Bees use honey for different purposes, including as a source of carbohydrates for energy, to feed the young bees, and to store food for the winter months when there are fewer flowers from which to collect nectar. Honey is made from nectar, which is collected by worker bees and stored in their special honey stomach, where enzymes begin to break down the complex sugars into simpler ones that are less prone to crystallizing. Once the worker bee returns to the hive, forager bees pass the nectar to each other from mouth to mouth, and younger workers pack the nectar into hexagon-shaped cells in the honeycomb that are made of beeswax. The bees then fan the nectar with their wings to encourage evaporation, which reduces its water content to around 18% and turns it into honey. Honey is also the winter food for adult bees, providing them with the carbohydrates they need to survive and produce heat, as they do not grow or repair themselves. Additionally, pollen, often called “bee bread,” is the bees’ main source of protein, which is necessary for hive growth and young bee development.