You can buy a digital pH meter for about thirty bucks. It looks like a tiny thermometer with a probe. You dip it in saliva or urine, and it spits out a number on a screen.
No color guessing. No squinting at a chart. It’s satisfyingly precise. Just calibrate it first with buffer solutions—or you’ll get readings that make no sense.
Pro tip: don’t use your dishwasher detergent to clean the probe. That’s a one-way ticket to mystery readings. Rinse with distilled water instead.
