Sweet potato-based milk replacer is a nutritious and easily digestible alternative to traditional milk, especially suitable for the elderly and young children. This product is made from sweet potato, which is rich in natural sugars and water-soluble nutrients. The preparation process begins by washing and slicing fresh sweet potatoes into thin pieces, then blending them into a smooth pulp. The moisture content of the pulp is around 60%, ensuring it's neither too wet nor too dry. This pulp is then thoroughly mixed in a blender to separate the proteins and sugars. After mixing, the slurry is filtered to remove any impurities or solid residues. The resulting liquid is heated to 110°C and then spray-dried using a centrifugal spray dryer, producing a fine powder that can be used as a sweet potato-based milk substitute.
In addition to the milk replacer, sweet potato chips are also a popular snack, known for their crispy texture and natural sweetness. To prepare them, first wash and peel fresh sweet potatoes, then cut them into slices about 1.5 to 2 cm thick. Soak the slices in clean water for 10 to 15 minutes to remove excess starch, then rinse and dry them under the sun or in a dryer. When frying, heat sand in a pan until it reaches 85°C, then add the dried potato slices and stir continuously. Cook for approximately 15 minutes, then sieve out the sand and let the partially cooked chips rest for about 10 minutes to reabsorb some moisture. Finally, return the chips to the hot sand at 97°C until they puff up and become perfectly crispy.
This method ensures a delicious, crunchy snack with a unique flavor, making it a favorite among many. Both the sweet potato milk replacer and the crispy chips highlight the versatility and nutritional value of sweet potatoes, offering healthy and tasty alternatives for different dietary needs.
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