The adoption of cryptocurrency as a mainstream payment option continues as more businesses add support for digital currencies. Black & White Burger, a French fast food chain with 12 stores in Belgium, has partnered with Lyzi, a French crypto app developer, to add crypto payments. Customers can now pay for their burgers using 70 cryptocurrencies including Bitcoin and Ethereum.

Lyzi’s app connects Black & White Burger’s point-of-sale system to customers’ wallets, allowing them to pay for their purchases. While there is a commission fee for using the app’s services, Black & White Burger bears no risks associated with market volatility as transactions occur at a real-time euro exchange rate. Researcher Louis Larue believes the operation is safe, with the only financial risk arising from the fluctuations in cryptocurrency prices. However, there is also a risk of hacks, fraud, and money laundering.

Black & White Burger sees the adoption of crypto payments as a step towards virtual finance and a marketing strategy to promote its brand. The company launched a new “mystery burger” that customers can purchase using crypto. Mansour Nasr, Belgium franchise head, expects crypto payments to represent 2-3% of the company’s revenue.