Does this keep the water above 70c* to make baby formula up at intervals during the day?

I haven't measured the exact temperature but it does stay very warm. Particularly if you warm the flask first.

Is there a cup with it?

Hi The screw in top serves as a cup. Hope this helps? Is a fab Thermos...best ever for keeping things hot and though costly..is worth it. I have both the large & small sizes and my brews stay hot all day at work (which is full time) . VJS

Is the outer casing weatherproof?

Yes. Stays hot for an extraordinary length of time too!

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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

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

Product ID: 48416039

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Details

Brand
Thermos
Capacity
500
Colour
Charcoal
Recommended uses for product
Coffee Soup
Special feature
BPA Free Cold

🔥24hr hot retention

❄️24hr cold retention

🛡️rugged stainless steel build

Description

🔥 Stay hot, stay cool, stay unstoppable with Thermos Ultimate Flask!

SMART SPILL CONTROL - Innovative two-part stopper and wide mouth design for spill-free pouring and effortless cleaning.
COMFORT GRIP ZERO SWEAT - Double-wall insulation means no condensation or heat on the outside—comfort in every sip, anytime.
PERFECTLY PORTABLE 500 ML - Generous capacity meets lightweight design—your ideal companion for workdays, hikes, and beyond.
ADVENTURE PROOF DURABILITY - Crafted with tough stainless steel and silicone guards to survive every drop, bump, and outdoor hustle.
ALL DAY TEMPERATURE MASTERY - Keeps your coffee piping hot or your iced tea refreshingly cold for a full 24 hours—no compromises.

The Thermos Charcoal Ultimate Flask is a 500ml insulated stainless steel bottle engineered with advanced vacuum technology to keep beverages hot or cold for 24 hours. Featuring a rugged design with protective silicone rings, a spill-proof two-part stopper, and a comfortable, condensation-free grip, it’s the perfect stylish companion for professionals and adventurers alike.

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E£ 5627

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Product Dimensions	7.2 x 7.2 x 23.6 cm; 290 g
Item volume	500 Millilitres
Care instructions	Hand Wash Only
Dishwasher safe?	No
Batteries required	No
Included components	Lid Cup, Pouring Spout, Protective Silicone Rings, Stainless Steel Bottle, Two Part Stopper

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

Details

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