When I went to Miami a couple weeks ago for the Coconut Cup and visiting my folks, I acquired a Browning propane dual burner from my dad. This morning I hooked up a propane tank to it, filled my new 4-gallon Polar Ware pot with 3 gallons of water, and lit the wick on the burner to get a boil going. It took about as long to get the water cold from the tap to boiling on the gas burner as it would for warm, freshly lautered wort to boil on the electric stove.
Once the boil started rolling, I turned the regulator down to just a touch below medium, strong enough that it still kept a strong rolling boil but wasn't just blowing through propane. I started a one-hour timer and stepped away. Once the timer beeped, I turned off the gas, and checked the level of water that boiled off. To my surprise, a whole gallon had boiled off in that hour. On the stove top, usually I'd see half a gallon boil off over the course of an hour (with either of my pots).
Is this boil off rate typical for gas burners?
Gas burner, stainless pot, and boil-off rates.
Moderators: BlackDuck, Beer-lord, LouieMacGoo, philm00x, gwcr
Re: Gas burner, stainless pot, and boil-off rates.
That being said, on a really windy day like I had when I brewed last weekend, the boil off rate slows way the heck down. This also changes my efficiency outcome because more water is left in the pot than I predicted.
Re: Gas burner, stainless pot, and boil-off rates.
Yup...pretty normal boil off rate. I use a turkey frier burner and my boil off rate is 1.55 gallons per hour.
ANTLER BREWING
Drinking
#93 - Gerst Amber Ale
Conditioning and Carbing
Fermenting
On Deck
Drinking
#93 - Gerst Amber Ale
Conditioning and Carbing
Fermenting
On Deck
Re: Gas burner, stainless pot, and boil-off rates.
Agreed 1 to 1.5 gallons is about normal.
Naked Cat Brewery On Tap
Re: Gas burner, stainless pot, and boil-off rates.
Excellent. Thanks, guys! I knew I could get a quick reply from y'all 