Has anyone ever tried to make sake by this kit before? I've never made sake myself and wanted to give it a try. This kit claims that you can add your own rice to make a bigger batch. I have a 5 pound bag of rice that I can add. The kit says that the koji and lactic acid are already mixed in with the included rice. The instructions say that all you have to do is add hot water and heat the ingredients up to 100 degrees for 5 to 6 hrs and then keep the fermentation going between 65 and 79F for 2 to 3 weeks. It also says to stir twice a day. This kit seems far easier and less complicated than anything else I've seen, so does anybody have any opinions on this? Is it worth it to try and brew sake this way?