--- product_id: 48416037 title: "Thermos Charcoal Ultimate Drinks Flask (900ml) 24h Hot | 24h Cold" brand: "thermos" price: "443.23 DT" currency: TND in_stock: true reviews_count: 13 category: "Thermos" url: https://www.desertcart.tn/products/48416037-thermos-charcoal-ultimate-drinks-flask-900ml-24h-hot-24h-cold store_origin: TN region: Tunisia --- # 24h hot retention 24h cold retention rugged stainless steel build Thermos Charcoal Ultimate Drinks Flask (900ml) 24h Hot | 24h Cold **Brand:** thermos **Price:** 443.23 DT **Availability:** ✅ In Stock ## Summary > 🔥 Stay hot, stay cool, stay unstoppable. ## Quick Answers - **What is this?** Thermos Charcoal Ultimate Drinks Flask (900ml) 24h Hot | 24h Cold by thermos - **How much does it cost?** 443.23 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/48416037-thermos-charcoal-ultimate-drinks-flask-900ml-24h-hot-24h-cold) ## Best For - thermos enthusiasts ## Why This Product - Trusted thermos brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Comfort Grip:** Double-wall insulation keeps the exterior cool and condensation-free for a confident, comfortable hold. - • **Generous 900ml Capacity:** Ideal size for long workdays, outdoor adventures, or sharing moments—carry more, stress less. - • **Smart Spill-Guard Pouring:** Two-part stopper design controls flow and prevents spills, while the wide mouth makes refills and cleaning a breeze. - • **Adventure-Proof Durability:** Robust stainless steel with protective silicone rings means no dents, no scratches, no worries. - • **All-Day Temperature Mastery:** Keeps drinks hot or cold for a full 24 hours—your perfect companion from dawn to dusk. ## Overview The Thermos Charcoal Ultimate Drinks Flask (900ml) features advanced vacuum insulation that maintains your beverage’s ideal temperature for 24 hours hot or cold. Crafted from durable stainless steel with protective silicone rings, it’s built to withstand outdoor adventures and daily hustle. Its double-wall design ensures a comfortable, condensation-free grip, while the smart two-part stopper prevents spills and simplifies pouring. With a spacious 900ml capacity, this flask is the ultimate all-day hydration solution for professionals and adventurers alike. ## Description From the manufacturer Review: Thermos Ultimate beyond compare and a shrewd long term investment an - The Thermos Ultiimate drinks flask unique feature is in its ability to keep drinks scalding hot for 18 hours and hot for 24 hours. I purchased 2 of the smaller size (previous model) one for me and one for my wife about 15 or more years ago and they have never failed to impress on how hot they kept our tea or coffee. They are quite tough and resilient . Unfortunately I dropped mine once too many times , but without blinking instinctively reordered a new one within a heartbeat. Ooops, my eagerness caused me to order the larger 900ml size in error. I will keep it for hot water when we do go out together, as I drink coffee and she drinks Tea. I have already ordered the smaller size ( currently available from TK Max at under £20 and ordered on line for collection tomorrow I can’t wait). Originally I used it for work knowing wherever I was driving to around the country I had a hot coffee to enjoy and even if half drunk a very warm coffee at the end of the day before I started to drive home. I found the smaller size quite adequate to last me throughout the day providing 2 cups of coffee throughout the day. Life without one is almost inconceivable, that is how impressive the Thermos Ultimate flask is. I will keep the larger 900ml size and not return it as even though it is too large for my regular use as I’m sure it will come in useful on the odd but critical situation e.g. Overnight keeping water hot for the morning on a Trip or if I’m in bed unwell a hot drink to hand all day or overnight. It will also be great for cold drinks if going on a picnic or to the seaside with family . It may seem expensive but it truly is a long term investment. 