faber
Well-Known Member
Some questions for the amateur (or professional) physicists or chemists out there, a category that includes any experienced homebrewer.
1. Boil-off: Is this affected by outside (ambient) temperature and/or altitude?
2. Wort-cooling: As outside temperature decreases, does the wort-cooling time also decrease? (I seem to remember in physics class that boiling water doesn't freeze faster than 10°C water if placed in the same sub-freezing atmospheric conditions, despite what common sense would have one believe. Not sure if/how the same principle applies here.) (NB: I don't have a wort-chiller, but I have a lot of deep snow in the yard.)
3. Boiling temperature: Water boils at 201°F where I live. If a recipe calls for a 60, or 90, minute boil, does that mean simply boiling, or does that mean boiling at sea-level temperature? What accommodation, if any, do I need to apply to boiling time?
Info: I live at about 5100'. We have some arctic cold coming in for a few days, and I was hoping to get out after dinner some time soon and take advantage of the sub-zero temps for the (possibly?) quicker wort-cooling. I'd like to get a really good cold break. In the spring I will get a wort chiller, but for now I don't want to mess with hoses in these temps.
It's fun to put on a Carhartt "wind bag" and sit there and drink/brew beer. It's like ice fishing, but it smells better.
TIA
1. Boil-off: Is this affected by outside (ambient) temperature and/or altitude?
2. Wort-cooling: As outside temperature decreases, does the wort-cooling time also decrease? (I seem to remember in physics class that boiling water doesn't freeze faster than 10°C water if placed in the same sub-freezing atmospheric conditions, despite what common sense would have one believe. Not sure if/how the same principle applies here.) (NB: I don't have a wort-chiller, but I have a lot of deep snow in the yard.)
3. Boiling temperature: Water boils at 201°F where I live. If a recipe calls for a 60, or 90, minute boil, does that mean simply boiling, or does that mean boiling at sea-level temperature? What accommodation, if any, do I need to apply to boiling time?
Info: I live at about 5100'. We have some arctic cold coming in for a few days, and I was hoping to get out after dinner some time soon and take advantage of the sub-zero temps for the (possibly?) quicker wort-cooling. I'd like to get a really good cold break. In the spring I will get a wort chiller, but for now I don't want to mess with hoses in these temps.
It's fun to put on a Carhartt "wind bag" and sit there and drink/brew beer. It's like ice fishing, but it smells better.
TIA