1、看價格:一般來說,約2.5公(gong)(gong)斤(jin)花(hua)生(sheng)能榨出1公(gong)(gong)斤(jin)花(hua)生(sheng)油(you)和1.5公(gong)(gong)斤(jin)油(you)餅(bing),生(sheng)產(chan)出1公(gong)(gong)斤(jin)花(hua)生(sheng)油(you)的(de)(de)最低(di)(di)成本約14元(yuan)。所以(yi)如(ru)果市場上賣的(de)(de)花(hua)生(sheng)油(you)價格低(di)(di)于最低(di)(di)成本,那(nei)很(hen)有(you)可能是小作坊生(sheng)產(chan)的(de)(de)劣(lie)質油(you)。
2、看感(gan)觀:新鮮花生榨出(chu)來(lai)的(de)(de)花生油(you)色澤自然(ran),金(jin)黃明亮(liang),聞起來(lai)具有花生油(you)的(de)(de)天(tian)(tian)然(ran)濃郁香味(wei)。若用霉爛(lan)或過了夏(xia)天(tian)(tian)的(de)(de)花生仁榨出(chu)來(lai)的(de)(de)花生油(you)色澤深暗。
3、聞(wen)氣味(wei):用右手指沾(zhan)油(you)少(shao)許(xu),在左手心(xin)中猛搓幾下,然后(hou)立即嗅其氣味(wei),有濃郁純正花(hua)生(sheng)油(you)香(xiang)、無異常味(wei)道的(de)(de),可認為是上品。而摻入(ru)香(xiang)精的(de)(de)花(hua)生(sheng)油(you)開始有微(wei)微(wei)的(de)(de)花(hua)生(sheng)香(xiang)味(wei),但是隨著再(zai)次揉搓,這(zhe)種花(hua)生(sheng)香(xiang)味(wei)會越來(lai)越淡。
4、看凝(ning)固(gu)溫度(du)(du):花(hua)生油(you)(you)(you)的凝(ning)固(gu)點為(wei)0-3攝(she)氏度(du)(du),棕櫚油(you)(you)(you)為(wei)27-30攝(she)氏度(du)(du),菜(cai)籽(zi)油(you)(you)(you)是(shi)零下(xia)12-零下(xia)10攝(she)氏度(du)(du)。將花(hua)生油(you)(you)(you)放(fang)入冰箱冷(leng)(leng)藏室(shi)10分鐘(zhong)左右,若油(you)(you)(you)發(fa)生凝(ning)固(gu)現(xian)象,即可初步(bu)認(ren)定(ding)摻有棕櫚油(you)(you)(you);放(fang)入冰箱冷(leng)(leng)藏室(shi)約30分鐘(zhong)左右,若油(you)(you)(you)出現(xian)分層及(ji)凝(ning)固(gu)現(xian)象,即可初步(bu)認(ren)定(ding)摻有菜(cai)籽(zi)油(you)(you)(you)。