I do not think the soap is such a factor. The tabs I use are environmental friendly. I.e. no phosphates, no palm oil, no chlorine. The wrapper dissolves in the

I do not think the soap is such a factor. The tabs I use are environmental friendly. I.e. no phosphates, no palm oil, no chlorine. The wrapper dissolves in the machine (an algae-based polymer similar to what is used for capsules to deliver meds). The packaging says: 15-30% bleaching agent based on oxygen. <5% non-ionic surfactants phosphonates, enzymes (protease, amylase), perfume