Blakeslee B-20, Owner'S Manual, Page: 12 / 37

Mixer Capacity
The mixer capacity chart is provided as a guide
for controlling the batch sizes. The capacities
listed take into account the amount of product
which can be contained in a particular size bowl
and the type of dough or product to be mixed and
it’s own unique properties which affect mixer
performance.
Also considered and noted on the chart is the
batch absorption rate, the ratio of the weight of
water to the weight of flour expressed as a
percentage. The absorption rate (AR) measures
how heavy a batch is or the density of the batch.
In fact, the capacities listed on the capacity chart
for the products listed below are based on the
following absorption rates:
Product
Bread dough
Pizza dough
Raised donut dough
Absorption Rate
60%
50%
65%
When mixing any of the above products with an
absorption rate lower than listed, the batch size
should be decreased proportionately to insure
efficient mixing of the product and eliminate the
possibility of over-loading your mixer. For
example: A DD-60 mixer has a pizza dough
capacity of 40 pounds at first speed based on AR
of 50% according to the capacity chart. If the
batch to be mixed has an AR of 45%, the batch
size must be reduced to compensate for the
difference. The size of the reduction is computed
as follows:
1. Divide the AR of the batch to be mixed by
the AR listed on the capacity chart.
45% Actual AR
50% Rated AR
2. Multiply the rated batch size by the
percentage obtained in step 1. The result
is the maximum batch size of the DD-60
mixer for pizza dough with a 40% AR.
Another factor often overlooked is the ability of
your mixer to operate at a higher speed. For
example, the F 30 has a 45 pound capacity of
bread or roll dough with an AR of 60% in first
speed. The batch could be mixed in second
speed but the batch must be reduced by 60% to
27 pounds.
Your Blakeslee mixer is designed and intended to
mix your products in the most efficient way
possible. There is no need for you to sacrifice
individual characteristics when using your
Blakeslee mixer. Care should be taken during
your batch mixing. When results are exactly to
your liking, note carefully the time of operation
and speed setting. Under the same conditions
your Blakeslee mixer will perform exactly the
same, day after day, providing uniformity of your
product. A word of caution: Do not over-mix.
Over mixing can adversely affect the texture of
the product you are mixing. You will also
discover there is often a savings in the time
required for each mixing operation, and that even
delicate products usually mixed by hand can be
adapted to your mixer.
40 Lbs Rated Batch size
X 90%
= 90%
36 lbs. Max Capacity @ 45% AR
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