0-50 thermometer

[CTguy923]

so this season will be my first time running a 0-50 thermometer on my pan, prior to this i used a digital hung inside the pan, my question is how to i calibrate the themometer daily to my boiling point ?? , with the digital i just boiled water in the house and added however many degrees i needed and started taking hydrometer readings when i reached that temp...i,m sure theres a simple way to do this but i,m drawing a blank at the moment

[upsmapleman]

There is a adjustment screw on them. Just hold stem in a good boiling water and put pointer on 0. I think the tip should be in at least 3" of boiling water.

[CTguy923]

There is a adjustment screw on them. Just hold stem in a good boiling water and put pointer on 0. I think the tip should be in at least 3" of boiling water.

ok i understand that part but how do i calibrate it once its in the pan and the pan has sap/syrup in it from the previous days boil ?, or does it not need to be recalibrated every day ?

[Kh7722]

ok i understand that part but how do i calibrate it once its in the pan and the pan has sap/syrup in it from the previous days boil ?, or does it not need to be recalibrated every day ?

Personally I use temperature only as a ballpark number. We always check density with a hydrometer. When the density is at the red line on the hot test, just remember your temperature for that draw off and keep it consistent for that boil. It will change daily. Temperature alone is not a sure answer, a good calibrated hydrometer will be your best friend. Oh, and buy 2, the first one so you can drop an break and the second to use lol

[Drew Pond Maple]

I start boiling and once the syrup gets close to the 7 on my thermometer I start checking with hydrometer. Once it reaches the red line I’ll adjust the dial so it’s at 7. I also periodically check syrup with hydrometer throughout the day and adjust dial thermometer as needed.

[CTguy923]

I start boiling and once the syrup gets close to the 7 on my thermometer I start checking with hydrometer. Once it reaches the red line I’ll adjust the dial so it’s at 7. I also periodically check syrup with hydrometer throughout the day and adjust dial thermometer as needed.

thank you !

[MISugarDaddy]

It is not necessary to change your thermometer daily. When you set it to zero in boiling water, note the barometric pressure is at that time. There is a scale that is available that tells you what temperature change is necessary for each tenth of inch of barometric pressure change, positive or negative. Each day, check the current pressure and adjust accordingly.
Gary

[Drew Pond Maple]

It is not necessary to change your thermometer daily. When you set it to zero in boiling water, note the barometric pressure is at that time. There is a scale that is available that tells you what temperature change is necessary for each tenth of inch of barometric pressure change, positive or negative. Each day, check the current pressure and adjust accordingly.
Gary

How do you check barometric pressure? Handheld barometer or local weather station? I don’t usually have to adjust temperature on my normal days of boiling but sometimes I’ll store sap and have a long 8-10 hour day of boiling

[MISugarDaddy]

Mike,
I have a Davis Vantage Vue weather station with two indoor consoles for it. During syrup season I put one of the consoles in the sugarhouse to allow me to monitor the current weather. The barometric pressure reading it supplies is very accurate. I do check it during a long boil because the pressure does change if a weather system is moving into or out of the area.

Gary

[Swingpure]

How do you check barometric pressure? Handheld barometer or local weather station? I don’t usually have to adjust temperature on my normal days of boiling but sometimes I’ll store sap and have a long 8-10 hour day of boiling

I use SapTapApp and that gives you what the boiling point of sap and water for your location and it takes into account the local barometric pressure at that time. Using that and setting your thermometer to that, you can add or subtract the difference from any future temperatures.

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It will also be my first year using it and I do plan on checking the density, but with my refractometer. I hope to dial in the temperature with the density and start the draw off a little heavy.