The Chemistry of Honeycomb Candy
The carbon dioxide is produced when baking soda (sodium bicarbonate) is added to hot syrup. It is the same process used to make some baked goods rise, except here the bubbles are trapped to form a crisp candy. The holes in the candy make it light and give it a honeycomb appearance.3
Adding the sodium bicarbonate (NaHCO3) to the heated sugar mixture causes the bicarbonate of soda to essentially break down and release carbon dioxide. Now the syrupy solution will bubble up at a rapid rate.
Comments: