What it pays
Government survey numbers — not estimates, not ads.
Half of all Cooling and Freezing Equipment Operators and Tenders in the U.S. earn more than $41,330 a year — the middle 80% land between $33,430 and $62,340. About 6,900 people in the U.S. do this work. Figures are for the U.S. occupation group “Cooling and Freezing Equipment Operators and Tenders”. (U.S. Bureau of Labor Statistics survey, published 2025.) In India, Plant and machine operators and assemblers earn about ₹17,329 a month on average — around ₹2.1 lakh a year (government PLFS survey via ILOSTAT, occupation-family figure).
$41,330typical pay / year
6,900people in this work
$62,340+top 10% earn
₹2.1 lakha year in India (family avg)
Think you get this job?Six quick questions on how it really works — with a hint and the reason behind every answer.
Test yourself →The work, task by task
These are the real jobs-to-be-done, not a wish list. Each task shows where we found it, and the prompt underneath is written for that exact task.
Care4
Maintain and monitor cooling systems
+Check the walk-in and blast chiller temperatures twice this shift, note any fluctuation outside -2 to 0°C,…
Maintain and monitor cooling systems
+Check the walk-in and blast chiller temperatures twice this shift, note any fluctuation outside -2 to 0°C, top up coolant levels if low, log readings in the daily control sheet and alert production manager Sam if alarms recur before end of shift.
The tools that do the workMicrosoft Exceljob descriptionsO*NETWikipedia
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Operate cooling and freezing equipment
+Run the freezer start-up checklist, confirm compressor load, target product core at -5°C within the cycle,…
Operate cooling and freezing equipment
+Run the freezer start-up checklist, confirm compressor load, target product core at -5°C within the cycle, record run times and batch ID, and call maintenance lead Gina immediately if cycle fails to reach target by the set time.
The tools that do the workMicrosoft Wordjob descriptionsO*NETWikipedia
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Operate pumping systems or equipment
+Prime and test the product transfer pump before the first batch, check seals and pressure gauge to normal…
Operate pumping systems or equipment
+Prime and test the product transfer pump before the first batch, check seals and pressure gauge to normal range, clear any blockages, document pump run-hours in the maintenance log and notify shift supervisor Marco if flow remains inconsistent.
The tools that do the workMicrosoft Exceljob descriptionsWikipedia
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Load materials into production equipment
+Load the hopper with measured milk and mix according to batch sheet, confirm ingredient weights match the…
Load materials into production equipment
+Load the hopper with measured milk and mix according to batch sheet, confirm ingredient weights match the recipe, secure lid and conveyor feed, write batch number and operator initials on the production board and start the production cycle.
The tools that do the workMicrosoft Wordjob descriptionsO*NET
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Fixing1
Correct machinery malfunctions
+If a machine stalls, run the local fault checklist: isolate power, clear visible jams, reset safety…
Correct machinery malfunctions
+If a machine stalls, run the local fault checklist: isolate power, clear visible jams, reset safety interlocks, attempt a controlled restart; if fault persists, log the fault code, tag the machine out and page maintenance technician Aaron.
The tools that do the workMicrosoft Wordjob descriptionsO*NET
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Keeping the record1
Record operational or production data
+After each production run, complete the production sheet with batch number, weights, yield, downtime and any…
Record operational or production data
+After each production run, complete the production sheet with batch number, weights, yield, downtime and any deviations, save the sheet to the shift folder and email the summary to operations lead Priya before you leave.
The tools that do the workGoogle GmailMicrosoft Exceljob descriptionsO*NET
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The daily work15
Assemble equipment, and attach pipes, fittings, or valves, using hand tools.
+Assemble the freezer feed assembly: mount the mixer shaft, attach the inlet and outlet pipes with the correct…
Assemble equipment, and attach pipes, fittings, or valves, using hand tools.
+Assemble the freezer feed assembly: mount the mixer shaft, attach the inlet and outlet pipes with the correct fittings and clamp nuts, thread the safety relief valve, torque to spec and check for alignment before sealing.
The tools that do the workMicrosoft WordO*NET
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Inspect and flush lines with solutions or steam, and spray equipment with sterilizing solutions.
+Inspect the product and service lines, flush each run with caustic solution then steam for two minutes, spray…
Inspect and flush lines with solutions or steam, and spray equipment with sterilizing solutions.
+Inspect the product and service lines, flush each run with caustic solution then steam for two minutes, spray all exposed fittings with the approved steriliser and record temperature and contact time before releasing the line back to production.
The tools that do the workMicrosoft ExcelO*NET
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Sample and test product characteristics such as specific gravity, acidity, and sugar content, using hydrometers, pH meters, or refractometers.
+Take a 100 ml sample from the batch, measure specific gravity with the hydrometer, check pH on the meter and…
Sample and test product characteristics such as specific gravity, acidity, and sugar content, using hydrometers, pH meters, or refractometers.
+Take a 100 ml sample from the batch, measure specific gravity with the hydrometer, check pH on the meter and read sugar percentage on the refractometer, note values against batch 3247 and flag any out-of-spec results for QC review.
The tools that do the workMicrosoft ExcelO*NET
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Stir material with spoons or paddles to mix ingredients or allow even cooling and prevent coagulation.
+Stir the mix in vat C with the paddle until homogenous, scraping the walls every two minutes to prevent…
Stir material with spoons or paddles to mix ingredients or allow even cooling and prevent coagulation.
