 Grape pumice is studied as a natural source of dyes for textile dyeing, with the optimized dyeing process involving a temperature of 100 degrees celsius, time of 55 minutes, and pH 8. The resulting dyed cotton also reduces chemical oxygen demand, COD, and biological oxygen demand, BOD, 5 in the dye bath. This article was authored by Nareddin Barkar, were for Hadda, Manel Ben-Tichar, and others.