These food flasks are perfect for all your on the go needs! The team at Plastic Freedom have been using these for month so we just had to stock them!Box Appetit products are a great alternative to single use plastic! Why? In as little as 15 uses, you’ll begin to offset the environmental impact it took to create your food flask! A 400 ml / 13.5 fl oz vacuum insulated pot that is 100% leakproof and will keep your food hot for 6 hours or cold for 8 hours.