Black vinegar is brewed from excellent rice.

One of the famous specialties of Qinghai, it has at least 200 years of history. Huangyuan Aged Vinegar, also called black vinegar, has pure sourness, clear sweetness, thick texture, good color and aroma, and eating more can increase appetite, help digestion and strengthen the spleen and stomach, prevent colds and flu, and clear the heart and detoxification.

Black rice vinegar and egg nutritious liquid is to use black rice as raw material, after enzyme digestion and fermentation, to make black rice nutritious liquid and black rice vinegar and egg liquid, and use slightly acidic black rice vinegar to soak the egg, make it dissolve and become black rice vinegar and egg nutritious liquid. The key technology of the invention lies in the making of black rice nutrition liquid and black rice vinegar liquid, because the time of enzymatic dissolution and the high and low pH value directly affect the degree of degradation of nutrients. The technical characteristics of the invention are: black rice as raw material to make black rice nutrition liquid and pH value of 4.5-5 black rice vinegar, black vinegar to soak the whole fresh eggs, nutrition liquid at the same time with SOD active protein, mainly used for middle-aged and old people and juvenile malnutrition, supplementation of active proteins, amino acids, as well as iron, zinc, calcium, phosphorus, selenium, vitamins B1, B2, C and E.