1、看價格(ge):一般來(lai)說,約2.5公(gong)斤(jin)(jin)花(hua)生(sheng)(sheng)(sheng)能(neng)榨出1公(gong)斤(jin)(jin)花(hua)生(sheng)(sheng)(sheng)油(you)(you)和1.5公(gong)斤(jin)(jin)油(you)(you)餅,生(sheng)(sheng)(sheng)產(chan)出1公(gong)斤(jin)(jin)花(hua)生(sheng)(sheng)(sheng)油(you)(you)的最低成本約14元。所以如果市場上賣(mai)的花(hua)生(sheng)(sheng)(sheng)油(you)(you)價格(ge)低于最低成本,那很有可能(neng)是(shi)小(xiao)作(zuo)坊(fang)生(sheng)(sheng)(sheng)產(chan)的劣質油(you)(you)。
2、看感觀(guan):新鮮花(hua)生榨出來的(de)花(hua)生油(you)色澤自(zi)然,金黃明亮,聞起來具有花(hua)生油(you)的(de)天然濃郁香(xiang)味。若用霉爛或過(guo)了夏天的(de)花(hua)生仁榨出來的(de)花(hua)生油(you)色澤深暗。
3、聞氣(qi)(qi)味(wei):用(yong)右手指沾油少許,在左手心(xin)中猛搓(cuo)幾下,然后(hou)立即嗅其氣(qi)(qi)味(wei),有(you)濃郁純(chun)正花(hua)(hua)生(sheng)油香、無異(yi)常(chang)味(wei)道的,可(ke)認為是上品。而摻入香精的花(hua)(hua)生(sheng)油開(kai)始有(you)微微的花(hua)(hua)生(sheng)香味(wei),但(dan)是隨(sui)著再(zai)次揉搓(cuo),這種花(hua)(hua)生(sheng)香味(wei)會越(yue)來越(yue)淡。
4、看凝(ning)固(gu)(gu)溫度:花生(sheng)(sheng)油(you)(you)(you)的凝(ning)固(gu)(gu)點為(wei)0-3攝氏度,棕(zong)櫚油(you)(you)(you)為(wei)27-30攝氏度,菜籽油(you)(you)(you)是(shi)零(ling)下12-零(ling)下10攝氏度。將(jiang)花生(sheng)(sheng)油(you)(you)(you)放(fang)入(ru)(ru)冰(bing)箱(xiang)冷藏(zang)室10分鐘左(zuo)右,若(ruo)油(you)(you)(you)發生(sheng)(sheng)凝(ning)固(gu)(gu)現(xian)象(xiang),即可初(chu)步(bu)認(ren)定摻有棕(zong)櫚油(you)(you)(you);放(fang)入(ru)(ru)冰(bing)箱(xiang)冷藏(zang)室約30分鐘左(zuo)右,若(ruo)油(you)(you)(you)出現(xian)分層及凝(ning)固(gu)(gu)現(xian)象(xiang),即可初(chu)步(bu)認(ren)定摻有菜籽油(you)(you)(you)。