The invention provides a Yerba mate jam. The Yerba mate jam disclosed by the invention is prepared from the following raw materials in percentage by weight: 5%-10% of mate stems and leaves, 80-95% of fruits, 0.1-0.5% of honey, 0.2-1.0% of
citric acid, 0.5-2% of refined konjak
powder and 0.01-0.04% of
cane sugar. The Yerba mate jam is prepared through the following steps: making the mate stems and leaves, which are in a rated formula, into nanometer mate micro
powder through the technologies of countercurrent extraction, cooling, butterfly separation,
micropore filtration and vibratory
grinding; selecting fresh fruits, and
processing the selected fresh fruits so as to obtain fruit
flesh; soaking the processed fruit
flesh and penetrating fluid according to the proportion of 1:3-10, performing vacuum
osmotic dehydration at the temperature of 40-65 DEG C, then taking the fruit
flesh out of the penetrating fluid, and draining the fruit flesh; putting the fruit flesh into a pulping
machine so as to obtain pulp; and putting the pulp into a pot with a stirring function and with an interlayer, adding Yerba mate micro
powder, the
citric acid and the refined konjak powder according to the compounding ratio, heating the mixture to 80-90 DEG C, and uniformly stirring the heated mixture for 10-20 minutes to form sauce. According to the invention, the mate stems and leaves are innovatively ground to form nanometer powder, so that
nutrient components can be sufficiently absorbed by a
human body, the Yerba mate jam is rich in
nutrition, low in
sugar content and fragrant and sweet in taste. If people eat the Yerba mate jam for a long term,
nutrition required by the
human body can be supplied, and the Yerba mate jam cannot lead to
obesity.