Dorr Clarifier Operator

Minimum ITI or Diploma in Mechanical

Not required

The tasks a Dorr Clarifier Operator is expected to perform include:

Operating the clarifier which settles the mixture of juice, lime and super phosphate

Heating the mixture to determine the temperature for the clarifying juices

Boiling the mixture of juice and lime to the prescribed temperature in the sub-sider unit

Collecting samples of the juice in test tubes

Observing the tests against light to ascertain the clarity of the juice

Taking samples of the juice periodically to check the quality of clarification using BTB (Bromo ?Thymal Blue) paper

Manipulating the valves to let out the juice from the different compartments of the dorr and opening the bottom cocks

Checking the sample and ensuring that the mud level is not above the prescribed limit

Examining the consistency of the mud and regulating the draining from the various units

Draining out the mud from the sub-sider to the mud tank

Cleaning the mud deposited in the tank once in each shift

Applying heavy oil once every week over the surface of the juice so as to prevent the vapour from escaping

Ensuring the efficient working of the different compartments and components of the unit

Providing guidance to the evaporator

Skilled in taking readings of time, temperature, pressure and volume

Proficient in handling pressure and temperature gauges

Knowledge of food safety and handling procedures

Proficient in troubleshooting

Skilled at maintaining the equipment at the required temperature

Skilled in operating the clarifier machine

Knowledge of conducting tests to ascertain the clarity of juice used for sugar manufacturing

Knowledge of the specification used to check the mud levels, clarity, etc.

Not applicable




Attention to detail


It is not a desk job

Need not supervise a team

Local travelling is not a part of this job role

Part-time work and contractual jobs maybe available

Work from home option is not available

Working hours
Companies usually work for 6/7 days a week and 8/9 hours everyday. This may vary from company to company

Shift system maybe available

Is the job suitable for a candidate with special needs?

This job is not listed as hazardous or dangerous as per The Factories Act, 1948 (section 87)

For freshers - INR 6,000 to INR 7,000 per month

(These figures are indicative and subject to change)

The Food Industry in India

The Indian Brand Equity Foundation in their report on the food industry of India have referred to this industry as the highest profit incurring sector considering the scope it has to offer for value addition. In particular the food processing industry getting in India has been recognized as a high-priority area. This is because the food processing industry is one of the largest industries in India and is ranked fifth in terms of production, consumption, export and expected growth.

The latest figures have revealed that the total food production in India is likely to double in the next 10 years as the country?s domestic food market is estimated to reach US$ 258 billion by 2015.

Considering all the world data the Indian food and grocery market is the world?s sixth largest with its retail contributing 70 per cent of the sales. It is projected to grow at the rate of 104 per cent, touching US$ 482 billion by 2020. This indicates a vast scope for both investors and exporters.

India is the largest consumer of sugar in the world and consumes around 16 million tonnes of sugar per annum. The Indian sugar industry has a total turnover of INR 500 billion per annum and contributes almost INR 22.5 billion to the central and state exchequer as tax and excise duty every year according to the sources of Ministry of Food and Government of India.

Given all these figures it is safe to say that the demand for a Dorr Clarifier Operator is there in the present and will surely increase in the coming years.

Sugar manufacturing companies

Cities and towns across India