, from hydrated potash ). Previously, lye was among the many different alkalis leached from hardwood ashes. [1] Today lye is commercially manufactured using a membrane cell method. See Material Safety Data Sheet at :  http://www.sciencestuff.com/msds/C2582.html   Medical advise on sodium hydroxide poisoning:         http://www.nlm.nih.gov/medlineplus/ency/article/002487.htm    Recipes Ask Google for Lye Buns