How Vacuum Bottles and Mugs Keep Drinks Hot or Cold – and Why They're Perfect Promotional Products
Posted by Tell and Sell Ltd on 9th Apr 2025
Whether you're sipping a hot coffee on a winter morning or staying refreshed with ice-cold water on a summer hike, vacuum bottles and mugs are your everyday heroes. But have you ever wondered how they actually work? And why are they among the most popular promotional products in New Zealand? Let's take a closer look at what makes these insulated drinkware items so effective — and how th
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