Tuesday, March 29, 2011

Chaff Collection

Chaff Collection

While the Koffee Kosmo Roaster is agitating and roasting coffee beans 
  • During the first and second crack phase the bean husk as chaff  is shed off while roasting 
  • Once the husk separates from the beans, the chaff is forced to the outer chamber for clean, safe collection
  • Roasted beans in the roast chamber do not come contact again with the chaff during the roasting process
  • Approximately 98% of chaff is efficiently caught 



The roasting beans do not come into contact again during the roasting process once the husk separates from the bean

In the photo above


After the TO & roasted bean  insert is taken off

  • You can see how chaff is collected in the outer roasting chamber floor
  • We are left with 98% of collected chaff around the drive shaft as its final resting place
  • Once the roaster has cooled, the chaff is ready to be disposed of in the garden or bin
  • As seen - Great chaff separating results

 Clean roasted coffee beans are the result 




To purchase your Koffee Kosmo Roaster
  • Fully Assembled
  • Or in kit form 
  • Please visit the Koffee Kosmo Shop 
  • On This Link > Shop @ Koffee Kosmo 

Regards
Koffee Kosmo

Saturday, February 12, 2011

Top 5 Questions Asked about the KKTO

Top 5  Questions Asked
You will find these and many other answers on the the FAQ tab on the Koffee Kosmo web site
http://koffeekosmo.com.au/

Q. How long does it take to assemble the Koffee Kosmo kit roaster
A. Not long at all. Its so easy, you can be roasting in less than 45 min

Q. Explain how the roaster agitates the beans?
A. I have  spent countless hours fine tuning the agitator to have a complete mixing action rather than to push a mass of coffee beans around the roasting bowl
The main purpose of the agitator shape is to mix the beans in a specific way that is to move the beans from the centre out and back to the centre again
The action also cycles the beans from top to bottom in a helix pattern while also allowing the beans some intermittent rest time.



Q. What is the capacity of the Koffee Kosmo Roaster?
A. 300 grams to 700 grams of green beans . However the sweet spot is 500 grams to 650 grams.
Advanced users can roast up to 800 grams of green beans, dependant on the wattage of the Turbo Oven and the users familiarity of the roaster.
Smaller roasts under 300 grams are also possible with a little tweak to the agitator 

Q. Does the chaff separate from the roasted beans?
A. Yes approximately 98% of the chaff is redirected by fan force to the outer liner
The chaff collected in the outer chamber separate from the roasting beans until you dispose of them


Q. Can I expect to get professional roaster quality roast?
A. Yes its been proven by many users and testers that the home roast results are equal to store purchased beans

Have a look at a Koffee Kosmo Roast below.


Did You Know?


Coffee Roasting Facts

Fact 1: Coffee “shrinks”; it loses weight up to 20% during roasting, while swelling up to three times the original green bean size.
Fact 2: The longer you roast coffee beans, the darker the colour and the higher the “shrinkage”, e.g.…, the more green coffee it takes to make a roasted kilo.
Fact 3: Normal shrinkage is 20%; on darker roasts shrinkage goes as high as 25%. Lightly roasted coffees can have shrinkage factors as low as 11%.
Fact 4: Coffee that is light roasted as a general rule is best for pour-over brew methods e.g. French Press, Siphon, Vacuum brewers.
Fact 5: Under-roasted coffee has a flat, green, grassy astringent flavour. Over-roasted tastes burned or “caramelised” and the variable flavours of the coffee are lost in the dominant taste of the roast.

The easiest thing to do is throw the book out and - “Please, please... just roast.”
Roast too dark, roast too light, try them both then roast just right!

Cataloguing and making your own library of roast profiles of what works for you on your Koffee Kosmo Roaster for your own taste is by far the best bet.

If you have a specific question that has not been covered here please don't hesitate to contact us

To browse or to purchase a Kit Coffee Roaster please visit the Koffee Kosmo web site