The diagram clearly illustrates the step-by-step chemical as well as thermal process of yielding yogurt which is mostly dependent on milk as the original and mail ingredient.
Overall, it is obvious that making yogurt is relatively a simple process by which raw materials are heated up at varying temperatures, mixed up together and eventually packaged up to be sold.
Initially, 4 ingredients including stabilizers, dry milk and sugar are mixed in hygienic stainless-steel vessel, already filled up by milk, and heated to 85 degrees celsius,a process so-labeled: ‘pasteurization step’. Then, in ‘homogenization step’ the product is cooled radically down to 42 degrees celsius.
Obviously, the process continues by adding cultures, stirring the mixture and cooling down. After the blend temperature decreases to 7 degrees celsius by which ‘fermentation stage’ gets completed. Consequently, once previous stages are completed, in the ‘packaging phase’, the produced yogurt product is packaged into individual containers to be sold.
By: Mahtab