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Thread: Time to Boil 120 Gallons of sap?

  1. #1
    Join Date
    Feb 2015
    Location
    Aitkin, Minnesota
    Posts
    18

    Default Time to Boil 120 Gallons of sap?

    Approximately how long will it take me to make syrup boiling 120 gallons of sap over a wood fire, in a 2' x 3' X 8" stainless steel pan with temps around 40 degrees F?

  2. #2
    Join Date
    Feb 2008
    Location
    DeKalb, NY
    Posts
    1,707

    Default

    Twenty hours

  3. #3
    Join Date
    Jan 2016
    Location
    MA
    Posts
    589

    Default

    Depends on a number of factors mostly revolving around how hot a fire you can get under your pan. Best case scenario without a blower is probably 6 gallons per hour evaporation rate leading to about 20 hours of boiling. With a blower you could do upwards of 9gph leading to about 13 hours boiling.
    60ish taps on buckets
    D&G Sportsman 18x63
    Turbo RB15 RO Bucket

  4. #4
    Join Date
    Mar 2005
    Location
    Albion PA
    Posts
    5,099

    Default

    Yes this is where size matters or you get a R.O.!
    We could boil it in a hour.
    Yea 20 hours sounds about right for that size rig.
    Keep boiling!
    Regards,
    Chris
    Casbohm Maple and Honey
    625 roadside taps + Neighbors bring some sap too!
    3x10 King, WRU, AOF and AUF
    12" SIRO Filter Press.
    2015 Ford F250 PSD sap hauler
    One Golden named Maggie, Norwegian Forest Cat named Lucy
    Too many Cub Cadets
    Ford Jubilee and several Allis WD's, and IH tractors
    1932 Ford AAB ton and a half, dump truck

    www.mapleandhoney.com

  5. #5
    Join Date
    Feb 2013
    Location
    central NH
    Posts
    178

    Default

    Quote Originally Posted by Sapcat View Post
    Approximately how long will it take me to make syrup boiling 120 gallons of sap over a wood fire, in a 2' x 3' X 8" stainless steel pan with temps around 40 degrees F?
    You'll be there a lifetime with a fire at 40 degrees!
    Steve

    2017
    2x8 Mason drop tube evaporator
    420 Taps
    3 surflo pumps on 5/16
    79 gallons of syrup made
    2016
    New kitchen addition to sap house
    400 taps
    52 gallons syrup made

  6. #6
    Join Date
    Jan 2006
    Location
    Oneida NY
    Posts
    11,566

    Default

    Be prepared for an all nighter.
    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.

  7. #7
    Join Date
    Mar 2019
    Location
    Middlesex, Vermont
    Posts
    320

    Default

    I had a 2x4 divided pan and I would make my arch glow. Most I could get was 13gph.

    120/13= 9.25 hours at best. On a 2x3 I’m thinking more around 8-10gph.... Flats might be on to something as usual...


    Sent from my iPhone using Tapatalk
    Mead Maple "It's for the kids..."
    Paul Cerminara
    2019 - First season ever
    -Goal: 3 gallons
    -Season Total: 7.5 gallons - pulled taps after running out of firewood and time
    2020
    Built 2'x8' Oil Fired with Thor drop flue pans
    -Goal: 20 gallons
    -Season Total: 55 gallons

  8. #8
    Join Date
    Feb 2015
    Location
    Aitkin, Minnesota
    Posts
    18

    Default

    Thanks to all who responded. I think I'll plan to boil over two days!

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