I don`t think there is any correlation between milk IgE and chance of passing a baked milk challenge. I have read that 75% of kids who are allergic to milk can tolerate baked milk, so he has a really good chance of passing. Also, I read one study that giving them baked milk increases their chance of outgrowing allergy to unbaked milk, although that does not seem to be true for us. Dd`s cap rast to milk is 0.34 and she still cannot tolerate unbaked. Her tolerance of baked, though, just keeps getting better and better. Last night she was at the Homecoming Dance, and she texted me that they were selling pizza (a place we go to) and could she buy a piece. I texted back and said yes, but stop eating if she has symptoms. When I picked her up, she told me she had no sypmtoms. Never thought the day would come. When she first tried pizza 1-2 years ago, she had symptoms after half a slice. Now she can eat one large slice with no symptoms, or 2-3 slices of pizza with light cheese. It has really opened up her diet a lot. If I had known, I would have done it sooner. Also, her cap rast, which had been sitting at 1.0 - 1.25 for years, dropped when she went on baked milk. Not sure if that is cause and effect or a coincidence.