Unusable in large cans

The tea strainer is too fine mesh for larger quantities. One can at best fill two to three teaspoons. My 1.5-liter jug ​​requires a larger amount of tea; this may be in the filter does not unfold - in the middle of the tea will not even get wet! So the tea filter is only suitable for small Thermos jugs in which a small amount of tea leaves sufficient.