Truffles are a type of mushroom. According to their inner and outer appearance they are divided into three groups: black, red and white.
According to the season, the truffles are winter or summer. More valuable and more expensive are the winter ones, but they are much harder and in much smaller quantities.
Classification of truffles is also made by size, with bigger ones being more valuable. They are also graded by quality, depending on size, injury or worm.
The most precious of all is the smell of truffles, their aroma, which is specific to every different species.
It should also be known that there are poisonous truffles.