I really want to have a go at sour dough but the instructions are to leave the starter to develop in a warm place.
I don't have an airing cupboard or an aga, we have a combi boiler, so it's only on when someone's running a tap at this time of year. The rest of my house is a fairly even standard room temperature, 19-20 degrees unless it's a very hot day.
Is that "warm" enough?