How to hull unhulled sunflower seeds

[Salsify]

I got some hulled sunflower seeds I am soaking since last night. I thought the hull could be easily removed, but it don't seem like it. I want to use the seeds in crackers. Thanks

[sport]

I think that you will have to let them sprout. They shed the hulls after they are well sprouted. They are tasty after sprouting.