現(xian)在(zai)市場基(ji)本(ben)有(you)兩種包裝形(xing)式，一種為普通的(de)包裝，利用(yong)(yong)聚丙稀塑料編織袋對(dui)大米(mi)(mi)進(jin)(jin)行包裝，包裝過(guo)程中(zhong)不施加任何的(de)保鮮(xian)技(ji)術，這種包裝對(dui)于大米(mi)(mi)的(de)防(fang)蟲及防(fang)霉等(deng)方面的(de)效果(guo)差。還有(you)一種是用(yong)(yong)真空(kong)(kong)(kong)包裝技(ji)術對(dui)包裝袋進(jin)(jin)行抽真空(kong)(kong)(kong)，真空(kong)(kong)(kong)鈄技(ji)術對(dui)大米(mi)(mi)的(de)儲存有(you)較好的(de)保鮮(xian)作用(yong)(yong)，但用(yong)(yong)于大米(mi)(mi)自身的(de)形(xing)狀(zhuang)及真空(kong)(kong)(kong)度(du)的(de)選(xuan)(xuan)擇并不合適，目前大米(mi)(mi)真空(kong)(kong)(kong)包裝選(xuan)(xuan)用(yong)(yong)的(de)真空(kong)(kong)(kong)度(du)一般在(zai)-0.07～-0.09kPa之(zhi)間，只要真空(kong)(kong)(kong)度(du)在(zai)范圍(wei)內(nei)，所出廠的(de)就(jiu)是合格產品。