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TAMPON CONTENANT DU CAFÉ TORRÉFIÉ ET MOULU POUR PRÉPARER AU MOINS UNE PARTIE DU CAFÉ D'UNE BOISSON DANS UN DISPOSITIF DE PRÉPARATION DE BOISSON
TAMPON CONTENANT DU CAFÉ TORRÉFIÉ ET MOULU POUR PRÉPARER AU MOINS UNE PARTIE DU CAFÉ D'UNE BOISSON DANS UN DISPOSITIF DE PRÉPARATION DE BOISSON
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摘要
Pad for use in a beverage preparing device comprising an at least partly porous first sheet of flexible material, an at least partly porous second sheet of flexible material, and a bed of coffee particles provided between the first and second sheet. The first sheet forms an inlet sheet at a water receiving side of the pad. The second sheet forms an exit filter at an outlet side of the pad, wherein the bed of coffee particles has a first fluid flow resistance. The exit filter has a second fluid flow resistance that exceeds the first fluid flow resistance. The exit filter is selected to possess a Herzberg water permeability of 300-3500 seconds per 100 ml per 10 cm2 at a pressure head of 50 mm Hg for generating a third fluid flow resistance, in the presence of coffee particles, which exceeds the first fluid flow resistance.
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