Samuel Gawith has changed their packaging. These rectangular tins are now lightly vacuum sealed with an additional plastic seal on the tin. These square tins are not guaranteed to be vacuum sealed. Some of the Samuel Gawith tins we receive from the importer are dented. As a result, some orders of Samuel Gawith tinned blends may contain one or more dented tins. Since square tins historically lose their seal more frequently than round tins, we strongly recommend transferring tobacco from square tins into a mason jar for long-term storage.