Sushi/nori/yaki paper - out of date? I make a lot of sushi.  But, as I buy the paper/wrapper in 100's, sometimes I do not use it in what might be considered good time.  I have searched and searched the packet for a sell or eat by date but there is none.  Is this OK to use even though I bought it about 8 months ago, and opened it about 6 months ago.  I have made sushi today from it, it seems OK, rolled great and cut brilliantly, but should I be concerned?  The paper is not too dry on the edges and is still a great greeny/blackish color.
According to Still Tasty (a site that looks at USDA, CDC and FDA data), nori lasts 2-4 months in the pantry and 4-6 months in the fridge. Also it says: 


  Store in airtight glass or plastic container or in sealed plastic bag. Refrigerate to extend shelf life.


Still, nori is completely dried. I imagine that the concern beyond that time frame is staleness, not safety.

I have nori that's years old. I would check to be sure that it is somewhat brittle, not leather-like before I used it, but for quality, not safety.