Then head to the spice rack in the grocery store
Wonder how long that took.
Which metals does the alum solution attack, and which does it leave alone?
How does this compare to using soda, such as Coke or Pepsi?
Then head to the spice rack in the grocery store
Wonder how long that took.
Which metals does the alum solution attack, and which does it leave alone?
How does this compare to using soda, such as Coke or Pepsi?