>ETA: How do I know what to look for?
In terms of what? The dried fruit? The nuts?
For dried fruit, look for no sugar, no sulfites/sulfur. The best thing to find is dried fruits where the fruit is the only ingredient. They sometimes aren't as pretty as the sulfured dried fruits (for example, dried apricots that have sulfur added are bright orange, those without are darker. But sulfur also allows the fruits to retain more moisture, so you are paying for more water than in the un-sulfured variety. ) (Is there a spell-check here? "Sulphur/sulfur" just doesn't look right to me, and it's bugging me! If it were French, I'd know how to spell it!)
I also get organic if I can find it. It's better for the environment, better for the people who work in the fields, and organic foods often have higher mineral content than non-organic (the vitamin content of foods is about the same no matter how it's grown, but the mineral content depends on the mineral content of the soil.)
For nuts, the same thing: nuts only as the sole ingredient.
Now Foods makes a trail mix with raw almonds, cashews, raisins and a couple of other kinds of nuts. They also have packaged raw nuts (and their prices are pretty good.)