Biola 'Deep Forest' is a non-toxic and biologically pure fuel with a consistency of liquid, intended for using in bio fireplaces and stoves. Does not emit smoke and is present in pleasant aroma (forest). Fuel harmless to the environment and human. ready-to-use product, non-toxic product with fluid consistency, occurs in the pleasant aroma of coffee and deep forest (particularly noticeable when quenched) enclosed in a sealed package preventing the product from escaping, Shelf life period is 36 months.