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ELECTRO FREEZE Model FM8
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11
Soft Serve Information
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11.1
Overrun
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As mix is frozen in the freezing cylinder,
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air is incorporated into the mix to in-
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crease its volume, as well as enhance
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the taste and texture of the finished
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product. The increase in volume is called
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overrun. Fifty percent overrun translates
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to a volume increase of 50% — 30 liters
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of liquid mix has become 45 liters of
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finished product.
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Controlled overrun is important to
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maintain consistency in product quality.
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Too much overrun (air) results in a light,
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fluffy product lacking the cold refreshing
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appeal of a quality product. Too little
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overrun results in a wet, heavy product.
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To correctly measure the overrun per-
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form the following steps:
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the scale* and adjust your scale to zero.
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fill the container with liquid mix to the
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top. Weigh and record.
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11.2 Rerun
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If local health codes permit the use of
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rerun make sure to follow these proce-
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dures:
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sanitized container.
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ture below 4.4
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rerun. Always skim off and discard
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foam. Then combine the rerun with
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fresh mix in a ratio of 50/50 and add to
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the hopper during operation.
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as possible and discard after closing.
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This will break the rerun cycle and
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reduce the possibility of high bacteria
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and coliform counts.
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184979-17
1. Place an empty liter container on
2. Remove container from scale and
1. Store rerun mix in a clean,
2. Store in a cooler with a tempera-
º
C.
3. DO NOT prime the machine with
4. Once a week run the mix as low
3. Replace liquid mix with frozen
product, being sure to leave no voids or
air spaces in the container.
4. Strike off the excess product so it
is even with the top of the container and
measure the weigh.
5. Use the following formula to figure
overrun percentage:
"Weight of liquid mix minus weight of
frozen product/divided by the frozen
weight. Multiply by 100." See example.
Example:
Weight of ½ liter of liquid mix
Weight of ½ liter frozen product = 340 g
Difference
170g divided by 340 g
.5 x 100 = 50% overrun
*Your Electro Freeze Distributor can
provide a scale (P/N 158049) that is
graduated in overrun percentage.
NOTE: Rerun product is unable to
accept the same amount of air as fresh
product. As a result, the quality will be
affected and product may appear grainy
and icy.
For further information contact your
local Electro Freeze distributor or the
Service Department of H. C. Duke &
Son, Inc., phone (309) 755-4553.
= 510 g
= 170 g
= .5
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