I think adding enough steel to store sufficient heat to significantly =
speed up the preheat process will slow down the roasting stages.
Not only would the steel balls be really hard on the beans, they
could be rough on the drum too. They would be pretty loud even if
they did not dent the drum too badly.
On Feb 4, 2007, at 12:40 PM, Irene and Lubos Palounek wrote:
I think adding enough steel =
to store sufficient heat to significantly speed up the preheat process =
will slow down the roasting stages.
Not only would the steel =
balls be really hard on the beans, they could be rough on the drum too. =
They would be pretty loud even if they did not dent the drum too =
On Feb 4, 2007, at =
12:40 PM, Irene and Lubos Palounek wrote:
reading the clipping (attached below) at the http://www.roastmagazine.com/backissues/mayjune2005/rulingtheroast.=html site, I realized that such a =
steep curve at the beginning of the roasting profile may be difficult to =
achieve in a home roaster such as the KN-8828P Programmable HotTop, =
where the heat is provided by electricity.
Is the following idea of adding additional heat =
energy at the beginning of the roast just a crazy idea, or is it an idea =
worth trying? I will welcome any insights, =
thoughts or advice.
At the =
beginning of roasting, during the “preheat” part of the process, put =
into the drum some steel balls, about the size of the coffee beans. Use about 30% of the total load by volume. =
Let the drum and the steel balls =
reach temperature about 10% higher then the desired temperature during =
the first part of roasting itself. When the temperature mentioned above is reached, add the =
green coffee beans; about 170g that is 70% of the “normal” weight, =
and lower the desired temperature to the “real” desired =
temperature. The idea is simple: the heat =
energy stored in the steel balls will allow the coffee beans to reach =
the desired temperature faster. The rest of the “roasting profile” is not changed. =
After the beans (and steel balls) are =
ejected from the drum, use a strong magnet to remove the steel =
basic idea may by adjusted as needed.
Please tell me: is that =
just a “crazy idea”, or is it something to try, or is it perhaps =
something to simply avoid for some reason I missed?
Thanks for your =