Duke PFB PROOFER BASE 설치, 작동, 부품 및 서비스 매뉴얼 - 페이지 3
{카테고리_이름} Duke PFB PROOFER BASE에 대한 설치, 작동, 부품 및 서비스 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Duke PFB PROOFER BASE 11 페이지.
페이지 인쇄Specifications
Power to the proofer base is supplied through a nine foot
(9') power cord, 3-wire, 14 gauge, equipped with a
NEMA 5-15 CAP grounded plug.
The master on/off switch connects to the axial fan,
thermometer transformer, (120v primary/12v secondary)
and to the controller, which has a temperature range from
85" - 165°F.
The controller provides power to the air heat element
(10-<5 watts), and to the proofer ready light. A second
(500 watt) element used to regulate humidity in the
cabinet is controlled by an infinite switch. (The humidity
element will come on only when the air heat element is
on.) The humidity element heats a pan of water in the
bottom of the oven producing steam vapor.
A sixty minute timer controls the timed proof cycle, and
connects power to a buzzer indicating the end of the cycle.
There are two probes within the proofer cavity. One is
connected to the controller to sense oven temperature.
The second probe is connected to the digital thermometer
to indicate oven temperature.
The axial fan located in the bottom of the oven circulates
heated air throughout the cavity. The fan runs
continuously when the main on/off switch is turned on.
Opening or closing the door has no effect on the heat or
fan controls.
General Proofing Information
Today many bakers use frozen dough products in their
operations. Frozen doughs are ready for traying, thawing,
proofing (if required), baking and finishing. The baker
bypasses mixing, dividing, make-up and fermentation
time.
Handling Frozen Dough
Frozen dough must be kept at a temperature of -10°F with
minimal fluctuations to prevent product damage. Be sure
to rotate your inventory so that the first product stocked is
the first product to be used.
Frozen dough is affected by three factors: Time,
temperature and humidity. Time and temperature
are easily controlled with properly maintained
equipment. Correct proofer humidity control can only
be maintained with a balance between temperature
and humidity settings.
Retarder Principles
Retarders provide a location for the frozen dough to thaw
slowly, until it reaches a state of even temperature
throughout the dough piece. Retarders protect the dough
from the unequal thawing caused by excessively warm
locations. The best retarders are designed to promote a
controlled, cool, slightly moist environment. To eliminate
moisture loss and crusting it is often still appropriate to
cover the entire pan of trayed product with a heavy plastic
bag.
NOTE: Condensation can cause thin, close fitting plastic
bags (like trash bags) to stick to the dough. This often
creates damaged surfaces when the plastic is pulled free.
Baking supply houses carry zippered "elephant bags"
specifically for the retarding process.
By keeping the dough between 33° - 40°F the yeast
activity in the dough is minimal, yet limited fermentation
does occur improving product flavor and dough handling
characteristics. Doughs held in the retarder for over 48
hours often will develop strong "sour" aromas and
flavors, and if baked, will result in inferior crumb texture
and shelf life. Follow and understand the practices
outlined on the following pages when retarding your
frozen product:
1. Maintain temperature between 33" - 40°F
2. Avoid formation of crust or skin on dough pieces
3. Retard 12-16 hours (overnight)
4. Do not over-retard product (sour product)
5. Longer retards will require shorter proof times.
6. Fermentation begins
Proofer Operation
For the best results in a frozen dough operation, a relative
humidity of 70% - 75% is desirable, with a temperature
between 90° - 110°F. The humidity and temperatures
settings will vary depending on the strength and kind of
dough to be proofed.
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