So my Codefree came in the post today, which really surprised me as only ordered yesterday. Anyway decided I wanted to make sure I could use the thing and see if it was going to be sore. So although it was 3 hours after breakfast and not to I have just done my first test. Reading of 5.1. Not sure if this is good or not as it was 3 hours after food but first test now out of the way. Thatvwas after breakfast of porridge, no sugar added and. Slice of rye bread.