Explorer newer then version 6.

View Thread

Homeroasters - Home Roasting Coffee Community » THE ART OF ROASTING COFFEE » Roasting Chemistry

Who is here? 1 guest(s)

Coffee losing flavor quickly.
threwitallaway	#1 Posted on 11/12/2014 5:14 PM
1/4 Pounder Posts: 117 Joined: April 02, 2014	Hi all, I wanted to ask about a phenomenon I have noticed in some of my roasts sometimes. I might roast a coffee with particular notes such as an Ethiopian Yirgacheffe Natural process or Panama Elida Natural. They have great fruit within a few hours and into the the next day, but by the second or third day the fruit has faded and become muted or almost disappears. This may be a Roasting 101 question but I'm not exactly sure what factors contribute to this. FYI, none of these coffees are being dropped much past 416F-425F BMT, so not too far past 1C but with ample time for development. If I had to shoot-from-the-hip on this one I would say I need to approach 1C with lower temp and ease into an earlier drop temp like 410F or so. Thanks in advance, -nate __________________________________________ Hottop B-2K w barryR thermocouple mod, Mazzer Mini /Super Jolly burrs, Salvatore E-61 group machine, Aeropress, French press.


oldgearhead	#2 Posted on 11/12/2014 5:52 PM
1 1/2 Pounder Posts: 1128 Joined: February 10, 2011	Mr. Away, That Panama Elida Natural is probably bad. Just sent it to me and I'll test it. It's been my experience fluid-bed roasted Panama Elida Natural tastes just like blueberries after five days rest..Maybe its a storage issue? I tighten the caps on my Mason jars ten hours after roasting and let the coffee rest for at least three days.. Edited by oldgearhead on 11/12/2014 5:58 PM


jkoll42	#3 Posted on 11/12/2014 7:55 PM
1 1/2 Pounder Posts: 860 Joined: February 14, 2011	Nate - where did you get the beans from? Like what ogh said how are you storing after roast? I can't really comment on roast times/ror during roast since I have never roasted in a hottop. I've found that if the beans are high quality, fresh and stored sealed after roast from those type of beans I get an almost overwhelming berry flavor early on that balances out to a prominent berry after 4 or 5 days. I have experienced the issue you are having but it was in a popcorn roaster a very very long time ago and it was so early on in my roasting I have no clue what the issue was at the time! -Jon Honey badger 1k, Bunn LPG-2E, Technivorm, Cimbali Max Hybrid, Vibiemme Double Domo V3


threwitallaway	#4 Posted on 11/12/2014 9:26 PM
1/4 Pounder Posts: 117 Joined: April 02, 2014	Jon, it can happen with any coffee. Not just Ethiopians or Panama Natural. Beans are from all different but reputable sources. HT roasting is like any other roasting except you must plan for the electric element to gain or lose heat slowly, so it's like driving a large ship; plan way ahead for the turn. @oldgearhead, waiiit a minute, sounds like a clever ploy to get some free beans! -nate __________________________________________ Hottop B-2K w barryR thermocouple mod, Mazzer Mini /Super Jolly burrs, Salvatore E-61 group machine, Aeropress, French press.


Mad Mac	#5 Posted on 11/12/2014 11:54 PM
1/4 Pounder Posts: 55 Joined: October 25, 2014	Are you certain you are just in 1C? Darker roasts tend to lose varietal notes quickly. They may be fruity after roasting and then gone in hours. Accurate photos of your roasts may assist us.


threwitallaway	#6 Posted on 11/13/2014 8:13 AM
1/4 Pounder Posts: 117 Joined: April 02, 2014	@ Mac, believe it or not, I do know the difference between 1st and 2nd crack. Nowhere near 2nd. These are lighter roasts 25-30?F before 2nd C. No, this is a problem that has something to do with very early development of the coffee I believe. thanks, nate __________________________________________ Hottop B-2K w barryR thermocouple mod, Mazzer Mini /Super Jolly burrs, Salvatore E-61 group machine, Aeropress, French press.


oldgearhead	#7 Posted on 11/13/2014 8:50 AM
1 1/2 Pounder Posts: 1128 Joined: February 10, 2011	As I recall there was a big difference between 2011 and 2012 crops of this coffee.The later was much flatter than the former. I looked up the GCBC cupping notes for the 2014 Pan Eldia crop and 'blueberry' wasn't noted. In past years this coffee was often called the "Blueberry Bomb". It got a pretty high score though. Dry aroma- 4.2 Peaches, cinnamon Wet Aroma- 4.1 Peach, Lime, fruit, cinnamon Flavor- 9.2 Peach, Cinnamon, Melon Acid- 7.9- Bright Body-7.5- Average Aftertaste/finish- 9.1 Slight earth note in the finish but maintains the flavors even when cool Chocolate does in as it cools. Total +50= 92


threwitallaway	#8 Posted on 11/13/2014 9:04 PM
1/4 Pounder Posts: 117 Joined: April 02, 2014	@oldgearhead, My Elida is giving more of a 'Tutti-Frutti" flavor than anything with the present roast style. I will try some experiments on the fruity coffees and see if I can prolong the fruit past 3 days post roast. -nate __________________________________________ Hottop B-2K w barryR thermocouple mod, Mazzer Mini /Super Jolly burrs, Salvatore E-61 group machine, Aeropress, French press.

Jump to Forum:

Similar Threads

Thread	Forum	Replies	Last Post
Coffee bloom and degassing	Storing Roasted Beans	7	08/07/2023 1:03 AM
Water and Coffee	Preparing Coffee	13	08/06/2023 6:10 PM
Problem with electric control Quest M6 Coffee Roaster	Quest M3 Roaster	27	06/20/2023 3:39 AM
Coffee Crafters Fluid Bed Coffee Roasters	JAVA TRADING COMPANY	2	05/24/2023 10:46 AM
How I rescue my ‘ruined’ coffee beans after Behmor Err7	Behmor 1600	10	04/27/2023 12:41 PM