1、看價格:一般來說,約(yue)2.5公斤(jin)花(hua)(hua)生(sheng)(sheng)(sheng)(sheng)能(neng)榨(zha)出(chu)1公斤(jin)花(hua)(hua)生(sheng)(sheng)(sheng)(sheng)油(you)和1.5公斤(jin)油(you)餅,生(sheng)(sheng)(sheng)(sheng)產(chan)出(chu)1公斤(jin)花(hua)(hua)生(sheng)(sheng)(sheng)(sheng)油(you)的(de)最低(di)成本約(yue)14元(yuan)。所以(yi)如果市場上賣的(de)花(hua)(hua)生(sheng)(sheng)(sheng)(sheng)油(you)價格低(di)于(yu)最低(di)成本,那很有可能(neng)是(shi)小作坊(fang)生(sheng)(sheng)(sheng)(sheng)產(chan)的(de)劣(lie)質油(you)。
2、看感觀:新鮮花(hua)生(sheng)榨(zha)(zha)出來的花(hua)生(sheng)油色澤自然(ran)(ran),金黃明(ming)亮,聞起來具有花(hua)生(sheng)油的天(tian)然(ran)(ran)濃郁香味。若用霉爛(lan)或過了夏天(tian)的花(hua)生(sheng)仁榨(zha)(zha)出來的花(hua)生(sheng)油色澤深暗。
3、聞氣味(wei)(wei):用(yong)右手指沾油(you)少許,在左手心中(zhong)猛搓(cuo)幾下,然后立即嗅其氣味(wei)(wei),有(you)濃郁純正(zheng)花(hua)(hua)生油(you)香、無異常味(wei)(wei)道的,可認(ren)為是上品(pin)。而摻(chan)入香精的花(hua)(hua)生油(you)開始有(you)微微的花(hua)(hua)生香味(wei)(wei),但是隨著再次揉搓(cuo),這種(zhong)花(hua)(hua)生香味(wei)(wei)會越來越淡。
4、看凝固溫度(du):花(hua)生油(you)(you)(you)的凝固點為(wei)0-3攝氏度(du),棕櫚油(you)(you)(you)為(wei)27-30攝氏度(du),菜(cai)籽(zi)油(you)(you)(you)是零下(xia)12-零下(xia)10攝氏度(du)。將(jiang)花(hua)生油(you)(you)(you)放入冰箱冷藏室10分(fen)鐘左右(you)(you),若油(you)(you)(you)發生凝固現(xian)(xian)象,即可(ke)初步(bu)認定(ding)摻(chan)有棕櫚油(you)(you)(you);放入冰箱冷藏室約30分(fen)鐘左右(you)(you),若油(you)(you)(you)出現(xian)(xian)分(fen)層(ceng)及凝固現(xian)(xian)象,即可(ke)初步(bu)認定(ding)摻(chan)有菜(cai)籽(zi)油(you)(you)(you)。