i mean your food scales.
i thought my 3 oz of chicken looked BIG last night. thankfully we have another digital scale at home and I grabbed my 1 pound weights and weighed them
the BROKEN scale weighed 1 pound at 13.6 oz WAY OFF and too light
the USING IT NOW scale weighed my 1 pound weight at 16.7 which seems right to me and my 2 pound weight at 2.2 which also seems right.
SO check those scales!

I make sure to zero it from time to time. It goes up to 5 pounds with a swinging needle indicator. I just tested it with a 2 pound weight, and it's quite close.