If you’ve ever packed a hot lunch for school only to find it’s gone cold by lunchtime, you’re not alone! The good news? With a few simple tricks, you can keep food warm in a food jar until the lunch bell rings, no microwave needed.
Whether you call it a thermos, food flask, or insulated jar, these are perfect for pasta, noodles, soups, curries and more. In this guide, I’ll share my best food jar tips for school lunches, from how to preheat, how much to fill, what foods stay hot longest, and the one mistake to avoid so your child enjoys a warm, comforting meal at school.
Want to put these tips into practice? Choosing the right food jar is key. We’ve tested countless styles and sizes to find the ones that keep lunches hot the longest, and stand up to busy school days.
👉 Shop our range of best-selling food jars here to find the perfect match for your child’s appetite and your lunch-packing routine.
For more food jar lunch-packing inspiration, check out:
