Can i freeze concentrated sap at 8% sugar if i dont have the time to boil right away..i thinkin i could but would like a second or third option...thx
Freezing concentrate
Can i freeze concentrated sap at 8% sugar if i dont have the time to boil right away..i thinkin i could but would like a second or third option...thx
Sure. No need to completely freeze it though.
2015 - 8 buckets, 332L sap, 8.5L syrup - Barrel evaporator, 2 steam pans
2016 - 8 buckets, 432L sap
2017 - 10 bags, 470L sap, 9L syrup
2018 - 20 bags, 1050L sap, 17.6L syrup
2019 - 20 bags, 970L sap, 22.2L syrup
2020 - 17 bags, 813L sap, 17L syrup
Dr Tim had a post he made once to give the freezing point on various concentrations. You might be best off stopping it 1-2 degrees above the freezing point. Otherwise it might take too long to thaw it on demand.
Dave Klish, I recently ordered a 2x6 wood fired evaporator from A&A Sheet Metal which I will be converting to oil fired
Now have solar, 2x6 finish pan, 5 bank 7x7 filter press, large water jacketed bottler, and tankless water heater.
Recently bought another Gingerich RO, this one was a 125, but a second membrane was added thus is a 250, like I had.
After running a 2x3, a 2x6, 3x8 tapping from 79 taps up to 1320 all woodfired, now I'm going to a 2x6 oil fired and a 200-425 taps.
Absolutely - it should be the sap quality coming out of the freezer as when it went in.
4,600 Taps on vacuum
9,400 gallons storage
3 tower CDL RO
3.5'x14' Lapierre Force 5
Twitter & Instagram: @ennismaple
www.ennismaple.com
From my calculations, the freezing point depression of 8% sugar, considering Kf of water, # of types of molecules, and molarity of sucrose at 8%, would be -0.435 deg C. About 1 deg F. I could be wrong, but I think I am at least close.
I know just enough to be dangerous!
2017 - 20ish taps on buckets, boiling outside in two baking pans
2018 - 70+ taps, 14-buckets, 50+ on tubing, homemade arch from oil tank in my barn, 17 gal syrup
2019 - same set up, 20 gal syrup
2020 - less taps, short season, but RO kit was fantastic! 6 gal syrup and a maple cat!
2021/22/23 - expanded into the neighbors yards! 50 taps on buckets and 40 taps on tubing
http://mapletrader.com/community/sho...lk-tanks-value
Dr Tim shared a chart that contains freezing point of concentrate on the attached thread.
Matt,
Minehart Gap Maple
1F is not -0.4C.Originally Posted by therealtreehugger
Metric is easier. Wink
2015 - 8 buckets, 332L sap, 8.5L syrup - Barrel evaporator, 2 steam pans
2016 - 8 buckets, 432L sap
2017 - 10 bags, 470L sap, 9L syrup
2018 - 20 bags, 1050L sap, 17.6L syrup
2019 - 20 bags, 970L sap, 22.2L syrup
2020 - 17 bags, 813L sap, 17L syrup
You're right in C, but not in F. -0.435 C = 31.2 F.
Chart attached. I'd suggest starting out a bit higher than your intended set point, and creeping downward from there. Temperature measurements and chilling systems have various errors built into them, so could be a few degrees off. Maybe start at 35 deg F and work downward a little over time, keeping an eye out for icing.
freezepointsugar.JPG
Dr. Tim Perkins
UVM Proctor Maple Research Ctr
http://www.uvm.edu/~pmrc
https://mapleresearch.org
Timothy.Perkins@uvm.edu
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