Hi Dee,

I also found double veins in my shrimp and both are the shrimps waste products and both should be removed. Good eating,
Fern

[quote=Dee Randall;747885]Hello,
I purchased a few bags of shrimp that are about 21-30 frozen, Thailand.
They have the outer shell, plus tail and have been de-veined very nicely.

However, on the underside, there is on each and every one of them, a huge
vein. I've never noticed this on shrimp before. The last time I scraped
out all of the veins, but I'm wondering "what's up" with these shrimp; I've
never noticed this before. Dee