I am keen to make my first loaf of sourdough bread and I started the starter last Monday with 1 cup of flour and 1 cup of warm water. Everyday except for maybe 2 days I have thrown out half and replenished with 1/2 cup flour and 1/2 cup warm water. Well it is 8 days now and I don't know if it is because it is too cold but I don't see any expanding or bubbling. My question is, do I continue to leave it out of the fridge doing the toss and replenish every day until I get these bubbles or do I put it in the fridge and do a weekly toss and replenish? I just wish this house was a little more insulated so that it would be warmer than 15 degrees in here.