Honeybees on comb filled with nectar. The nectar gathered from flowers is watery so once bees fill up the combs they then fan their wings to evaporate the excess water. The honey gets thick and the bees know when it's cured so that they can cap it.
Keeping bees. Beekeeping is a wonderful occupation and hobby. 7 things to consider and two things you need adequate of before owning bees. Here is the "class schedule" of what you can expect to learn in the first years