Hot-process soapmaking was used when the purity of lye was unreliable, and this process can use natural lye solutions, such as potash.
Most likely, what your students observed was a mist of lye solution in the air, produced by the heat from the lye solution.
If I had to eat boiled cod soaked in lye solution, I'd look like Max von Sydow too.
Some cooks choose to treat the dried lotus seeds with a lye solution before initially stewing them in order to shorten their cooking time.
In some respects, a lye solution is even more dangerous to your skin than battery acid.
Losing her job at the local beauty parlor because of refusing to use a lye solution on a customer's hair, Mattie is a strong-willed, religious woman.
Regnault exhumed the bodies, placed them into a lye solution and wrapped the bones in linens.
They are made by glazing bread rolls with a lye solution before baking.
The same solution is also used for preparing pretzels; outside of Germany they are often the only baked food being commonly glazed with a lye solution.
Soapmakers deemed the lye solution ready for use when an egg would float in it.