Procter & Gamble thinks it’s unlocked the future of the $25 billion laundry industry. Meet the Tide evo tile, a waterless detergent pod

Not since your apartment’s post-Halloween-party-sequined load has your laundry machine seen this much excitement. Procter & Gamble’s Tide is beginning a nationwide roll out of waterless detergent squares, an innovation it believes is the future of the $25 billion laundry care market.

No plastic or liquid. The product, known as Tide evo, is about the size of your palm, and the plain white tile has six different layers of woven fibers made from cleaning materials. The fibers dissolve...