Starbucks and A Twosome Place are the only ones of South Korea’s 10 top coffee shop franchises that are selling tumblers and flasks with replaceable tumbler parts that could help reduce waste.
Most coffee shops offer discounts for bringing in multi-use cups, as part of their efforts the use of paper, plastic, and other disposable materials.
Thus, many customers purchase tumblers at the coffee store to use them to buy drinks.
However, the rubber gaskets for tumblers sold by the coffee shops, which should be replaced regularly, aren’t readily available.
Rubber gaskets maintain the drink’s temperature and prevent the beverage from leaking out.
Many customers end up throwing away their tumblers when the rubber gasket is no longer usable, which defeats the purpose of reducing waste.
As a consequence, most South Korean coffee shop franchises that sell tumblers and flasks but fail to sell replaceable parts, such as rubber gaskets, are creating unnecessary waste.
To overcome ‘greenwashing’ criticism, experts advise the coffee shops to offer rubber gaskets.


Wildfires ignite infection risks, by weakening the body’s immune defences and spreading bugs in smoke
Oil Prices Slip as Middle East Tensions Ease, Heading for Weekly Loss
How the war in Iran is already affecting UK farmers and food production
Google's TurboQuant Sends South Korean Chip Stocks Tumbling Amid AI Memory Demand Fears
Why have so few atrocities ever been recognised as genocide?
What’s so special about Ukraine’s minerals? A geologist explains
Asian Currencies Hold Steady as Dollar Stays Firm Amid Middle East Uncertainty
Oil Prices Climb as Iran Reviews U.S. Peace Proposal Amid Middle East Tensions
What’s the difference between baking powder and baking soda? It’s subtle, but significant
ECB Eyes Rate Hike Amid Iran Conflict-Driven Energy Price Surge
NASDAQ Tech Selloff: Correction or Collapse? What Analysts Are Saying
Glastonbury is as popular than ever, but complaints about the lineup reveal its generational challenge
AI is driving down the price of knowledge – universities have to rethink what they offer
Brazil Meat Exports Weather Iran War Disruptions With Rerouted Shipments
Lake beds are rich environmental records — studying them reveals much about a place’s history
Rise of the Zombie Bugs takes readers on a jaw-dropping tour of the parasite world 



