Soap
From Federal Burro of Information
Equipment
- 2 Old pots - 2$
- Digital Thermometer - 12$
- Digital Scale - 28$
- plastic containers - free - used containers from other stuff , yogurt, wood putty
Consumed
- olive oil - 3 litre - 11$ - grocery store
- lye ( sodium hydroxide - NaOH ) - 3kg - 22$ - hardware store
Roughly
fat + base ( NaOh or KOH ) = Fatty Acids + Glycerol i.e. soap