Method for preparing non-toxic lacquer, fermented rice bran powder using same, and method for manufacturing powdered grain nutrient food

A method for preparing a non-toxic lacquer composition, the method comprising:

• cutting and splitting stems of lacquer trees in 4 cm to 6 cm lengths, cleaning and drying them to prepare the cut and split stems of the lacquer trees;
• preparing a malt liquid in which malt is brewed by putting the malt in water and brewing for 10 hours;
• putting and sealing the prepared malt liquid and a fermented rice bran in a pottery container and fermenting at a temperature in the range of 20° C. to 25° C. for 70 to 80 hours to prepare a fermented malt juice;
• and
• putting the cut and split stems of the lacquer trees, water and the fermented malt juice in the container, covering and sealing the container, and thereafter ripening the contents at a temperature in the range of 10° C. to 20° C. for 5 months to prepare the non-toxic lacquer composition.