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Vietnam's favorite traditional thermos offers special features

October 2nd, 2023

The most popular thermos is model RD-2035N3. Vietnamese have been using this thermos for decades, and the device produced by Rang Dong, Vietnam's leading manufacturer of vacuum flask products, often brings pleasant feelings. Let's go through this article to find out why Vietnamese consumers have fallen in love with this thermos.


Vietnam's traditional thermos belongs to a handheld series, excellently suitable for hotels, restaurants, families and offices. Consumers can prepare a big bottle of tea or coffee, then pour the fine drinks into the thermos that can keep it for half a day for a number of people. The two-liter device is ideal to serve 5-6 people.

A sample of Rang Dong's 2-liter vacuum flask, model RD-2035N3.


2 liters 

Heat retention after 6 hrs

≥ 80 ˚C


ABS plastic body, Glass refill



Size (ØxH)./ 12pcs

(625x472x435) mm

Specifications of the vacuum flask model RD-2035N3.


The most noticeable feature of the traditional thermos is its ABS plastic body. ABS is a high-end, expensive, and long-lasting plastic that is used to make the casing of the thermos. It gives the device an elegant look while the colors can bring satisfaction to every customer.

The thermos refill is made of neutral glass, widely known to be safe for food-contact, with silver-coating under state-of-the-art technology of absolute heat radiation. Furthermore, the silver-plating layer is treated in advanced lines to maximize the heat retention of the refill. The thermos can store drinks at more than 80 degrees Celsius for 6 hours or keep cold for 24 hours.

Thanks to the glass refill, the taste of the drinks will not change in the whole day, representing the most impressive feature of the thermos.

Model RD RD-2035N3 from another angle.

Besides, the lid could be used as a cup, which is much more reliable when we carry this one out for outdoor activities such as camping or playing sports.

In order to change the glass refill, simply twist the bottom, then take out the refill and insert the new one. Finally twist the bottom tightly.

This traditional thermos is amazing for users since it passes international standards LFGB and BS EN 12546-1:2000. That means, the flask is totally safe for food hygiene and food contact.

User's guide

It is easy to use this vacuum flask. Firstly, we prepare hot beverages such as coffee or tea, using a coffee maker or tea strainer. Twist open the lid and pour the drinks into the thermos.

Finally, twist the lid again to close.

In order to get the drink, twist open the lid, then pour the drink into cups. Users won't be disappointed over the taste of the drinks as it remains unchanged after long hours in storage.

Please remember to avoid keeping gas drinks and refrain from inserting ice cubes in the thermos as they are harmful to the glass refill.

Should you have any questions or request a quotation of Rang Dong products, please send us an email to: export@rangdong.com.vn.

Websites: en.rangdong.com.vn and vacuumflask.rangdong.com.vn

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