t3miml
Jul 26, 2021
Writing Feedback / IELTS Task 1: Process- Sugar production from the sugar cane. [5]
The graph illustrates the process through which sugar is produced from sugar cane.
Overall, after being cultivated for one year to one and a half years, sugar canes are harvested by hand or machine, removed all the leaves to become the raw material which is the main input of a five-step procedure of extracting and purifying sugar.
To obtain the juice rich in sugar, a crushing machine is used to drain the liquid from the fibre structure of sugar canes, leaving the dry solid waste. The juice is then cleaned by a limestone filter which removes the remaining solid pieces and other impurities. After these two procedures, a purified sugar juice is produced.
The purified sugar liquid is then evaporated by heat to eliminate a partial amount of water. The major purpose of this step is to obtain a syrup containing sugar at a smaller concentration, which is crucial for sugar crystallization in the following steps. To yield the partition of sugar crystals from the semi-liquid part, a centrifuge is used, separates solid and liquid parts due to the centrifugal force at high spinning speed and the density difference. In the last step, sugar crystals are placed in a container to be cooled down and dry and become the finished product of the whole manufacturing process.
Sweet carbohydrates
The graph illustrates the process through which sugar is produced from sugar cane.
Overall, after being cultivated for one year to one and a half years, sugar canes are harvested by hand or machine, removed all the leaves to become the raw material which is the main input of a five-step procedure of extracting and purifying sugar.
To obtain the juice rich in sugar, a crushing machine is used to drain the liquid from the fibre structure of sugar canes, leaving the dry solid waste. The juice is then cleaned by a limestone filter which removes the remaining solid pieces and other impurities. After these two procedures, a purified sugar juice is produced.
The purified sugar liquid is then evaporated by heat to eliminate a partial amount of water. The major purpose of this step is to obtain a syrup containing sugar at a smaller concentration, which is crucial for sugar crystallization in the following steps. To yield the partition of sugar crystals from the semi-liquid part, a centrifuge is used, separates solid and liquid parts due to the centrifugal force at high spinning speed and the density difference. In the last step, sugar crystals are placed in a container to be cooled down and dry and become the finished product of the whole manufacturing process.
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