So, I'm in PEI which has an abundance of Irish Moss this time of year due to storms at sea and nice winds coming into shore. You can pick the stuff up right on the beach. I cleaned it and rinsed it several times and then dried it in the sun. I plan to chop it up later before adding it to the boil to increase the surface area on the fibers when rehydrating it in the boil.
If I understand the process of creating the collagen by soaking the moss, then mixing that with the wort to create a flocculant to clear the wort, then most of what is posted in this thread makes sense. I wonder why a liquid or paste form of the collagen isn't offered for home brewers since that's what the cosmetics and toothpaste industries use. Seems to me the rehydration and boil time could be reduced. Anyone had any experience using natural moss right out of the sea? Am I missing an important step other than getting it super dry prior to packing it into baggies for the freezer?