I wonder how much of this is correlation with high sugar sauces/candies that just happen to have Red40 vs Red 40 actually causing it. Anecdotal only goes so far. That being said, get that shit outta here for good.

The answer is yes! It depends on the type of material and the goals. For instance, the iPhone 4 was supposed to have a white version on release but it was delayed. Apple eventually blamed the different in heat and UV radiation being different, if I remember correctly. Vague rumors that it messed with the proximity sensor also floated around. This was during the antenna-gate “you’re holding it wrong” era. Could be all BS and there was no formal explanation given.

Most times it probably doesn’t affect very much but manufacturing engineers spend a lot of R&D to make sure it doesn’t by the time things to get to consumers!