Are Dunkin’s 48-ounce drinks selling out?

What’s happening with the new supersized drink

Dunkin’ is testing a 48-ounce iced beverage container in a small number of New England locations, and the response has been immediate: the test cups are drawing big crowds and staff report they’re hard to keep in stock. The package taps into nostalgia for the oversized plastic cups once common at fast-food drive-thrus and gas stations, while also answering two modern consumer impulses—value per ounce and social-media spectacle.

Why the test is resonating

• Novelty: A very large, Instagram-friendly cup is inherently shareable, creating free publicity when customers post photos or videos.
• Perceived value: For people who want a lot of iced coffee or a shared beverage, the cost-per-ounce can feel like a better deal than buying multiple smaller drinks.
• Convenience: Customers who refill throughout the day or bring a large drink to share see practical appeal.

Operational and customer considerations

From the staff perspective, moving a product like this out of test requires thinking through inventory, cup and lid supply, beverage prep throughput, and store layout to accommodate larger containers. For customers, the cup raises questions about freshness (iced drinks can dilute over hours), portion control, and waste if it’s single-use plastic. Dunkin’ will likely watch sales velocity, labor strain, and social-media lift before deciding whether to expand the test.

What this means going forward

A successful test could nudge other quick-service brands to experiment with oversized formats as a promotional tool. But broader rollout would hinge on practical factors: consistent demand beyond the initial viral spike, supply-chain capacity for large-format packaging, and whether the product cannibalizes other menu items or increases staff burden. For now, the testing in a handful of stores is a bet on novelty and value driving short-term buzz.