1、看色(se)澤:良質豆腐(fu)干(gan),呈乳白色(se)或(huo)淺黃(huang)色(se),有光(guang)(guang)澤;次(ci)質豆腐(fu)干(gan),比正常(chang)豆腐(fu)干(gan)的顏色(se)深;劣(lie)質豆腐(fu)干(gan),色(se)澤呈深黃(huang)色(se)略微發(fa)紅或(huo)發(fa)綠,無(wu)光(guang)(guang)澤或(huo)光(guang)(guang)澤不均勻。
2、看質(zhi)(zhi)(zhi)地:良質(zhi)(zhi)(zhi)豆(dou)腐干,質(zhi)(zhi)(zhi)地細膩,邊(bian)角(jiao)整齊,有一定的彈(dan)性,切開(kai)處擠壓不出水,無雜質(zhi)(zhi)(zhi);次質(zhi)(zhi)(zhi)豆(dou)腐干,質(zhi)(zhi)(zhi)地粗(cu)糙,邊(bian)角(jiao)不齊或缺損,彈(dan)性差且易被折(zhe)粘,切口(kou)處可擠壓出水珠(zhu);劣(lie)質(zhi)(zhi)(zhi)豆(dou)腐干,質(zhi)(zhi)(zhi)地粗(cu)糙無彈(dan)性,表面粘滑,切開(kai)時(shi)粘刀(dao),切口(kou)擠壓時(shi)有水流(liu)出。
3、嘗味(wei)(wei)(wei)(wei)道:良質豆(dou)腐(fu)干,具有豆(dou)腐(fu)干特有的清香(xiang)氣(qi)味(wei)(wei)(wei)(wei),無(wu)其他異味(wei)(wei)(wei)(wei),滋味(wei)(wei)(wei)(wei)純正(zheng),咸淡適口(kou);劣質豆(dou)腐(fu)干,有餿味(wei)(wei)(wei)(wei)、腐(fu)臭味(wei)(wei)(wei)(wei)、酸味(wei)(wei)(wei)(wei)、苦澀味(wei)(wei)(wei)(wei)等(deng)不良滋味(wei)(wei)(wei)(wei)。