As we couldn't get to the studio right away, we stored the seaweed in a lidded container with water in our basement.
Once we were ready to bring it over to the studio we rinsed it off, and put in a large pot with a bit of soda ash to cook for about 2 hours. We checked about every 30 mins. to see how the plant was when we gently tried to pull it apart, and once it started pulling without resistance we figured it was done and ready to be rinsed.
After straining the seaweed we decided to try putting it in our "critter" beater for about 1.5 hours. While there were some stubborn ribbon-y clumps, most of the material broke down well into semi-short fibers. We might have been able to beat the material a little longer to get the fibers to be less clumpy. Next time!
So yes, in the future we'll be doing some things differently with our seaweed papers. Hopefully we'll end up with a more successful end product next time around. Anyone out there got any tips for us? We'd love to hear them!