Refridgeration around 40F is fine. If you went by the Health and Safety regulations here, for food establishments anyway, our inspectors want to see a fridge temperature of 2-5C or 36-41F. Freezer temperatures should be around -18C (+/-2C) or 0F. Much colder than -18C for extended periods will lead to freezer burn, especially with meat.
Last edited by FlyingOnceMore; Aug 17, 2008 at 6:18 pm