+Stir the mix in vat C with the paddle until homogenous, scraping the walls every two minutes to prevent coagulation, monitor temperature drop and stop when mixture reaches 4°C for transfer to ageing tanks.
The tools that do the workMicrosoft WordO*NET
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Activate mechanical rakes to regulate flow of ice from storage bins to vats.
+Start the mechanical rake on storage bin 2, set speed to the recommended 12 rpm, observe flow into vat B for…
Activate mechanical rakes to regulate flow of ice from storage bins to vats.
+Start the mechanical rake on storage bin 2, set speed to the recommended 12 rpm, observe flow into vat B for three minutes, adjust rake pitch if bridging occurs and log the run time and any manual interventions.
The tools that do the workGoogle GmailO*NET
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Clear equipment jams
+Clear the jam in conveyor line 1: shut the feed, lock out power, manually remove the ice bridge and trapped…
Clear equipment jams
+Clear the jam in conveyor line 1: shut the feed, lock out power, manually remove the ice bridge and trapped skids, inspect blades for damage, restart under observation and record corrective actions and downtime minutes.
The tools that do the workMicrosoft Wordjob descriptions
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Use vortex tubes for industrial spot cooling
+Set up the vortex tube station in the back room, direct the cooling jets onto the compressor housing during…
Use vortex tubes for industrial spot cooling
+Set up the vortex tube station in the back room, direct the cooling jets onto the compressor housing during the 2pm batch changeover, record inlet/outlet temps and run times, and stop the line if temps rise above safe limits.
The tools that do the workMicrosoft ExcelWikipedia
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Implement radiative cooling in heat shields
+Fit the radiative shield panels over the ageing freezer doors before the morning shift, check panel alignment…
Implement radiative cooling in heat shields
+Fit the radiative shield panels over the ageing freezer doors before the morning shift, check panel alignment and reflective faces, note any gaps or pinholes, and file the inspection note so maintenance can order replacements if reflectivity is compromised.
The tools that do the workMicrosoft WordWikipedia
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Support computer cooling systems
+During the afternoon service window, remove the case covers, clean dust from CPU and fan housings, apply…
Support computer cooling systems
+During the afternoon service window, remove the case covers, clean dust from CPU and fan housings, apply thermal compound to the hottest chips if temperatures exceed safe limits, then run a 15-minute load to confirm cooling is restored and log results.
The tools that do the workMicrosoft ExcelWikipedia
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Cut candies manually or mechanically
+Set up the cutting bench for the 4pm candy run, choose hand or mechanical cutter based on the batch size, cut…
Cut candies manually or mechanically
+Set up the cutting bench for the 4pm candy run, choose hand or mechanical cutter based on the batch size, cut a tolerance sample to weight and dimensions, adjust guards or blade spacing, and sign off the batch only when samples meet spec.
The tools that do the workMicrosoft WordESCO
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Measure ingredients or substances
+Weigh and record 50 kg skim milk, 8 kg sugar, 5 kg stabiliser, and 2 kg vanilla extract on the floor scale,…
Measure ingredients or substances
+Weigh and record 50 kg skim milk, 8 kg sugar, 5 kg stabiliser, and 2 kg vanilla extract on the floor scale, follow the factory batching sheet, note any deviations, and label the containers with batch number before mixing starts this morning.
The tools that do the workMicrosoft Exceljob descriptions
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Lower temperature of items or environments
+Reduce blast freezer setpoint from minus 24°C to minus 30°C for the overnight batch, confirm product core…
Lower temperature of items or environments
+Reduce blast freezer setpoint from minus 24°C to minus 30°C for the overnight batch, confirm product core reaches minus 18°C within three hours, record temperatures every 30 minutes and escalate to maintenance if the compressor cycles abnormally.
The tools that do the workMicrosoft ExcelWikipedia
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Utilize thermoelectric cooling devices
+Install the thermoelectric chiller plate under the gelato display, secure electrical connections, run a…
Utilize thermoelectric cooling devices
+Install the thermoelectric chiller plate under the gelato display, secure electrical connections, run a one-hour cool-down test to verify surface holds 2°C, note any hotspots on the overlay map and clean the drains afterward.
The tools that do the workMicrosoft WordWikipedia
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Transfer thermal energy via radiation, conduction, or convection
+Rotate the circulating fan speed to medium, check condenser fins for dust, open the damper to increase…
Transfer thermal energy via radiation, conduction, or convection
+Rotate the circulating fan speed to medium, check condenser fins for dust, open the damper to increase airflow by 20 percent, monitor evaporator temp until it stabilises at target, and record adjustments in the shift log.
The tools that do the workMicrosoft ExcelWikipedia
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Manage HVAC systems for temperature control
+Update the production HVAC schedule to engage low-temp mode at 02:00, verify zoning dampers close in the…
Manage HVAC systems for temperature control
+Update the production HVAC schedule to engage low-temp mode at 02:00, verify zoning dampers close in the packing area, confirm the unit cycles deliver consistent minus 20°C to storage, and email the shift supervisor the log if any alarms occur.
The tools that do the workGoogle GmailWikipedia
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Built on public evidence: O*NET®, ESCO, Wikipedia, U.S. Bureau of Labor Statistics, ILOSTAT. All sources & licenses