Chopin CD1 Mode D'emploi page 42

GB
Laboratory Mill CD1
process, by vibrating the sifter material with the beater.
The beater blades look like fan blades or the pitch of plane
propellers. The position relating to the product motion axis and to
the rotation direction speed up or slow down the air flow rate and
the product transfer velocity (thus, influencing the extraction ratio).
3.5 Flour mixtures
Break and reduction flours are regrouped in order to give a fair
representation of the flour milled. The quality of the alveograph
results depends - among other factors - on the homogeneity of the
test sample. The rheologic qualities of break and reduction flours
are very different. This is why the flour sample - whether from an
industrial or laboratory will - must be mixed with great care.
Homogenizing by sifting with an open sifter (n° 28, for example),
spreading and mixing the product by hand in several stages
requires much care and time. This is not an easy method.
We advise using a ROTARY MIXER equipped with a special screw
for homogenizing purposes. This is the same mixer which served us
well for conditioning the wheat (refer to the special brochure).
All other conditions being equal, the rheologic characteristics of
flour change with time. This change is mostly noticeable during the
10 days which follow the milling. Consequently, the time interval
between milling and the alveograph test is very important and
definite time limits should be set.
We advise carrying out the test from 2-12 hours after milling.
Instruction manual
42
02/2017