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  FAQs
 
   
Sugar Factories
 

How many sugar factories are operated by Parrys Sugar?

  Is it possible to visit sugar factories?
  What is an "Integrated Sugar Complex?"
 
Sugarcane Cultivation
  What is the time period taken to harvest sugarcane?
  What is the quantity of sugarcane grown by PSIL per hectare?
 
Sugarcane as Raw Material
 

What is the sugar content of sugarcane?

  Does sugar content in cane change with climate?
 

How is sugar content in cane determined?

  How much sugarcane is required to make one kilogram of sugar?
  Does sugar content of the cane fall if stored?
 
Sugarcane delivery
 

What is done with the soil and impurities delivered with the sugarcane?

  How are the sugarcane bundles delivered and how is transportation organized?
 
Sugar processing
a) Production
 

How does sugar attain its white color?

b) Energy
  What forms of energy does a sugar factory need?
  How much energy does a sugar factory need?
  Is heavy oil or gas required to produce steam?
  Is waste heat used as recycling?
  Is it possible to also obtain energy from the steam that is released into the open-air at a number of points during sugar manufacture?
  A sugar factory environment typically smells of fermentation. Why?
 
Sugar - Product Charecteristics
 

How long can sugar be stored?

 

Is fine sugar sweeter than coarse sugar?

 

Is sugar fattening?

 

Is brown sugar healthier than white?

 

What happens to the by-products or materials left over from sugar processing?

  What is raw sugar?
  Are there any non-food uses of sugar?
 

What is natural sugar?

 

What is Fructose?

 

What are different kinds of Sugar?

 

What is sugarcane syrup?

a) Sale of Sugar
 

Why is refined sugar more expensive than white sugar?

 

Where can I buy PSIL's Sugars?

 

I am Wholesaler – Can I buy sugar directly from PSIL?

 

What are the Industries that purchase Sugar?

b) Sugarbeet/Sugarcane
 

What is the difference between sugar produced from sugarbeet, sugarcane and raw sugar?

 

Is beet-sugar better than cane-sugar?

 

What is the sugar yield per hectare of beet and cane?

 
 
Sugar Factories
How many sugar factories are operated by PSIL?
Please see ‘Locations & Capacities’ link from the Home Page.
 
Is it possible to visit sugar factories?
Yes,it is possible to visit sugar factories. You may have to take a prior appointment with the administration.
 
What is an "Integrated Sugar Complex"?
A Factory where there are two other processes arising out of the main process of sugar manufacture. It produces co-generated power, rectified spirit and organic manure products. The features of an integrated sugar complex are: It is a zero-waste plant where all by-products generated are further processed into saleable final products. Molasses, bagasse and press mud, which are all by-products of the sugar manufacturing process, are converted into rectified spirit, power and organic manure products respectively.
 
Sugarcane Cultivation
What is the time period taken to harvest sugarcane?

It takes about 11-13 months to harvest sugarcane. Samples of cane are taken out to laboratory to determine sugar content and its maturity. Based on this a decision is taken whether the cane grown is fit for crushing.

What is the quantity of sugarcane grown per hectare?

Per Hectare about 70 Metric tones of sugarcane is grown.

 
Sugarcane as Raw Material
What is the sugar content of sugarcane?

The sugar content of sugarcane is 10-10.5 % on average. However the content can also vary depending on the variety planted, weather conditions and location.

 
Does sugar content in cane change with climate?

Yes, when hot temperature prevails the sucrose content goes down as the water content from the sugarcane dries down. This results in lesser sugar extracted from sugarcane yield per hectare.

 
How is sugar content in cane determined?

The sugar content and other important constituents are determined for each consignment of sugarcane in a special laboratory at the sugar factory. The other way of determining the content is by calculating the sugarcane crushed and comparing it with the production of Sugar.

 
How much sugarcane does it take to make one kilogram of sugar?

It takes about 100Kg sugarcane (approximately) to process a kilogram of sugar.

 

Does sugar content of the cane fall if stored?

Yes. Storage affects the Sucrose content in cane.

 
Sugarcane delivery
What is done with the soil and impurities delivered with the sugarcane?

After the crushing, what remains is the Filter cake,which is further processed to make a bio-fertilizer. Rich in nutrients, it is used to enrich the soil. The cane produced is thus returned to the fields

 
How are the sugarcane bundles delivered and how is transportation organized?

PSIL’s agri-support initiatives support the farming communities by arrangng the labor required while harvesting the sugarcane. The sugarcane is then transported to the Sankili Sugar Complex for crushing through different means (tractor, truck, bullock cart) depending on the distance and quantity.

 
Sugar processing
a) Production
How does sugar attain white color?

Sugar is actually colourless. All substances that might impart colour are removed during processing. Removal of impurity is usually done by adding lime and sulphur–di-oxide and in the process it attains white colour.

 
b) Energy
What forms of energy does a sugar factory need?

Thermal and electrical energy are needed to process sugar. Both forms of energy are obtained in a combined heat and power plant. Thermal energy is needed to turn the water into steam. Water is heated using waste heat flows to conserve energy.

 
How much energy does a sugar factory need?

The energy requirement of a sugar factory depends on the number of TCD processed per day. At Sankili for 5000 tonnes of sugarcanecrushed per day, the boiler will require about 28-30 units of energy per ton.

 
Is heavy oil or gas used to produce steam?

No.

 
Is waste heat used?