20 out of 10. Review: Elite flask. Performance justifies the price. - Being an outdoor worker in Wales, I've owned a lot of different flasks - including quite a few Thermos ones. ALL of them before this one had a major flaw - once some of the liquid (tea) was consumed, the cold air that replaced the tea cooled the rest down to a tepid temperature within 4 hours. I've always disliked the easy-pour/flip lids (actually, particularly on the standard 1L Thermos flasks - I've had two and on both of them the stoppers gave up within a year), but this double screw one actually works well, and alongside the excellent build quality of this flask, even half full/half empty (to those philosophers out there - they're the SAME THING!!!) it's still piping hot, 8 hours later. I purchased the 900ml 3 months ago, and so far have appreciated its excellence. There's no denying it's expensive, but you get what you pay for - this isn't Thermocafe or standard Thermos, it's an elite well-designed, practical flask. The only downside for me was that I had to cut some rubber off the cup/lid to allow it to fit in my (Iveco Himatic) van's cup holders. I stopped to write this review in the middle of purchasing the 500ml version, for lunch soup. I'd recommend the 900ml version unreservedly, it is seriously the best flask I've ever owned in terms of keeping stuff hot. ## Features - Temperature Control - Advanced vacuum insulation maintains drinks steaming hot or refreshingly cold for 24 hours, letting you enjoy your beverage at the ideal temperature all day long - Rugged Design - Robust stainless steel construction with protective silicone rings withstands drops, bumps, and outdoor adventures while preventing dents and scratches - Comfort Grip - Double-wall insulation ensures the exterior stays cool with hot drinks and condensation-free with cold beverages, providing comfortable handling in any weather - Smart Pour System - Two-part stopper design controls liquid flow and prevents spills, while the wide mouth opening makes filling and cleaning quick and simple - Outdoor Ready - 900ml capacity holds enough liquid for extended adventures, while the lightweight yet durable construction makes it ideal for hiking and camping trips ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B013YMS8RM | | Age Range Description | Adult | | Age range (description) | Adult | | Base Diameter | 8.2 Centimetres | | Best Sellers Rank | 5,648 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 67 in Insulated Bottles | | Brand | Thermos | | Brand Name | Thermos | | Cap Type | Two-piece stopper | | Capacity | 900 ml | | Colour | Charcoal | | Country Of Origin | Malaysia | | Customer Reviews | 4.7 out of 5 stars 3,382 Reviews | | EU Spare Part Availability Duration | 5 Years | | Global Trade Identification Number | 05010576041104 | | Included Components | Lid Cup, Pouring Spout, Protective Silicone Rings, Stainless Steel Bottle, Two Part Stopper | | Is Oven Safe | No | | Is the item dishwasher safe? | No | | Is the item microwaveable? | No | | Item Dimensions W x H | 8W x 30H centimetres | | Item Type Name | Ultimate MKII Series Flask 900ml | | Manufacturer | Thermos | | Material Type | Silicone, Stainless Steel | | Model Name | FFX900 | | Number of Items | 1 | | Pattern | Solid | | Product Care Instructions | Hand Wash Only | | Recommended Uses For Product | Coffee, Soup, Tea, Water | | Recommended uses for product | Coffee, Soup, Tea, Water | | Special Features | Durability,Lightweight | | Special feature | Durability,Lightweight | | Theme | Solid | | Unit Count | 1.0 count | | With Lid | Yes | ## Product Details - **Brand:** Thermos - **Capacity:** 900 Millilitres - **Colour:** Charcoal - **Recommended uses for product:** Coffee, Soup, Tea, Water - **Special feature:** Durability,Lightweight ## Images ![Thermos Charcoal Ultimate Drinks Flask (900ml) 24h Hot | 24h Cold - Image 1](https://m.media-amazon.com/images/I/618DdFWdwpL.jpg) ![Thermos Charcoal Ultimate Drinks Flask (900ml) 24h Hot | 24h Cold - Image 2](https://m.media-amazon.com/images/I/71thE1w2dCL.jpg) ![Thermos Charcoal Ultimate Drinks Flask (900ml) 24h Hot | 24h Cold - Image 3](https://m.media-amazon.com/images/I/81zfSsUA8FL.jpg) ![Thermos Charcoal Ultimate Drinks Flask (900ml) 24h Hot | 24h Cold - Image 4](https://m.media-amazon.com/images/I/71HiamJ22VL.jpg) ![Thermos Charcoal Ultimate Drinks Flask (900ml) 24h Hot | 24h Cold - Image 5](https://m.media-amazon.com/images/I/61oNpUZ9NwL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: I've been an idiot and lost the cup/outer lid of the flask. can I buy spare parts from anywhere? also, will not having the cup/outer lid on reduce the** A: Yes, these are available directly from Thermos. https://www.thermosonline.co.uk/store/Spare-Parts/sc_95 **Q: I have lost the screw in tops for my Thermos. Can any one tell me if these pieces can be attained on their own ?** A: Try https://www.thermosonline.co.uk/store/Spare-Parts/ **Q: i am needing a new screwcap with seal for thermos ultimate 900 as my seal has become loose wondering where to purchase one thanks** A: Flasks online.. I’ve used them to order a replacement cap **Q: How does it pour?** A: Unscrew the 'cork' a few turns then pour (practice over the sink at first) OR for more control, remove the cork completely. