🥤 Starbucks Korea promotes sustainable sipping using Polygon NFT Consumers are encouraged to bring their own cups in exchange for a reward. On X, formerly Twitter, Polygon Labs, and Sandeep Nailwal have both confirmed the development. Starbucks Korea has confirmed that patrons can earn eco-stamps with each use of a personal cup. The accumulated eco-stamps will be deposited into the user’s Starbucks application wallet, which will be accessible for redemption when purchasing a Non-Fungible Token (NFT). NFTs have been categorized as Basic, Creative, and Artist, among others. Every customer can own only one NFT, which is bought based on how many stamps they have accumulated and redeemed. More details on the process will be made public tentatively in January. The Starbucks application wallet is scheduled to go live next month. A new Tumbler coupon policy will back it.