If you have ever wondered if coffee being served at a wedding is decaffeinated or if your barista remembered to make your drink decaf, these strips are for you. These strips are not intended to be used in a beverage with milk or sugar – so in practice they are only useful for brewed coffee [...]
The perfect solution for paranoid coffee drinkers!
https://www.thatscoffee.com/scoop/dcaf-caffeine-test-strips/
With some baristas serving customers decaf to mess with them, these caffeine test strips are a must-have!