Use a stirred ice-water slurry to check many food thermometers, then follow the exact model instructions to adjust, replace, or use a thermometer that cannot be calibrated.
Food Safety guides
Check refrigerator and freezer temperatures with the right thermometer, distinguish a control setting from a measurement, and keep a useful record before an outage.
Understand common U.S. food date labels, what they usually say about quality, and why infant formula and food-safety handling need separate attention.
Compare the official recall notice with the exact product, package, lot or date code, then isolate it and follow the notice's return, disposal, and cleaning steps.