現(xian)在(zai)(zai)市場基(ji)本(ben)有兩種包(bao)(bao)裝(zhuang)(zhuang)(zhuang)形式，一(yi)種為普通的包(bao)(bao)裝(zhuang)(zhuang)(zhuang)，利用(yong)(yong)(yong)聚丙稀塑料編織袋(dai)對(dui)大米進行(xing)包(bao)(bao)裝(zhuang)(zhuang)(zhuang)，包(bao)(bao)裝(zhuang)(zhuang)(zhuang)過程(cheng)中不施加任何的保鮮技(ji)術，這種包(bao)(bao)裝(zhuang)(zhuang)(zhuang)對(dui)于大米的防蟲及防霉等方面的效(xiao)果差(cha)。還有一(yi)種是用(yong)(yong)(yong)真空(kong)(kong)(kong)包(bao)(bao)裝(zhuang)(zhuang)(zhuang)技(ji)術對(dui)包(bao)(bao)裝(zhuang)(zhuang)(zhuang)袋(dai)進行(xing)抽真空(kong)(kong)(kong)，真空(kong)(kong)(kong)鈄技(ji)術對(dui)大米的儲(chu)存有較好的保鮮作(zuo)用(yong)(yong)(yong)，但用(yong)(yong)(yong)于大米自(zi)身的形狀及真空(kong)(kong)(kong)度(du)的選擇(ze)并不合適，目前大米真空(kong)(kong)(kong)包(bao)(bao)裝(zhuang)(zhuang)(zhuang)選用(yong)(yong)(yong)的真空(kong)(kong)(kong)度(du)一(yi)般(ban)在(zai)(zai)-0.07～-0.09kPa之間，只要真空(kong)(kong)(kong)度(du)在(zai)(zai)范圍內，所出廠的就是合格產(chan)品。