Thermos Gobelet isotherme 4002.248.047
(33 reviews)
Made by Thermos, the original inventor of the vacuum-insulation principle, this insulated mug keeps coffee or tea hot for the whole car ride.
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Key features
- Capacity: 0.47 L
- Material: Double-wall stainless steel, vacuum insulation, matte exterior
- Heat retention: 5 hours
- Base fits car cup holders, built-in tea bag hook
In detail: Thermos Gobelet isotherme 4002.248.047
The Thermos 4002.248.047 insulated tumbler carries the name of the brand that gave birth, more than a century ago, to the very principle of vacuum double-wall insulation, now found on countless insulated travel mugs. This tumbler builds on that long-standing technology in a size designed to accompany morning coffee or tea on commutes or business trips.
The stainless steel double wall limits heat loss, with a stated retention of 5 hours for hot drinks and 9 hours for cold, well beyond what a simple cardboard or plastic cup would allow. This thermal performance avoids having to go back to a coffee machine mid-morning to get a drink back to the right temperature. The Drink Lock closure system guarantees a total seal, an important point for use in a car or on public transit where a poorly closed cup would risk spilling under sudden braking.
The lid is fully removable to make cleaning easier, and the top part is dishwasher-safe, while the stainless steel body is hand-washed. A built-in hook also allows a tea bag to be hung directly inside the tumbler, a handy detail for anyone who alternates between coffee and tea depending on the day. Its slim base, 8.4 cm in diameter, makes it compatible with almost every car cup holder, a design choice that makes it easy to fit into the daily routine of car commuting.
Its only real limitation is heat retention that sits at the market average rather than setting a record, next to newer mugs fitted with autoseal-type push-button lids. But for anyone who prefers homemade coffee or tea over drinks bought along the way, this Thermos insulated mug represents a modest, lasting investment, backed by a brand whose name has become synonymous with the vacuum-insulation principle itself.
Technical data
Detailed characteristics
Performance
| Heat retention?How long the container keeps its contents hot. | 5 hours |
|---|---|
| Cold retention?How long the container keeps its contents cold. | 9 hours |
Dimensions and material
| Capacity?Usable volume of the container, in litres. | 0.47 L |
|---|---|
| Material?Main material used to make the container. | Double-wall stainless steel, vacuum insulation, matte exterior |
| Dimensions?Width, depth and height of the container (W x D x H). | 8.4 x 8.4 x 19.8 cm |
| Closure?System used to seal the container tightly. | Leak-proof Drink Lock system, removable lid, top part dishwasher-safe |
Comparison
In the €25 to 40 range, the Thermos 4002.248.047 insulated mug regularly comes up against two names cited in "insulated tumbler comparison" searches: the Contigo West Loop 470 ml and the Stanley Classic Trigger-Action 0.35L. Here is how these three mugs stack up against each other, based on the specifications published by each brand.
| Criterion | Thermos 4002.248.047 | Contigo West Loop 470 ml | Stanley Trigger-Action 0.35L |
|---|---|---|---|
| Capacity | 0.47 L | 0.47 L | 0.35 L |
| Heat retention | 5 hours | 5 hours | 5 hours |
| Cold retention | 9 hours | 12 hours | 6 hours (26h iced) |
| Closure | Screw-on Drink Lock, leak-proof | One-hand Autoseal button | One-hand push button |
| Price observed | €39.06 | ≈ €37 | ≈ €27 |
In summary, the Contigo West Loop leads on cold retention thanks to its one-hand Autoseal closure, a genuine plus behind the wheel. The Stanley Trigger-Action is the most affordable but in a more compact size and with more modest retention. The Thermos 4002.248.047 positions itself as the solid middle ground: generous capacity, a closure proven over decades, and a price that matches its performance.
Our tester's verdict: Yoni Marchal-Laporte
This Thermos mug holds a 4.6/5 rating across more than 4,000 Amazon reviews, a score that has held up over time, and our hands-on time confirms what those reviews describe. The double wall lives up to its promise: coffee poured hot in the morning is still pleasant to drink hours later, without the faint metallic taste sometimes found on mugs with a less careful interior finish. The Drink Lock system closes firmly, with a clear click that reassures before slipping it into a bag or setting it in a cup holder, and its slim base fits everywhere, including narrow slots. The tea bag hook is a clever detail, rarely found on competitors, that avoids removing the lid to check on the brew. Two limitations worth knowing: heat retention, at 5 hours, stays in the segment's average, and only the top part is dishwasher-safe. For daily use in the car or at the office, this is a reliable insulated mug that we recommend without reservation at this price point.
Frequently asked questions: Thermos Gobelet isotherme 4002.248.047
The manufacturer states 5 hours of heat retention and 9 hours of cold retention, thanks to its vacuum-insulated stainless steel double wall. Enough to last a commute without going back to the coffee machine.
Only the top part, the removable lid, is dishwasher safe. The stainless steel body should be hand-washed with warm soapy water to preserve its finish over time.
No, it is fitted with the Drink Lock closure system, which guarantees a total seal once locked, a point confirmed by many customer reviews from people who use it daily on their car commutes.
An insulated mug like this Thermos model is designed to drink straight from the lid and fit in a cup holder, whereas a classic insulated bottle usually favors a larger volume and a screw-on cap with no handle.
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Page published on 1 July 2026, updated on 31 July 2026