Shelf life of bloom nutes

Just curious, I have some bloom nutes left over from last years grow. Does it lose its potentcy after this long? Should I just go get some fresh stuff?

i've known people to use nutes for years.. as long as its a moderately temp room with decent humidity you should be fine.. i mean, most people buy their nutes in bulk and it takes a few years just to use them up.. i never heard of fertilizer losing potency.. i know over years it sure doesn't lose the smell