Since caffeine is heat sensitive (Like alcohol) simply cold brew some coffee. You won't believe how much caffeine is in cold brewed coffee. Be careful your head may blow off!!!
Just place a couple tablespoons full of ground coffee in a cup of cold water and let it sit overnight in your refrigerator. In the morning pour it through a filter and drink.
Be warned this is a serious concentration of caffeine.
RE:Electrolytic Etching, For What A Dremel Can't Do:
Same process used to cut the rifling (cut spiral grooves within (a gun barrel) in small cannons, like 25MM Bushmaster.
Works real good!
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Since caffeine is heat sensitive (Like alcohol) simply cold brew some coffee. You won't believe how much caffeine is in cold brewed coffee. Be careful your head may blow off!!! Just place a couple tablespoons full of ground coffee in a cup of cold water and let it sit overnight in your refrigerator. In the morning pour it through a filter and drink. Be warned this is a serious concentration of caffeine.
RE:Electrolytic Etching, For What A Dremel Can't Do: Same process used to cut the rifling (cut spiral grooves within (a gun barrel) in small cannons, like 25MM Bushmaster. Works real good!