We don't actually know the "recommended" item level, or what ilvl + food + meld + etc. magic numbers Yoshida and Co. are balancing around. He is most assuredly not talking about minimum item level, so... yeah.
Just ballparking I would guess its around min ilvl +10 so about i320 for V1, 325 for V2, 330 for V3, and 335 or so for V4.