Does it matter where I store the bottles during seeping? In a cooler dark room like a coldroom or upstairs in a cupboard where its warmer.
I store mine in a cool, dark cabinet. Heat, for any
extended period, is not what you want. Cold is not optimal either, but it is not really all that detrimental for your juice.
Personally, I don't believe in "speed steeping," but you can try it if you want. I don't like risking my money/juice when I can just wait. Once you have enough juice coming though your mailbox, you will be able to have plenty steeping all the time.