首先,敬佩您的實驗精神。我自己本身做手工皂長達12年之久,是在看了另一個影片後有跑出您影片的縮圖,看標題『只用小蘇打+橄欖油真的可以做肥皂!去污力超強!』的確有吸引到我,從頭到尾看了您的影片,也看了幾個Nabulsi Soap製造的影片和資料,我想我有些不同的看法: kzbin.info/www/bejne/r4HWioKkfLWCkM0 影片中英譯者提到的baking soda,原文是sodium hydrogen/碳酸氫鈉;而製造手工皂所需的「鹼」為sodium hydroxide/氫氧化鈉,後者為強鹼方能與油在皂化過程之後產生泡沫以達到清潔效果而成為我們所稱的「肥皂」。 影片中有一段留言:『Just a correction as a soapmaker: they are using sodium hydroxide, aka lye as the base, not baking soda. it is scientifically impossible to make soap using baking soda since it's not alkaline enough. the error comes from the translation- he simply said they use "soda" in Arabic that in this case means (caustic) soda. and yes, all real soaps are made from lye- sodium hydroxide for soap bars and potassium hydroxide for liquid soaps. it may sound dangerous but they are completely neutralized during the saponification process.』 以上,個人非常同意。 因此,我認為是翻譯的問題而產生這個誤解,也正因為這個原因,您做的「肥皂」無法固化。會做卸妝油的朋友應該也很清楚,有些人自製卸妝油不加入乳化劑,單純用橄欖油來卸妝都可以達到某種程度的清潔效果,更何況您還加了小蘇打粉,所以洗手很乾淨。 結論是,小蘇打粉含鹼性,但是弱到無法與油皂化成皂。做皂還是需要使用更強的鹼如氫氧化鈉和氫氧化鉀。