Rang Dong’s Vacuum Flask Helps Preserve Vietnam's Tea Culture.
Founded in the early 1960s, the Hanoi-based Rang Dong began as the first factory producing light bulbs and thermos bottles in northern Vietnam. Since then, the company has emerged as the country’s leading manufacturer of vacuum flask products, exporting to more than 20 countries. Rang Dong’s brand has won trust among generations of users, demonstrating its consistent focus on quality and innovation.
The brand’s long history places it at the heart of daily life in Vietnamese homes—especially in the ritual of tea drinking. This cultural significance has shaped the design and function of Rang Dong flasks, ensuring they meet both practical needs and traditional expectations.
Extending tea tradition
In traditional Vietnamese families, tea drinking means a lot. It is not merely about the beverage, but about the experience embraced by aroma, warmth and the lingering flavor.
A key element of making a good tea is ensuring the right temperature for the tea, from the first pour to the last sip. Even small changes in temperature can affect taste and aroma, so proper preservation is essential.
Rang Dong's vacuum flask embodies the quiet soul of Vietnamese tea tradition.
The Rang Dong vacuum flasks employ high-quality stainless steel, vacuum insulation, and smart design features to maintain beverage temperature for hours. Thanks to these features, they preserve the sensory integrity of Vietnamese teas, from fragrant jasmine to robust green blends, so each cup can evoke calm, connection and cultural continuity.
Tradition in modern life
Even as lifestyles become busier and more mobile, the desire to enjoy tea in a meaningful manner remains. The Rang Dong vacuum flasks enable tea lovers to have within reach a vessel that responds to their need, whether at home, in the office, or traveling.
This convenience allows traditional tea rituals to continue without interruption, even in modern daily life.
For decades, the 2-liter vacuum flask model has been a staple in Vietnamese families and a familiar sight in hospitals, tea shops, and homes alike. With a flask in hand, the tradition of tea can remain part of everyday life—adaptive yet rooted.
Innovation, quality, sustainability
Rang Dong’s commitment to quality and modernization strengthens its role in preserving the tradition. The company has invested in high-tech infrastructure, digital transformation, and product innovation to raise competitiveness in a changing world. The improvements translate into the consistent performance and durability for long-term use of each Rang Dong flask.
A next generation, Rang Dong's sleek vacuum flask keeps beverages hot for hours.
For tea culture, the vessels supporting the ritual have become dependable, durable and aligned with modern values, whether in thermal performance, eco-friendly practices or global standards.
Using a Rang Dong vacuum flask also reduces the reliance on disposable containers, contributing to sustainable practices.
Tea moments elevated
Whether brewing delicate tea leaves at dawn or steeping a classic family blend in the afternoon, the right flask makes a difference.
The Rang Dong vacuum flask has now become the bridge between Vietnamese heritage and contemporary convenience. It enhances the tea-drinking experience by maintaining the warmth and flavor of every cup.
Flasks that preserve temperature and taste allow cultural rituals to continue naturally while fitting seamlessly into everyday life. Each tea moment enjoyed with a Rang Dong flask reflects a balance of tradition, quality and convenience.
Should any questions arise or a quotation of Rang Dong products is requested, please send an email to: export@rangdong.com.vn.
Websites: en.rangdong.com.vn and vacuumflask.rangdong.com.vn
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