What does Mianrou 8 pure grain mean?

Hello, what does Red Star Erguotou Mianrou 8 pure grain mean? Red Star Erguotou Mianrou 8 pure grain is Erguotou series pure grain flavor wine. Soft Mianrou 8 pure grain is brewed by sorghum, barley and peas with water. It is produced by Beijing Hongxing Co., Ltd. According to expert appraisal, Hongxing Mianrou 8 is the most cost-effective and reliable ration wine in Beijing Erguotou. Although its price is low, it is a pure grain Luzhou-flavor wine brewed by hand in ancient times. Red Star Mianrou 8 is affectionately called "Smurfs" in the circle of drinkers. Red Star Mianrou 8 is not as spicy as other Erguotou. Soft taste, its wine is elegant and pure, clean and pure.