The invention discloses fresh and wet sweet potato vermicelli and a preparation method thereof, the fresh and wet sweet potato vermicelli comprises the
processing raw materials of sweet
potato starch, domestic drinking water, an
acidity regulator and a fresh-keeping
preservative, the usage amount of the fresh-keeping
preservative is 0.05-0.6% of the weight of the
starch raw material, and the preparation method comprises the following steps: weighing the raw materials of the fresh and wet vermicelli, preparing starchy sauce, preparing dough, mixing
slurry, curing and forming, and the like, thereby obtaining the fresh and wet sweet potato vermicelli. Aging the cured vermicelli for 1-2.5 hours in an environment of 10-1 DEG C, so as to obtain aged vermicelli; and
cutting the aged vermicelli into strips, performing vacuum packaging, and performing
pasteurization to obtain the product. In the preparation process of the fresh and wet sweet potato vermicelli,
potassium cinnamate,
thymol and
aloe extract are added as fresh-keeping preservatives. The method overcomes the problem that
chemical preservatives such as
sodium dehydroacetate cannot be added into the fresh and wet sweet potato vermicelli, and prolongs the
shelf life of the fresh and wet sweet potato vermicelli.