1、看(kan)價格:一般(ban)來說(shuo),約2.5公(gong)斤花(hua)生(sheng)能榨出(chu)1公(gong)斤花(hua)生(sheng)油和1.5公(gong)斤油餅(bing),生(sheng)產(chan)出(chu)1公(gong)斤花(hua)生(sheng)油的最低成本約14元。所(suo)以如果(guo)市(shi)場上賣的花(hua)生(sheng)油價格低于最低成本,那很(hen)有可能是小作(zuo)坊生(sheng)產(chan)的劣質(zhi)油。
2、看(kan)感觀:新鮮花(hua)生(sheng)榨出(chu)來的花(hua)生(sheng)油(you)色(se)澤自然(ran),金黃明亮(liang),聞(wen)起來具有(you)花(hua)生(sheng)油(you)的天然(ran)濃郁香(xiang)味。若用霉爛(lan)或過了夏天的花(hua)生(sheng)仁(ren)榨出(chu)來的花(hua)生(sheng)油(you)色(se)澤深(shen)暗。
3、聞氣(qi)味(wei)(wei):用(yong)右手(shou)指沾油少許(xu),在左手(shou)心中猛搓(cuo)幾下,然后立(li)即嗅其氣(qi)味(wei)(wei),有濃郁(yu)純(chun)正花(hua)生(sheng)(sheng)油香(xiang)、無異常味(wei)(wei)道(dao)的,可認為(wei)是上品(pin)。而(er)摻入香(xiang)精的花(hua)生(sheng)(sheng)油開始(shi)有微微的花(hua)生(sheng)(sheng)香(xiang)味(wei)(wei),但是隨著再次揉搓(cuo),這種花(hua)生(sheng)(sheng)香(xiang)味(wei)(wei)會越來越淡。
4、看凝固(gu)溫度(du):花(hua)生(sheng)(sheng)油(you)(you)(you)的凝固(gu)點為0-3攝(she)氏(shi)度(du),棕櫚油(you)(you)(you)為27-30攝(she)氏(shi)度(du),菜(cai)籽(zi)油(you)(you)(you)是零下12-零下10攝(she)氏(shi)度(du)。將花(hua)生(sheng)(sheng)油(you)(you)(you)放(fang)入冰箱冷藏室(shi)10分鐘左右(you),若(ruo)油(you)(you)(you)發生(sheng)(sheng)凝固(gu)現象(xiang),即可(ke)(ke)初(chu)(chu)步認定(ding)摻(chan)有棕櫚油(you)(you)(you);放(fang)入冰箱冷藏室(shi)約(yue)30分鐘左右(you),若(ruo)油(you)(you)(you)出現分層及凝固(gu)現象(xiang),即可(ke)(ke)初(chu)(chu)步認定(ding)摻(chan)有菜(cai)籽(zi)油(you)(you)(you)。