There are many oak species: some that lose their leaves (deciduous), others that do not lose their leaves in winter (evergreen), the latter in the Mediterranean Basin. The honey can differ from one oak species to another. In Romania and temperate Europe, the so-called English (pedunculate) oak (Quercus robur), whose leaves fall in winter, is the most common species.
Oak honey is one of the most mineralized honey types: it contains a multitude of elements: potassium, phosphorus, sodium, magnesium, iron, sodium, magnesium, and iron. Just like all other types of honeydew honey, oak honey contains fewer sugars than floral (nectar) honey, hence it is less sweet.