Starbucks tests compostable cups, but not everyone's sipping smoothly

• Axios spotted the cups, which feature a flatter lid and sipping hole, at several locations in Minneapolis and St. Paul in recent weeks.

Friction point: The cups, which are made of fiber-based board with a bioplastic liner, have already attracted online gripes from customers who say they get soggy and are hard to sip from.

• "My compostable Starbucks coffee lid is composting as I drink it," one X user wrote.

Between the lines: Minneapolis and St. Paul are among the local cities that have "green to go" ordinances requiring reusable, recyclable or compostable to-go containers.

• A law enacted last year takes the requirement statewide starting in 2032.

What we're watching: Starbucks spokesperson Betsy McManus suggested more design changes could be coming, telling Axios that the chain is "committed to sharing a better cup with our customers soon."

• In the meantime, those who don't like the new to-go options can order their drinks "for here" in a ceramic mug or glass, or bring their own clean, reusable cup when ordering via cashier, drive-thru or mobile pickup.