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  • Insulated Lunch Bag Buyers’ Guide

    Insulated Lunch Bag Buyers’ Guide
    How to keep lunch warm? The best way to keep your food is by using an insulated lunch bag. An insulated bag has two walls, with a vacuum in-between. There must be a medium needed if to carry the heat absorbed by the inner wall to the outer wall. So, without air, there is no heat that will escape into the surroundings, and the lunch box...