 preferably from 0.0 to 00% by weight, more preferably from 0.0 to 0.0% by weight, most preferably from 0 to 0% by weight, based in each case on the polymer. The content of residual monomers in the water-absorbent polymer particles prior to the coating with the surface-postcrosslinker is in the range from 0.00 to 00% by weight, preferably from 0.00 to 00% by weight, more preferably from 0.0 to 00% by weight, even more preferably from 0.00 to 0.0% by weight, most preferably from 0.0 to 0% by weight, even most preferably from 0.00 to 0.0% by weight. The moisture content of the water-absorbent polymer particles prior to the thermal surface-postcrosslinking is preferably from 0 to 00% by weight, more preferably from 0 to 00% by weight, most preferably 