Korean Expat Community for National Disasters

How long do you actually use your tumbler? Over the past few years, we’ve constantly seen messages encouraging us to use reusable products instead of disposable ones, especially tumblers. In South Korea, this message is everywhere. Coffee shops offer discounts if you bring your own tumbler, and schools or public institutions often promote them by giving them away as gifts or souvenirs. Among many eco-friendly products, tumblers seem to be the most strongly promoted. But here’s the question I want to ask today: Are we focusing on the right thing? Most people focus on how often they use their tumbler. But I think we should be asking a different question — how long we use one. If we truly want to reduce our environmental impact, using a tumbler is not enough. We need to use the same tumbler for a long time. Let me give you an example. Many people receive new tumblers from events, brands, or promotions. Some even buy new ones regularly because of design, trends, or convenience. But producing a tumbler requires resources like stainless steel, plastic, and energy. This production process already creates carbon emissions. So if someone replaces their tumbler every month, are they really helping the environment? Honestly, probably not. In fact, studies suggest that a reusable cup needs to be used dozens, sometimes hundreds of times to actually offset the environmental cost of producing it. If we keep switching to new tumblers, we may be creating more waste instead of reducing it. This is where I think our perspective needs to change. Instead of asking, “Did I use a tumbler today?” we should ask, “How long have I been using this one?” Using one tumbler consistently for years is far more meaningful than collecting many and using each of them only a few times. In South Korea, recycling systems are quite advanced, and people are encouraged to separate waste carefully. However, even with good recycling systems, reducing consumption in the first place is more effective than recycling after. So the real solution is not just switching from disposable to reusable products, but changing our habits and mindset. Next time you pick up your tumbler, think about this: It’s not just about using it today — it’s about how long you will keep using it. Because in the fight against climate change, consistency matters more than frequency. Thank you for listening.