Alcohol Thermometers

EU Regulations have have now banned mercury in thermometers. Manufacturers responded by producing a new alcohol version which coloured blue.

It is very important to note that blue alcohol will not climb to the "data point" in almost all thermometers. They are really only useful to show some heat, as its rare for the column to get above the black. Please DO NOT BUY if you expect a like-for-like reading with the original mercury version and the alcohol version should be seen as a cosmetic version only.
Not suitable AT ALL for solid fuel Agas range cookers.

Please see the two photographs below. Both were taken with with each version in the same cooker running at 228oC.