I have made quite a few kits and have not tried to control the temperature as the yeast does its thing, letting the temp rise as much as it will. I have never had any problems as a result but was wondering if this was a dangerous practice and what could happen. I was also wondering if the taste of the final product is affected by this practice and how would the taste be improved if the temp was kept in the low seventies instead of letting it rise at will. Thanks for any input, Ron.