I regularly take lunch to work which requires a leak-proof container. The food doesn't necessarily need to be kept hot or particularly cold. An example meal would be a bean salad.
I am struggling to find a container that is leak proof. The container will be upended and shaken (not too much!) when in transit from home to work. The container will ideally have a wide mouth to allow me to eat directly from it.
Have you got any suggestions for a suitable container of capacity approximately 500 mL (17oz)?