Well, I've been trying to get a sourdough starter going. I follow all the instructions from a couple different good sounding sites. Just never got it going. All of the sites just say to let it sit on the counter at room temperature. Did that with every one. Then, I found another today that actually defined "room temp" as 75 to 85 degrees. Hmph. I bought a cheap thermometer and checked a variety of places in the house trying to find something that warm. Nothing over 70. Not even on top of the fridge. Then, the light bulb went off. I have a separate small water heater that serves only the kitchen sink. I set the thermometer on top of that and my heart almost stopped! 75 degrees! What got me to searching yet again for a solution was forgetting about a failed attempt for a couple of days. When I saw it, it was bubbling quite nicely. Apparently, my house is too chilly and it just took about twice as long to get any reaction. I'll be feeding it this afternoon and placing it on the water heater to see what happens. My only question at this point is will a lack of light cause a problem? It's under the sink so there's no light. I'm thinking it should be fine since starters sit in a fridge for quite a while. Many thanx.