The diagram describes how the factories produce  
yoghurt
.
Use synonyms
Overall
, Linking Words
to produce
 Change the verb form
producing
yoghurt
  takes 7 stages starting with boiling to transport to the stores.
Use synonyms
According to
 the diagram, the process of production starts with boiling  Linking Words
milk
 to 90C for 30 minutes. It is Use synonyms
lucid
 that if the pasteurization of Correct word choice
clear
milk
 takes  more than 30 min, it will become thicker Use synonyms
yoghurt
.
The next stage is cooling the Use synonyms
milk
 from 90C to 44C and it helps to add more items to Use synonyms
milk
. After that live bacteria cultures, which play an important role in the process, are added to the Use synonyms
milk
. It is interesting to note that the fourth stage of preparation of Use synonyms
yoghurt
 takes 4 hours. Use synonyms
After 
Linking Words
this
 process, Linking Words
yoghurt
 is put in the refrigerator to cool the product. Additional ingredients Use synonyms
such
 as sugar and fruits will be added to make Linking Words
a
 product better. In the final stage, the Correct article usage
the
yoghurt
 is poured Use synonyms
in
 special cups and Change preposition
into
is 
is sold for distribution.Unnecessary verb
apply