Originally Posted By: Snagglefoot
Originally Posted By: meep
I used to just mix water, a tbsp of dish detergent and a couple splashes of rubbing alcohol and be done with it. during the summer you could bias towards more water, during the winter more rubbing alcohol. I'm considering going back to it. cheap!
-m
How low do you want to go? For 0 F you would need need 25% methanol.
SF
I'm glad you posted that - since I can't remember the formulas for doing that. Clearly, the homebrew won't be suitable for temps that cold.
What gets us to 24F?