1、看(kan)價(jia)格(ge)：一般來說，約2.5公(gong)(gong)斤(jin)(jin)(jin)花(hua)(hua)生(sheng)(sheng)(sheng)能榨出(chu)1公(gong)(gong)斤(jin)(jin)(jin)花(hua)(hua)生(sheng)(sheng)(sheng)油和1.5公(gong)(gong)斤(jin)(jin)(jin)油餅，生(sheng)(sheng)(sheng)產出(chu)1公(gong)(gong)斤(jin)(jin)(jin)花(hua)(hua)生(sheng)(sheng)(sheng)油的最(zui)低成(cheng)(cheng)本約14元(yuan)。所(suo)以如(ru)果市場(chang)上賣的花(hua)(hua)生(sheng)(sheng)(sheng)油價(jia)格(ge)低于最(zui)低成(cheng)(cheng)本，那很有可能是小(xiao)作坊生(sheng)(sheng)(sheng)產的劣質油。

2、看感(gan)觀：新(xin)鮮花(hua)(hua)(hua)生榨(zha)出來的花(hua)(hua)(hua)生油色澤自(zi)然，金黃明亮(liang)，聞起來具有(you)花(hua)(hua)(hua)生油的天(tian)然濃郁(yu)香味(wei)。若用霉爛或過(guo)了(le)夏天(tian)的花(hua)(hua)(hua)生仁榨(zha)出來的花(hua)(hua)(hua)生油色澤深暗(an)。

3、聞(wen)氣味(wei)(wei)：用右手指沾油少許，在左手心(xin)中猛搓(cuo)幾(ji)下，然后(hou)立即(ji)嗅(xiu)其(qi)氣味(wei)(wei)，有濃郁純正花(hua)生油香(xiang)、無異(yi)常味(wei)(wei)道的(de)，可認為是(shi)上品。而摻(chan)入香(xiang)精的(de)花(hua)生油開始有微微的(de)花(hua)生香(xiang)味(wei)(wei)，但(dan)是(shi)隨(sui)著再(zai)次揉搓(cuo)，這(zhe)種(zhong)花(hua)生香(xiang)味(wei)(wei)會越來越淡。

4、看凝(ning)固溫(wen)度：花生(sheng)(sheng)油(you)(you)(you)的凝(ning)固點為0-3攝(she)氏度，棕櫚油(you)(you)(you)為27-30攝(she)氏度，菜籽油(you)(you)(you)是零(ling)下12-零(ling)下10攝(she)氏度。將花生(sheng)(sheng)油(you)(you)(you)放入(ru)冰箱(xiang)冷藏(zang)(zang)室10分鐘左右(you)，若油(you)(you)(you)發(fa)生(sheng)(sheng)凝(ning)固現(xian)象，即(ji)可(ke)(ke)初步認定摻有(you)棕櫚油(you)(you)(you)；放入(ru)冰箱(xiang)冷藏(zang)(zang)室約30分鐘左右(you)，若油(you)(you)(you)出現(xian)分層及凝(ning)固現(xian)象，即(ji)可(ke)(ke)初步認定摻有(you)菜籽油(you)(you)(you)。