The refill granulate with anti-calcification effect filters tap water for ironing, thus extending the service life of Laurastar ironing systems with integrated anti-calcification water filter. The components of the steam generator are maintained with the rust protection effect. For a high steam quality, the granulate unfolds an effective salt protection effect. If it turns brown, it must be replaced. The refill granulate is suitable for all Laurastar ironing systems, for the integrated anti-scale water filter for steam stations and for the external anti-scale filter for ironing water.