This evening I tried it in the Miele W1986 at 190F and it does not blow up at high temperatures with STPP. The 1986 went into the first spin directly after the wash with no foam generated by the Tide. By the second rinse there was a layer of suds one bubble high so it is rinsing out well. I tried to update the earlier thread but was not able to do so. I apologize for starting a new thread for a former topic. Anyway, the Powder Tide HE Turbo is what I had hoped it would be.