Lời giải ĐỀ THI IELTS 17/09/2019

The flow chart illustrates the different stages in the process of producing soft cheese.

Overall, it is clear that the process consists of five stages, beginning with mixing water and milk and ending with the final product of soft cheese.

First, water and milk are mixed and the resulting mixture is cooled at 5⁰C for 2 hours. Salt is then added to the mixture in preparation for the next stage of fermentation. This fermentation stage involves heating the water and milk mixture for another 2 hours, this time at the higher temperature of 35⁰C.

The next stage is evaporation when, during the process of heating at 100⁰C for 8 hours, the mixture becomes thicker and steam is given off. Cooling is the final stage after evaporation.  Waste water is drained from the mixture, which then cools and thickens even more for a period of 16 hours at 5⁰C.  After filtering, soft cheese is produced.

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Written by NgocBach