Mushrooms in a tray come from Spain, specifically the variety with a stem and medium size. They weigh 0.250 kg and are priced at €12.02 per kg. This fungus is one of the most consumed varieties, distinguishing between cultivated (Agaricus Bisorus) and wild (Agaricus Arvensis). It is known for its remineralizing and antioxidant properties, as well as a high water content and minerals like selenium, phosphorus, magnesium, and potassium. Low in calories, making it suitable for weight-loss diets. It is recommended to consume cultivated mushrooms, as they can absorb heavy metals.