A filter material has one or more plies of fiber layers, in particular for the production of filter bags and filter cones for infused beverages, the at least one fiber layer containing fibers or microcapsules having phase change material. Paraffinic hydrocarbons can be used as the phase change material.

 
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> Process for the continuous recovery of free tartaric acid from raw materials containing potassium hydrogentartrate

~ 00400