I just put on two Merlot red wine kits. The yeast was added on top before setting containers in a heated room. Temp got too warm in the room so I left the door open. Two days later the fermentation started but after 3 days I went away for the weekend and the room temp dropped. When I returned 3 days later the yeast had stopped working. I added more yeast to try and restart the fermentation since I thought 3 days Brewing wasn't long enough. Did I do anything wrong by adding more yeast or do you think I've killed my wine kit. Appreciate your thoughts on this. Thanks.....Pat