Description
The Milton Optima 500 is a compact vacuum-insulated Thermosteel flask (often categorized as a "flask mug") specifically designed for portability and versatility.
Key Features
- Insulation: Features double-walled vacuum technology with an internal copper coating to maintain temperatures for up to 24 hours (cold) and 12–18 hours (hot).
- Material: Constructed from high-grade 18/8 (SS 304) food-grade stainless steel, making it rust-proof, durable, and safe for beverages like tea, coffee, or juices.
- Unique Lid Compartment: Features a specialized storage compartment in the lid for carrying small essentials like sugar cubes, medicines, or tea bags.
- Leak-Proof Design: Equipped with a secure screw-type lid that prevents leakage, allowing it to be safely carried in bags or backpacks.
Specifications
- Actual Capacity: While marketed as 500 ml, the usable capacity is typically listed as 460 ml to 470 ml.
- Dimensions: Approximately 7.4 x 7.4 x 21.4 cm.
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Weight: Approximately 359 grams.
Usage & Care
- Cleaning: Hand wash only with mild detergent is recommended; it is generally not suitable for microwave use.
- Versatility: Its wide-mouth design facilitates easy pouring and makes it suitable for liquid foods like soup, dal, or sambar.
- Pre-Conditioning: For optimal results, pre-rinse with hot water for hot drinks or cold water for cold drinks for 2–5 minutes before use.



