RFID Coffee Cup Lets You Pay Without Your Wallet

If you’ve ever fumbled for your wallet or phone while waiting in line at a busy coffee shop, you’re not alone. Paying quickly and conveniently—without the hassle of cards or cash—is a small but real pain point for daily coffee drinkers. One inventor saw an opportunity to streamline that moment, and came up with a surprisingly simple solution.

The answer? A reusable coffee cup embedded with an RFID chip that lets you pay just by placing it on a reader—no wallet, no app, no wait. The inventor, Chris Hallberg, a graduate student at Marquette University, added the tech directly to the cup itself.

What Is the RFID Coffee Cup?

The RFID coffee cup is a standard reusable cup with an RFID (Radio-Frequency Identification) tag welded directly onto it. This chip stores a preloaded balance, and when the customer places the cup on an RFID-enabled payment terminal, the balance is deducted automatically. The entire transaction takes just a tap.

How Did the Invention Come About?

Chris Hallberg, a grad student at Marquette University in the United States, developed the RFID coffee cup as a way to simplify the payment process for coffee drinkers. He welded an RFID tag directly onto the cup, allowing users to load money onto the chip. To pay, they simply tap the cup on a compatible reader. This removes the need to dig out wallets or phones during a busy coffee run.

Where Is It Being Used?

The RFID coffee cup system was purchased by Stone Creek Coffee, a coffee chain based in the Milwaukee area. The shop buys the cups from Hallberg for $15 each, with $5 already loaded onto the chip. This helps speed up service while giving customers a ready-to-go payment method built right into their cup.

Why Is It Considered Eco-Friendly?

The RFID coffee cup contributes to sustainability efforts by reducing the need for disposable paper cups. Stone Creek Coffee has been able to move away from single-use paper cups thanks to the system, encouraging customers to reuse their RFID-equipped cups. This small change helps save trees and cuts down on waste.

Frequently Asked Questions

What is an RFID coffee cup?

An RFID coffee cup is a reusable cup embedded with a Radio-Frequency Identification (RFID) chip that allows customers to store money on the cup and pay for drinks by tapping it on a reader, without needing a wallet or phone.

Who invented the RFID coffee cup?

The RFID coffee cup was invented by Chris Hallberg, a graduate student at Marquette University in the United States.

How much does the RFID coffee cup cost?

Stone Creek Coffee purchases the RFID coffee cups from the inventor for $15 each. Each cup comes with $5 preloaded onto the RFID chip.

Which coffee shop uses the RFID coffee cup?

The RFID coffee cup is used by Stone Creek Coffee, a coffee chain located in the Milwaukee area.

How does the RFID payment system work?

The RFID chip in the cup holds a balance. When the cup is tapped on an RFID reader at the coffee shop, the payment is processed automatically and the balance is reduced accordingly.

Is the RFID coffee cup environmentally friendly?

Yes, the RFID coffee cup promotes reusability and has helped Stone Creek Coffee reduce its use of paper cups, contributing to environmental sustainability.

Recommended FrontStreet Beans for Cupping & Testing

For coffee shops experimenting with contactless tech like the RFID cup, bean quality matters more than ever. FrontStreet’s Ethiopia Yirgacheffe offers vibrant citrus and floral notes ideal for pour-overs paired with digital orders. Their Brazil Queen Manor brings smooth chocolate and nutty balance, perfect for espresso drinks with quick turnover. Both beans highlight how great extraction meets smart service—key when streamlining the customer experience. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.