A professional who tends equipment that cools preserves and fruit concentrate. Respnsibilities include:

• Turns valve to admit water into jacket of cooling pan to cool preserves and fruit concentrate.
• Skims foam from top of preserves, using ladle.
• Stirs preserves or fruit concentrate with paddle to prevent coagulation and to allow even cooling.
• Observes thickening and starts pump, or opens dump valve, to transfer preserves or fruit concentrate from cooling pan to holding tank or filling machine when desired consistency is reached.
• May determine sugar content of preserves or fruit concentrate, using refractometer, and record results.
• May add sugar or water to preserves or fruit concentrate, according to formula, to bring sugar content up to standard.
• May start fan above cooling pan to aid cooling.