Concentrated pineapple juice preparation method

The present invention discloses a concentrated pineapple juice preparation method, belonging to the field of food processing. The preparation method is characterized by comprising the following processing processes: selecting raw materials, cleaning the selected pineapples, cutting out the ends of the cleaned pineapples, peeling the end cut pineapples, juicing the peeled pineapples, filtering the pineapple juice, degassing the filtered pineapple juice, sterilizing the degassed pineapple juice, cooling the sterilized pineapple juice, concentrating the cooled pineapple juice, bottling the concentrated pineapple juice, and thereby obtaining the finished product. The beneficial effects of the concentrated pineapple juice are as follows: the concentrated pineapple juice is yellow, sweet, sour and tasty, is refreshing in taste, has a unique flavor of pineapples, is sweet as honey, is an excellent cooling and thirst-quenching product, is rich in multivitamins, can promote gastrointestinal digestion, has efficacies of eliminating summer-heat by cooling, promoting salivation and quenching thirst, and losing weight and beautifying features, is easy to be stored and convenient to be carried, and can be consumed all year round.