Thermal energy is generated in a sugar factory’s own combined heat and power plant. The utilization of the heat flows is subject to technical and economic limits.

 
Is it possible to also obtain energy from the steam that is released into the open air at a number of points during sugar manufacture?

There are waste gases mixed with a large amount of steam durng sugar manufacture. The temperature of the waste gases is less than 100 °C. The condensation temperature of steam is less than 70 °C. Significant amounts of thermal energy can only be recovered below this temperature. The technical cost of such a process would be very high. There are therefore technical and economic limits to the use of these heat flows.

 
A sugar factory environment typically smells of fermentation. Why?

The environment around a sugar factory contains traces of organic substances that are contained in the sugarcane itself or they are formed during processing. These substances cause fermentation odours.

 
Sugar - Product characteristics
.
How long can sugar be stored?

At 20 °C (± 5°C) and a relative air humidity of 65 %, sugar can be stored for virtually an unlimited period.

 
Is fine sugar sweeter than coarse sugar?

Fine and coarse sugar is equally sweet. It is possible that the larger surface area of fine sugar makes it seem sweeter when consumed.

 
Is sugar fattening?

Sugar is a carbohydrate containing only 4 kcal/g, as opposed to fat with 9 kcal/g and alcohol with 7 kcal/g. No single foodstuff is fattening on its own. The total number of calories is a crucial factor in fattening.

 
Is brown sugar healthier than white?

No. It is a common misconception that brown sugar is healthier than white. This misconception may have arisen a long time ago, when sugar was still whitened with bleaching agents or dyed with chemicals.

 
What happens to the by-products or materials left over from sugar processing?

There are three residues left out of sugar procesing - namely Molases, Baggase and Filter Cake. Baggase is burnt to generate steam, which in turn generates power. Molases is used to manufacture Alcohol and Rectified Spirit, ENA and Ethanol. Filter cake is further processed and used as fertilizer

 
What is raw sugar?

Raw sugar is a tan to brown, coarse granulated solid obtained on evaporation of clarified sugarcane juice. It is partially purified sugar, which is characterized by sucrose crystals covered with a film of molasses. Raw sugar is processed from the cane at sugar factory and usually further refined to produce white sugar for consumption. It contains about 98% sucrose.

 
Are there any non-food uses of sugar?

Sugar is also used in the fermentation process to produce alcohol for human consumption It is also used to produce industrial alcohol and other industrial chemicals. It is used as a retarding agent for cement and glues and also as a raw material in the manufacture of rigid polyurethane foams.

 
What is natural sugar?

Natural sugar is not a precise term. It is often used to mean naturally occurring sugar (which includes ordinary household sugar) and/or sugar that is as far as possible, left in its natural state (e.g. honey).

 
What is Fructose?

As its name indicates, fructose occurs in fruits and can also be metabolized by diabetics independently of insulin. Fructose is especially suitable to further sweeten fruits, cold desserts and cold fruit drinks. Fructose is sweeter than sugar (sucrose) when used in this way, but it displays different properties from sugar when heated.

 
What are different kinds of Sugar?
Term   Description
Brown Sugar  

Also called Golden Yellow Sugar or Brilliant Yellow Sugar

Burnt  

Also called Caramelized Sugar

Castor Sugar   A vairiety of sugar sold in parts of Europe and Australia
Coarse Sugar   Also called Confectioners' Sugar
Demerara-style  

Moist granulated sugar having a heavy molasses coating

Granulated Sugar   White Coarse Sugar, Sanding Sugar, Medium White Granulated Sugar, Fine White Granulated Sugar, Extra Fine Sugar (or Special Fine Sugar), Superfine Sugar (or Fruit Sugar, Fruit Powder, Powdered Sugar, Instant Dissolving Sugar)
 
 
What is sugar-cane syrup?

It is produced by pressing or steaming and pressing fresh sugar beet. The resulting juice is evaporated to leave a dry substance and is purified using filtering agents.

 
a) Sale of Sugar
Why is refined sugar more expensive than white sugar?

Sugar in its raw form is a premium sugar made from natural cane. Worldwide, there are few cane growing locations and manufacturing facilities devoted to producing high quality sugar hence the supply of premium sugar is much more limited than the supply of white sugar. As a result, premium sugar costs more than white sugar. Moreover manufacturing also results in additional facilities like steam generation units and increases the Manufacturing cost.

 
Where can I buy PSIL's Sugars?

PSIL's branded sugar can be bought directly from the factory or from the traders who buy the sugar from us.

 
I am Wholesaler – Can I buy sugar directly from PSIL?

Yes. You can buy provided you have a Trading License.

 
What are the Industries which procure sugar?

Confectioneries, beverages, biscuits, dairy products, preserved food, baking, chemicals and        pharmaceuticals

 
b) Sugarbeet/Sugarcane
What is the difference between sugar produced from sugarbeet, sugarcane and raw sugar?

Beet sugar is processed from sugarbeet and cane sugar from sugarcane. Raw sugar usually means brown sugar, which still contains extra components retained from the sugarbeet or sugarcane.

 
Is beet-sugar better than cane-sugar?

There is no difference between white crystal sugar that is produced from sugarbeet or sugarcane

 
What is the sugar yield per hectare of beet and cane?

An area under cultivation of one hectare yields sufficient sugarcane to produce 7 tonnes of sugar in Sankili. The sugar yield of sugarbeet is of the same order. However, yields vary considerably from country to country and year to year, both in case of sugarbeet and of sugarcane.

 
 
 
 
 
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