nsulated food storage containers are designed to store hot or cold food safely over several hours by reducing heat transfer through proper insulation and food‑safe materials. In India, these are regulated under IS 17569:2021 (“Insulated Containers for Food Storage”), which mandates that containers (up to 20 litres capacity for domestic use) maintain specific temperature retention standards, use inner lining of food‑grade stainless steel (Grade 304), and have durable, corrosion‑resistant exteriors (plastic, stainless steel or combinations).
So when choosing one, make sure it’s BIS‑certified under IS 17569, has food grade inner materials (preferably SS 304), strong sealing lids, good insulation (vacuum or foam), capacity suited to your need, durable outer shell, and good retention performance (for how many hours).