I tested 40 lunch boxes – here are the best in the UK for leaks, looks and sustainability

Tired of squashed sarnies and spilt dressing? From stainless steel to insulated to plastic-free, here are the lunch boxes for kids and adults we rate the most

• The best water bottles

If packed lunches are a high-stakes game in your household (as they are in mine), the right lunch box is crucial. There’s nothing worse than opening the lunch you’ve been looking forward to since 8am to find yoghurt has leaked on to your sandwich and your cucumbers have dried out.

A lunch box may look like a simple bit of kit, but keeping food contained from kitchen to school dinner hall or workplace desk is a surprisingly demanding job. And the humble lunch box has come a long way from the simple plastic tubs that used to contain our clingfilm-wrapped, squashed sandwiches at school. Today, you can find bento boxes with multiple compartments, stainless steel containers, silicone pouches and leakproof designs promising to keep everything from yoghurt to salad dressing safely contained.