I ruined roughly a dozen chicken breasts before I finally bought a digital meat thermometer, and I am still annoyed I waited so long. I was cooking by time, by look, by cutting into the meat, and every single one of those methods lies.

A ten-dollar thermometer fixed my cooking overnight. Here is why it matters more than any other gadget in my kitchen.

Why guessing fails

Chicken is safe at 165°F, but by the time a thick breast reads that in the center, the thinner edge is already at 180 and dry as cardboard. The thermometer tells you the exact moment the center hits the safe temperature, so you pull it before the rest overcooks.

• Chicken: 165°F in the thickest part
• Steak: 130°F for medium rare, 140°F for medium
• Fish: 145°F

What to look for when buying

You want an instant-read thermometer, the kind that gives a reading in two or three seconds, not the old dial ones that take forever.

• Instant-read digital, not analog
• A thin probe so it does not leave a huge hole
• Waterproof is nice but not required

Mine was under fifteen dollars and it has outlasted every other kitchen tool I own. It also stopped me from serving undercooked pork, which is its own reward. If you cook meat more than once a week, this is the single best return on a kitchen purchase there is.