1、看價格：一般來(lai)說，約2.5公(gong)(gong)斤花(hua)(hua)生(sheng)能榨出1公(gong)(gong)斤花(hua)(hua)生(sheng)油(you)(you)和1.5公(gong)(gong)斤油(you)(you)餅(bing)，生(sheng)產(chan)出1公(gong)(gong)斤花(hua)(hua)生(sheng)油(you)(you)的(de)最低(di)成(cheng)本約14元。所以如果市(shi)場上賣的(de)花(hua)(hua)生(sheng)油(you)(you)價格低(di)于最低(di)成(cheng)本，那(nei)很有可能是(shi)小(xiao)作坊(fang)生(sheng)產(chan)的(de)劣質(zhi)油(you)(you)。

2、看感觀：新鮮花生(sheng)(sheng)(sheng)榨(zha)出來(lai)的花生(sheng)(sheng)(sheng)油色澤自然，金黃明亮，聞起來(lai)具有(you)花生(sheng)(sheng)(sheng)油的天然濃郁香(xiang)味。若用霉爛或過了夏天的花生(sheng)(sheng)(sheng)仁榨(zha)出來(lai)的花生(sheng)(sheng)(sheng)油色澤深暗。

3、聞氣味(wei)(wei)：用右手(shou)指(zhi)沾油少許，在左手(shou)心中猛(meng)搓幾下，然后立即嗅其氣味(wei)(wei)，有濃郁純正花(hua)(hua)(hua)生(sheng)(sheng)油香、無異(yi)常味(wei)(wei)道的(de)，可(ke)認為是上品。而摻入香精的(de)花(hua)(hua)(hua)生(sheng)(sheng)油開始有微微的(de)花(hua)(hua)(hua)生(sheng)(sheng)香味(wei)(wei)，但是隨著再次揉搓，這種花(hua)(hua)(hua)生(sheng)(sheng)香味(wei)(wei)會(hui)越來(lai)越淡(dan)。

4、看凝(ning)固溫度(du)(du)：花生油(you)(you)的凝(ning)固點(dian)為(wei)0-3攝(she)氏(shi)(shi)度(du)(du)，棕(zong)櫚(lv)油(you)(you)為(wei)27-30攝(she)氏(shi)(shi)度(du)(du)，菜(cai)籽(zi)(zi)油(you)(you)是(shi)零下12-零下10攝(she)氏(shi)(shi)度(du)(du)。將花生油(you)(you)放入(ru)冰箱(xiang)冷(leng)藏室10分(fen)(fen)鐘左(zuo)右(you)，若油(you)(you)發生凝(ning)固現象，即可(ke)初(chu)步(bu)認定(ding)摻有棕(zong)櫚(lv)油(you)(you)；放入(ru)冰箱(xiang)冷(leng)藏室約30分(fen)(fen)鐘左(zuo)右(you)，若油(you)(you)出現分(fen)(fen)層及(ji)凝(ning)固現象，即可(ke)初(chu)步(bu)認定(ding)摻有菜(cai)籽(zi)(zi)油(you)(you)。