I have a stick of organic cow butter, 7 g of blue dream, and a glass full of water all up in my crock right now. I have had it on the low setting for about 3 hours now. My question is should I be concerned if the low setting is hot enough to see bubbles? Everyone says just turn your crock on low and set it and forget it and whatknot...but I really would like to clarify that my low setting is not too hot if it is bubbling/lightly simmering. we are talkin like one or two bubbles every 10 sec..it also has a 'warm' setting below 'low'. should i flip it down to that??