In Petaluma, California, to-go cups will now be reused all around town

In a new pilot, more than 30 restaurants—from Starbucks to local cafes—are testing to-go cups that will be cleaned and sent back to the restaurants for reuse.

If you buy a latte from Starbucks in downtown Petaluma, California next month, it will come in a reusable cup with a bright purple back—and you’ll see similar to-go cups at more than 30 other restaurants in the city, from the Petaluma Pie Company to KFC.