(CNN) -- Starbucks is trying something new to cut back on single-use cups.
The coffee giant abandoned its long-standing practice of encouraging customers to bring in their own cups among safety concerns at the start of the pandemic.
The company is using Earth month to launch a new idea.
Its "borrow a cup" program allows customers to use a reusable cup for a $1 deposit.
When the cup is returned, they get that deposit back, plus 10 rewards points.
The cup is then professionally sterilized so it can be used again.
Starbucks says each reusable cup replaces 30 disposable cups.
Right now, the program is only available in five Seattle locations and runs through the end of May.