Instant crispy and tasty fresh-keeping vegetable and preparation method thereof

The invention discloses an instant crispy and tasty fresh-keeping vegetable and a preparation method thereof. The preparation method mainly comprises the following steps: (1) cleaning, blanching and calcifying a fresh vegetable to obtain a vegetable base material; (2) weighing the vegetable base material in a formula ratio and adding a proper amount of seasoner into the vegetable base material, and uniformly stirring; (3) adding a proper amount of an acidity regulator into the seasoned vegetable base material and uniformly stirring to obtain an instant crispy and tasty fresh-keeping vegetable semi-product with a non-significant sour feeling with the pH value of 3.0-4.6; (4) quantitatively packing the instant crispy and tasty fresh-keeping vegetable semi-product to obtain a fresh-keeping vegetable pack; and (5) putting the fresh-keeping vegetable pack into a sterilization room to sterilize, and cooling the fresh-keeping vegetable pack to room temperature after sterilization to obtain the instant crispy and tasty fresh-keeping vegetable. The preparation method is simple, safe and easy to operate, and the instant crispy and tasty fresh-keeping vegetable prepared by the preparation method is crispy and tender in taste, non-significant in sour feeling, stable in flavor and long in expiration date.