The whole phragmites process is time-consuming. It's not bad...just slow. First I boil the cuttings for 2-3 hours. Then I rinse it all and chop it in a blender. Then I boil it again for another 2-3 hours, rinse again, and then finally I chop it once more until it becomes a fine, consistent pulp.
Picture 1 - cuttings after one boil. Picture 2 - cuttings after a boil and one time through the blender.
Picture 3 - cuttings after a boil, a blend, another boil, and a final blend.