And next time you attend a birthday party you might also want to reconsider accepting a slice of cake because according to a new study, blowing out candles increases the level of bacteria by a revolting 1,400 per cent.
On average, the study found that blowing out the candles caused the frosting to grow 14 times as much bacteria.
Although the results are shocking, the researchers insist that while the human mouth is full of bacteria, most of them are not harmful and that you should be fine to eat birthday cake if someone has blown out candles.
