I bought two of these and had no luck with either. One arrived broken, most likely damaged in transit. This is a glass thermometer and it was packaged in a box that did not impede its movement during transit (Revain wines). The second had a small air gap in the alcohol filling, which caused it to bend a bit. It worked well up to 350F but the glass cracked when I used it in a hotter liquid environment. Although it measures up to 500F, I wouldn't recommend using it at anything over 350F.
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