Evaporation rate question

Discussion in 'General Brewing Discussions' started by Beerbelly, Jan 6, 2018.

  1. Beerbelly

    Beerbelly Member

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    Does the boil evaporation rate change with outside temp.? I have my system dialed in almost perfectly, except for the evaporation rate. I brew outdoors year 'round, and my evap rate seems to change depending on the air temp. I have a mark on my propane regulator that I set to when boiling, so I know the flame is always the same, yet my evap rate seems to vary, especially with colder temps. During colder weather, it appears I am getting a higher evap rate (less wort collected). Any ideas?
     
  2. Ozarks Mountain Brew

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    humidity is more a factor then actual temperature but they both do play a part also the width of the pot or surface area that boils is an area that changes boil off rates
     
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  3. Johnwk

    Johnwk Member

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    #3 Johnwk, Jan 6, 2018
    Last edited: Jan 6, 2018
    I second that, but would also add that wind plays a huge factor as well. I try to brew in a sheltered part of the garage and lean a board up against the burner when it's windy to protect it from the wind.
     
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  4. Nosybear

    Nosybear Well-Known Member

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    Ditto that! I'm moving inside as soon as I can afford a 3500 watt induction burner, a suitable kettle and an electrician.
     
  5. Johnwk

    Johnwk Member

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    What a dream! To me that would be Nirvana!
     
  6. Nosybear

    Nosybear Well-Known Member

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    Want wind, come to Colorado. The only saving grace is the wind weighs 80% less up here.
     
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  7. Ozarks Mountain Brew

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    yeah my family keeps preaching to come up, they live in Denver and love it, maybe some day
     
  8. thunderwagn

    thunderwagn Well-Known Member

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    Come on out! We'd love to have ya.
     

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