Job Description:

• 1) Controls vacuum pan sugar boilers to concentrate sugar liquor and grow sugar crystals to specified size: Starts vacuum pump, and opens valves to admit specified amounts of liquor and steam into vacuum pan, and water into condenser unit.

• 2) Observes boiling of liquor through sight glasses.

• 3) Adjusts valves to maintain specified temperatures and pressures and obtain supersaturated solution without carmelizing sugar.

• 4) Opens valve to shock solution with panseed and start formation of sugar crystals.

• 5) Obtains samples of solution, using proofstick, and observes grain size under microscope to determine when crystals have grown to specified size.

• 6) Opens pan-feed valve to control growth of crystals.

• 7) Samples solution to ensure that sugar crystals remain at specified sizes as pan fills.

• 8) Closes pan-feed valve when pan is filled and continues boiling until solution reaches specified concentration of sugar-crystals and massecuite.

• 9) Turns valves to stop boiling and to break vacuum seal on pan.

• 10) Turns valve to dump sugar into mixing tank or crystallizer.

• 11) Washes and steams pan after dumping strike to remove sugar remaining on coils or calandria.

• 12) Records strike on station log.

• 13) May be designated according to type of liquor boiled as Soft-Sugar Boiler; White-Sugar Boiler; or according to stage in process as High-Raw-Sugar Boiler; Remelt-Sugar Boiler.