Posted Sat Jan 5, 2013, 4:29pm Subject: Destoning roasted coffee, help please
Hello everyone, I wanted to ask a questions about de stoning coffee. I just started roasting coffee and the beans I am buying may have foreign elements in them such as sticks and stones. I am using the behmor 1600 to roast from home.
I was thinking about de stoning and found an ingenious invention using pvc pip and a vaccum to levetate the coffee and thus the stones falling because gravity is taking the stones over the roasted coffee.
I was thinking this destone method is done my tumbling beans and gravity.
The Behmor 1600 tumbles the roasted beans to cool them down. Would this separate the stones from coffee? The drum the beans are roasted in is not fine mesh.
Is it worth making this domestic destoner? Could you just sift roasted coffee with a large mesh sifter? or does coffee have to be air born in order the nasties to fall?
"A good cup of coffee starts with a seedling." Snaggle.
Posted Sun Jan 6, 2013, 7:29am Subject: Re: Destoning roasted coffee, help please
Stones are a problem.
In my family I have 5 Baratza grinders and we have had (among us) 3 pebbles over the last 3 years. The result was that we stripped the plastic driven gear on the counter-shaft, with 2 weeks of down-time (to get parts and install). Fortunately, Baratza parts are reasonable, instructions are good and the worst part is getting the case open. Baratza grinders can be repaired at home.
One reason that I roast batches of 10 oz which yield a bit more than half a pound as roasted ...is that it is not so hard to scrutinize half a lb in a flat dish, for pebbles.
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