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Thermos Ultimate beyond compare and a shrewd long term investment an *by S***R on 21 October 2025* The Thermos Ultiimate drinks flask unique feature is in its ability to keep drinks scalding hot for 18 hours and hot for 24 hours. I purchased 2 of the smaller size (previous model) one for me and one for my wife about 15 or more years ago and they have never failed to impress on how hot they kept our tea or coffee. They are quite tough and resilient . Unfortunately I dropped mine once too many times , but without blinking instinctively reordered a new one within a heartbeat. Ooops, my eagerness caused me to order the larger 900ml size in error. I will keep it for hot water when we do go out together, as I drink coffee and she drinks Tea. I have already ordered the smaller size ( currently available from TK Max at under £20 and ordered on line for collection tomorrow I can’t wait). Originally I used it for work knowing wherever I was driving to around the country I had a hot coffee to enjoy and even if half drunk a very warm coffee at the end of the day before I started to drive home. I found the smaller size quite adequate to last me throughout the day providing 2 cups of coffee throughout the day. Life without one is almost inconceivable, that is how impressive the Thermos Ultimate flask is. I will keep the larger 900ml size and not return it as even though it is too large for my regular use as I’m sure it will come in useful on the odd but critical situation e.g. Overnight keeping water hot for the morning on a Trip or if I’m in bed unwell a hot drink to hand all day or overnight. It will also be great for cold drinks if going on a picnic or to the seaside with family . It may seem expensive but it truly is a long term investment. 20 out of 10. ### ⭐⭐⭐⭐⭐ Elite flask. Performance justifies the price. *by D***H on 3 March 2025* Being an outdoor worker in Wales, I've owned a lot of different flasks - including quite a few Thermos ones. ALL of them before this one had a major flaw - once some of the liquid (tea) was consumed, the cold air that replaced the tea cooled the rest down to a tepid temperature within 4 hours. I've always disliked the easy-pour/flip lids (actually, particularly on the standard 1L Thermos flasks - I've had two and on both of them the stoppers gave up within a year), but this double screw one actually works well, and alongside the excellent build quality of this flask, even half full/half empty (to those philosophers out there - they're the SAME THING!!!) it's still piping hot, 8 hours later. I purchased the 900ml 3 months ago, and so far have appreciated its excellence. There's no denying it's expensive, but you get what you pay for - this isn't Thermocafe or standard Thermos, it's an elite well-designed, practical flask. The only downside for me was that I had to cut some rubber off the cup/lid to allow it to fit in my (Iveco Himatic) van's cup holders. I stopped to write this review in the middle of purchasing the 500ml version, for lunch soup. I'd recommend the 900ml version unreservedly, it is seriously the best flask I've ever owned in terms of keeping stuff hot. ### ⭐⭐⭐⭐⭐ Absolutly Flawless! *by A***S on 17 April 2026* The best flask I never knew I needed. It keeps tea piping hot for literally hours. Very easy to pour from the spout and the fact I don't have to remove the lid altogether ensures drinks will remain hot. The lid feels secure when you twist it shut and does not feel like it will come loose when traveling to ensure it wont leak. With a 900ml capacity, it will keep me going all day without the need for top ups. Love the black and orange colour scheme and although it has protection top and bottom, I bought the official thermos pouch to store it in as the matt black finish is painted. It is just about the right size to fit in most car cup holders and easily fits in my backpacks side pockets. Hoping to enjoy drinking from it for years to come 🤞 ## Frequently Bought Together - Thermos - Charcoal Ultimate Flask (900ml), Reusable Insulated Stainless Steel Thermal Coffee Cup for Hot or Cold Drinks, Vacuum Sealed Water Flask with a Leak-Proof Lid, 24hr Hot/24hr Cold - Thermos - Charcoal Ultimate Flask (500ml), Reusable Insulated Stainless Steel Thermal Coffee Cup for Hot or Cold Drinks, Vacuum Sealed Water Flask with a Leak-Proof Lid, 24hr Hot/24hr Cold --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/48416037-thermos-charcoal-ultimate-drinks-flask-900ml-24h-hot-24h-cold](https://www.desertcart.tn/products/48416037-thermos-charcoal-ultimate-drinks-flask-900ml-24h-hot-24h-cold) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-12*