Review on 🔵 Combo Pack of Blue Acid Indicator Test Strips by Chakravarthi Ladner

Using this product in my classroom I can say that this litmus test does what it is supposed to. Blue paper reliably turns red under acidic conditions, and red paper turns blue under basic conditions. They are not intended to provide an exact pH value, but are for general guidance only. I wasted no time evaluating the sensitivity of litmus paper. If you're trying to test something very slightly acidic and alkaline, this might not be the best option.