Cabbage haters can turn their leftovers into litmus paper

[William Finucane] is making his own litmus paper by harnessing the power of cabbage. The process is much easier than the faux gunpowder he made, as it take just the one ingredient and a few kitchen tools.

In case you’ve forgotten your High School chemistry, Litmus is a set of dyes that change color when exposed to basic or acidic … Read the rest