1、看價格(ge):一般來說,約2.5公(gong)斤(jin)(jin)花(hua)生(sheng)能榨出1公(gong)斤(jin)(jin)花(hua)生(sheng)油(you)(you)和1.5公(gong)斤(jin)(jin)油(you)(you)餅,生(sheng)產出1公(gong)斤(jin)(jin)花(hua)生(sheng)油(you)(you)的(de)(de)最低(di)成(cheng)本約14元。所以(yi)如果(guo)市場上(shang)賣的(de)(de)花(hua)生(sheng)油(you)(you)價格(ge)低(di)于最低(di)成(cheng)本,那很(hen)有(you)可能是小(xiao)作坊(fang)生(sheng)產的(de)(de)劣質油(you)(you)。
2、看感觀(guan):新鮮(xian)花生(sheng)榨出來的(de)花生(sheng)油(you)色(se)澤(ze)(ze)自然,金黃明亮,聞(wen)起來具有花生(sheng)油(you)的(de)天然濃郁(yu)香(xiang)味。若用霉(mei)爛或過了夏天的(de)花生(sheng)仁榨出來的(de)花生(sheng)油(you)色(se)澤(ze)(ze)深暗。
3、聞氣(qi)味(wei)(wei):用(yong)右手指沾油少許,在左手心中猛(meng)搓幾下,然后立(li)即(ji)嗅其氣(qi)味(wei)(wei),有濃(nong)郁純正花生油香(xiang)、無異常味(wei)(wei)道的(de),可認為是(shi)上(shang)品。而摻入香(xiang)精的(de)花生油開始有微微的(de)花生香(xiang)味(wei)(wei),但是(shi)隨著再次揉搓,這種(zhong)花生香(xiang)味(wei)(wei)會越(yue)來越(yue)淡。
4、看凝固(gu)溫度(du):花生(sheng)油(you)(you)(you)(you)的凝固(gu)點(dian)為0-3攝(she)氏度(du),棕櫚油(you)(you)(you)(you)為27-30攝(she)氏度(du),菜(cai)籽油(you)(you)(you)(you)是零下12-零下10攝(she)氏度(du)。將花生(sheng)油(you)(you)(you)(you)放入(ru)冰(bing)箱冷藏(zang)室10分(fen)鐘左右,若油(you)(you)(you)(you)發生(sheng)凝固(gu)現象(xiang),即(ji)可初步(bu)認(ren)定摻有棕櫚油(you)(you)(you)(you);放入(ru)冰(bing)箱冷藏(zang)室約30分(fen)鐘左右,若油(you)(you)(you)(you)出現分(fen)層(ceng)及凝固(gu)現象(xiang),即(ji)可初步(bu)認(ren)定摻有菜(cai)籽油(you)(you)(you)(you)。