Is it sanitary to blow out birthday candles?

Is it sanitary to blow out birthday candles?

While blowing out birthday candles on a cake is thrilling for the person with the honor, it’s by no means a sanitary tradition. The cover, obviously, will protect the cake inside from bad breath and stray spit when the birthday person blows toward it.

Why should you not blow a candle on your birthday?

“Blowing out candles can expel virus particles, just like breathing, talking, singing, shouting, coughing and sneezing, if the person is infected,” he said.

Does blowing on food spread germs?

Preliminary tests of blowing on nutrient agar indicated that bioaerosols in human breath expelled from the mouth may be a source of bacteria transferred to cake surfaces. To test aerosol transfer to cake, icing was spread evenly over foil then birthday candles were placed through the foil into a Styrofoam™ base.

What does blowing out the candles symbolize?

Candles on cakes became a popular tradition long ago in Germany, too. For religious reasons, Germans would place a large candle in the center of a cake to symbolize “the light of life.” If all the candles are blown out in one breath, the wish will come true, and the person will have good luck throughout the year.

Is it bad to blow out candles on birthday cake?

A study conducted by the Canadian Center of Science and Education found that in some cases blowing out the candles on a birthday cake can increase the bacteria on the frosting by up to 1,400 percent. “Some people blow on the cake and they don’t transfer any bacteria,” study author and food researcher Paul Dawson told The Atlantic .

How many times does blowing out a candle increase the amount of bacteria?

On average, blowing out the candles increased the amount of bacteria on the frosting by 14 times. But in one case, it increased the amount of bacteria by more than 120 times.

Why are there germs on my birthday cake?

As a grandfather of four, Kay has previously stewed over the fact that invisible germs and respiratory droplets may end up collecting on a cake’s icing after one blows out their birthday candles — and he’s not the only one who has seemingly obsessed over this, either.

Why do people blow out candles on food?

“The transfer of bacteria and other microorganisms from the respiratory tract of a person blowing out candles to food consumed by others is likely,” the study’s authors concluded.

A study conducted by the Canadian Center of Science and Education found that in some cases blowing out the candles on a birthday cake can increase the bacteria on the frosting by up to 1,400 percent. “Some people blow on the cake and they don’t transfer any bacteria,” study author and food researcher Paul Dawson told The Atlantic .

On average, blowing out the candles increased the amount of bacteria on the frosting by 14 times. But in one case, it increased the amount of bacteria by more than 120 times.

Where did idea of blowing out birthday candles come from?

Dawson said the idea for the study came from his teenage daughter. But he’s also conducted a whole set of studies around common questions in food safety with his undergraduate students, as a way of engaging them in original scientific research.

Is there a patent for blowing out candles?

Since doing this study, he’s heard from people who have thought quite deeply about germ-proofing the birthday candle blowing process though. A patent, for example, exists for a “Sanitary birthday cake cover and candle system,” consisting of a cake holder and cover with holes for candles.