Material and Insulation:
It is made of stainless steel, often 304-grade, and features vacuum insulation to keep food hot or cold for extended periods (e.g., up to 12 hours hot, 9 hours cold).
Capacity and Portability:
These flasks come in various capacities, like 1.4L or 1.9L, and are designed to be portable with features like retractable handles.
Features:
Some models include multiple containers for separating different food items like soup, rice, and vegetables, making them suitable for picnics, office, or school use.
Usage:
They are designed for convenient carrying of meals and are easy to clean, with some being dishwasher safe.