The candles on top of birthday cakes are safe to eat.

Birthday candles are processed on the basis of ordinary candles, and their main ingredients are natural carnauba wax and food coloring. The products produced by the burning of birthday candles are water and carbon dioxide, which are known to be harmless to the human body. So it is safe to eat.

Expanded Information:

Natural carnauba wax is a kind of vegetable wax prepared from plants through a complex process, which is an excellent material for candles.

Chinese name? Carnauba wax

Appearance White-light yellow flake

Melting point ? Greater than 56 degrees

Main constituent elements ? Carbon, Hydrogen, Oxygen

Food coloring is a type of pigment, i.e., a food additive that can be consumed in moderation to change the original color of food to a certain extent. Food coloring is also divided into natural and synthetic, just like food flavorings.

References:

? Baidu Encyclopedia - Food Colors