$500 seems rather excessive to me for something that is mainly presumably a peltier, H-Bridge and MCU along with a bluetooth chip. I currently make beer, but i

$500 seems rather excessive to me for something that is mainly presumably a peltier, H-Bridge and MCU along with a bluetooth chip. I currently make beer, but if I was going to make wine, I'd instead look at sourcing good quality grapes, and just fermenting reasonably cool in a fridge rigged up to a PID. On the topic of artificially aging wine this article is rather fascinating http://people.math.aau.dk/~cornean/index.html/ACwine.pdf http://people.math.aau.dk/~cornean/index.html/ACwine.pdf where they use HV AC to apparently decrease the harshness of un-aged wine. Additionally if you did want to age wine you can get small oak barrels from ebay relatively cheaply.