Strange phenomena...
Whilst brewing yesterday I filled the sample jar with warm wort, took the OG, put in my thermometer at the same time to make the necessary adjustments. As I slowly removed the thermometer from the trial jar the temperature increased from about 35C to nearly 45C? How can that be?
Thermometer - What is happening???
Re: Thermometer - What is happening???
Digital thermometer with water in the probe?
Stick it in a COOL (i melted mine) oven to dry it out
Stick it in a COOL (i melted mine) oven to dry it out
FV: -
Conditioning: AG34 Randy's Three Nipple Tripel 9.2%, AG39 APA for a mate's wedding
On bottle: AG32 Homegrown Northdown ESB, AG33 Homegrown Cascade Best
On tap: -
Garden: 2x cascade, 2x Farnham whitebine (mathon), 2x northdown, 1x first gold
Re: Thermometer - What is happening???
Yep been there, done that But yesterday I was using my bog standard mercury glass thermometerBobba wrote:Digital thermometer with water in the probe?
Stick it in a COOL (i melted mine) oven to dry it out
Re: Thermometer - What is happening???
Probably because glass thermometers are calibrated for a particular immersion depth, usually 76mm, and because like air, hot water rises and it will be much hotter at the top than at the bottom of your sample jar. Stir it thoroughly before taking the temperature measurement, but not with the thermometer.garwatts wrote:Strange phenomena...
Whilst brewing yesterday I filled the sample jar with warm wort, took the OG, put in my thermometer at the same time to make the necessary adjustments. As I slowly removed the thermometer from the trial jar the temperature increased from about 35C to nearly 45C? How can that be?
Re: Thermometer - What is happening???
Thanks - will try that Graham - it makes sense but I have never noticed it before Also it's quite a temeprature drop fro 45 to 35??Graham wrote:Probably because glass thermometers are calibrated for a particular immersion depth, usually 76mm, and because like air, hot water rises and it will be much hotter at the top than at the bottom of your sample jar. Stir it thoroughly before taking the temperature measurement, but not with the thermometer.garwatts wrote:Strange phenomena...
Whilst brewing yesterday I filled the sample jar with warm wort, took the OG, put in my thermometer at the same time to make the necessary adjustments. As I slowly removed the thermometer from the trial jar the temperature increased from about 35C to nearly 45C? How can that be?