Can you give baby frozen peaches?

My son is teething and hates teethers, so I figured we might as well try frozen fruit. We got him a couple of these.. a href="http://www.walmart.com/ip/Sy-Baby-Safe-Feeder-2-2-Starter-Kit/11974153" rel="nofollow"http://www.walmart.com/ip/Sy-Baby-Saf…/a ..(except the NUK ones) and I was wondering if I could give my son (5 months) the frozen peaches that come in the bags already frozen at the store? I've read on here about people defrosting them and boiling them to puree them but are they okay to just give baby as they are?