1、看價格:一(yi)般來說,約2.5公(gong)斤(jin)(jin)花(hua)(hua)(hua)生(sheng)(sheng)能(neng)榨(zha)出1公(gong)斤(jin)(jin)花(hua)(hua)(hua)生(sheng)(sheng)油和1.5公(gong)斤(jin)(jin)油餅,生(sheng)(sheng)產出1公(gong)斤(jin)(jin)花(hua)(hua)(hua)生(sheng)(sheng)油的(de)最(zui)(zui)低(di)成本約14元。所以如果市(shi)場上(shang)賣的(de)花(hua)(hua)(hua)生(sheng)(sheng)油價格低(di)于最(zui)(zui)低(di)成本,那很有可能(neng)是小作坊(fang)生(sheng)(sheng)產的(de)劣(lie)質油。
2、看感觀(guan):新鮮花(hua)(hua)生榨出來的(de)(de)花(hua)(hua)生油色澤自(zi)然,金(jin)黃(huang)明亮(liang),聞(wen)起(qi)來具有花(hua)(hua)生油的(de)(de)天然濃郁香味。若用霉爛或過(guo)了(le)夏天的(de)(de)花(hua)(hua)生仁(ren)榨出來的(de)(de)花(hua)(hua)生油色澤深暗。
3、聞氣味:用右手指沾油(you)少許,在左手心中(zhong)猛(meng)搓幾下,然后立即嗅其氣味,有(you)濃(nong)郁純(chun)正花生油(you)香(xiang)、無異常味道(dao)的(de)(de),可認為是上(shang)品。而摻入(ru)香(xiang)精的(de)(de)花生油(you)開始有(you)微微的(de)(de)花生香(xiang)味,但是隨著再次揉(rou)搓,這種(zhong)花生香(xiang)味會(hui)越來越淡(dan)。
4、看凝(ning)固(gu)溫度:花(hua)生油(you)(you)的(de)凝(ning)固(gu)點為(wei)0-3攝(she)氏度,棕櫚油(you)(you)為(wei)27-30攝(she)氏度,菜(cai)籽油(you)(you)是零(ling)下(xia)12-零(ling)下(xia)10攝(she)氏度。將花(hua)生油(you)(you)放入(ru)冰(bing)箱冷藏室(shi)10分鐘(zhong)左右,若(ruo)油(you)(you)發生凝(ning)固(gu)現(xian)象(xiang),即(ji)可初步(bu)認(ren)定(ding)摻有(you)棕櫚油(you)(you);放入(ru)冰(bing)箱冷藏室(shi)約30分鐘(zhong)左右,若(ruo)油(you)(you)出現(xian)分層及凝(ning)固(gu)現(xian)象(xiang),即(ji)可初步(bu)認(ren)定(ding)摻有(you)菜(cai)籽油(you)(you)。