1、看(kan)價格:一般來說,約(yue)(yue)2.5公斤花生(sheng)(sheng)(sheng)能榨出(chu)1公斤花生(sheng)(sheng)(sheng)油(you)和1.5公斤油(you)餅,生(sheng)(sheng)(sheng)產(chan)出(chu)1公斤花生(sheng)(sheng)(sheng)油(you)的(de)(de)最低成(cheng)本(ben)約(yue)(yue)14元。所以如果市場上賣(mai)的(de)(de)花生(sheng)(sheng)(sheng)油(you)價格低于最低成(cheng)本(ben),那(nei)很有(you)可能是小作坊生(sheng)(sheng)(sheng)產(chan)的(de)(de)劣質油(you)。
2、看感觀(guan):新(xin)鮮花(hua)生(sheng)榨出來的花(hua)生(sheng)油色澤(ze)自然,金(jin)黃(huang)明亮,聞起來具有花(hua)生(sheng)油的天(tian)然濃(nong)郁香(xiang)味。若用霉爛或過了夏(xia)天(tian)的花(hua)生(sheng)仁榨出來的花(hua)生(sheng)油色澤(ze)深暗。
3、聞氣味(wei)(wei):用(yong)右手指(zhi)沾(zhan)油少許,在(zai)左手心中猛搓幾下,然后立即嗅其氣味(wei)(wei),有濃郁純(chun)正花(hua)生(sheng)(sheng)油香、無異常味(wei)(wei)道(dao)的,可(ke)認為是(shi)上品。而摻(chan)入(ru)香精(jing)的花(hua)生(sheng)(sheng)油開始有微微的花(hua)生(sheng)(sheng)香味(wei)(wei),但是(shi)隨著再(zai)次揉搓,這種花(hua)生(sheng)(sheng)香味(wei)(wei)會越來越淡。
4、看凝(ning)固(gu)(gu)溫(wen)度(du)(du):花(hua)(hua)生油(you)(you)(you)的凝(ning)固(gu)(gu)點為(wei)(wei)0-3攝氏度(du)(du),棕櫚油(you)(you)(you)為(wei)(wei)27-30攝氏度(du)(du),菜籽油(you)(you)(you)是零下12-零下10攝氏度(du)(du)。將花(hua)(hua)生油(you)(you)(you)放入冰(bing)(bing)箱冷(leng)藏室10分鐘(zhong)(zhong)左(zuo)右(you)(you),若油(you)(you)(you)發(fa)生凝(ning)固(gu)(gu)現(xian)象,即可初步(bu)認定(ding)摻有(you)棕櫚油(you)(you)(you);放入冰(bing)(bing)箱冷(leng)藏室約30分鐘(zhong)(zhong)左(zuo)右(you)(you),若油(you)(you)(you)出現(xian)分層及凝(ning)固(gu)(gu)現(xian)象,即可初步(bu)認定(ding)摻有(you)菜籽油(you)(you)(you)。