I'm not arguing to be a jerk ... but I do think you can rest assured that minerals and ions, which is what the plant recognizes as nutrients, are unaffected by even pressure-cooker conditions. i think most fish fert is prepared that way. A cold process would be more sparing of mid-to-large-sized molecules, which are quite uninteresting to the plant. Those molecules will decompose in soil, and if they contain any nutrient value, it'll be released in ionic form. I'm calling scam on the cold process ... it exploits our desire to work closer to nature while not really doing so. cn