Pompeii Coffee Beans are first choice and give a persistent and intense aroma. The triple layer pet and pe bags offer an effective barrier against external agents. These, in fact, effectively preserve and protect the grains, guaranteeing a certain resistance especially in the transport phase. A unidirectional degassing valve is applied to all the bags which allows to expel the gases due to the fermentation of the roasted coffee avoiding the entry of the external area guaranteeing a longevity and freshness of the product.