Thermos Flask_1

Thermos Flask_1

1. Present Temperature of the fluid is a mystery

2. Cleaning is difficult (especially the bottom and cap)

3. No Significant material evolution since 1892

4. Becomes heavy when completely filled with fluid

5. No secure grip for firm hold

6. Closing the cap is a conscious effort (properly aligning before turning)

7. Denting when/if it falls is irrepairable

8. Level of fluid cannot be seen

9. water spills out while capping

10. Visually bulky

11. Actual volume is much lesser than assumed volume

12. Volume to length & Volume to width proportion

13. Dead weight is high

14. Prominent after smell of previous beverage (especially milk based)