I would like to run a few brews back-to-back to build up a stock of beer. However, I would not be able to store all of the bottles in my house and would be forced to place them in the garage. My garage does not have any electricity and therefore no heating.
Do I need to protect my beer from freezing if the temperature gets to about -10°C (14°F)? And if so, what is the way to do this? Preferably without going out and buying a paraffin heater.