I live in a 2 up 2 down house, with no cellar, quite draughty windows, and electric storage heaters (these turn on at midnight and begin to "store" heat which in theory is then released through the following day).
In the middle of the house between the two downstairs rooms is a staircase, which has a larder/cupboard underneath. Temperature in here is probably a fairly stable 18°C in winter / 20°C in summer, probably the most stable temperature, but higher than the alternatives.
I have two timber outbuildings – a shed and a summer house – in which the temperatures can fluctuate throughout the day by 10°C, from e.g. 15°C-25°C in summer and e.g. 5°C-15°C in winter (though there will be periods that exceed these ranges).
I have bottled all my beers so far, with fermentation and carbonation happening in the house, before being moved to the shed.
When it comes to storing beer in bottles, what effects will these temperature fluctuations have on the ageing/conditioning of beer? And is it better to store at a steady but higher temperature, or a lower but fluctuating temperature?