According to the card, this is a herbal tea from fireweed (ivan tea) with a strawberry note; the short description says it is made by GFD technology – granulation, fermentation, drying – and brews quickly. The card gives no comparison with ordinary loose-leaf fireweed tea; the exact composition and method of preparation are given on the packaging.
General information (not a manufacturer's instruction): the statements about a strong infusion and a lasting taste are the manufacturer's description.