Holy crap!!!! MAKE SURE YOU GET FOOD GRADE! This is the first one that came up on Amazon when I searched for "caustic soda". Down in the question section when someone asks if its food grade the answer was that it was more "TECH Grade". LOL
Look at the product description. Sounds like something that probably shouldn't even be shipped safely.
Pure: Sodium Hydroxide, LYE, Caustic Soda Beads.
Thousands of uses! Chemical processing, soaps and detergents, water treatment, pulp and paper, petroleum industries, Drain Opener, etc
Sodium Hydroxide | CAS:#1310-73-2
Cleaning - In liquid form, it is used to de-clog drains, dissolve metals and strip paint off a surface. It can also be used to de-grease Stainless steel and glass bake ware.
Made in the USA. Non clumping.