BIDELI BD-06WT/NT, Instruction Manual, Page: 18 / 22

5.Many different ways of roasting,low temperature roasting,high temperature
roasting,the second roasting(Same batch,same beans) ,all of them are up to
the operators.
Such as: Roasting from low to high temperature environment ,this kind way of
roasting.
When the preheated temperature down to150
℃
, dump the
green beans into drum,adjust the power into half,starting
the low temperature roasting,almost 7-10 minutes to
evaporate the moisture in the green beans slowly and
fully. When you observe the color of beans changed,turn up
the power to rise temperature soon.
(This machine quite works,only can hear the sound of the
beans touch the drum)
when you hear the first crack,observe the beans
’
color
through the glass,and take out the beans by samplers to
observe
(If you also find there are same chaff and smoke
out from the sample hole,you need to turn up the exhaust
air flow to control that issue)
,after finishing the first crack,
turn down the power to reduce the speed of rise temperature,
making the beans finish the second crack completely. Then
open the cooling air flow,make sure it is fully open,adjust the
exhaust air flow at 1 scale,turn on the cooling tray arms,
let the roasted beans out,within 3-5minutes cooling,one batch
is done.
6.During the cooling process,you can dump another batch green
beans into the next roasting,just like before what you did to roasting
consecutively.After first roasting,the temperature is high in the drum,the next
roasting process will be finished in the shorter time than first batch.
7.If you keep roasting into 24KG green beans,please turn off the
chaff collector cyclone switch,clean the drawer and put it back
where is should be,then keep enjoy roasting process.
8.If you wanna finish roasting,please
DO NOT turn off the main power
of the roasting machine firstly .For the electric type one,firstly turn off
the heating switch,for Gas type one,firstly turn off the gas open
switch,after the temperature down to 80
℃
,then turn off the power
which is back of the back of the electric cabinet.Then do the clean
job to prepare for next roasting when you want.
P18