All the old knife-lid tins were sealed at normal atmospheric pressure, not vacuum packed. Still today, quite a few producers continue with the “old school” method of atmospheric sealing. Vacuum sealing is the new fangled method that is done by producers who rely Pipe Tobacco on assembly line techniques to speed production and reduce costs. Foodsaver type vacuum pumps are quite weak, but they do a very good job of evacuating a great deal of the air from the bags they use [which therefore prevents substantial aging from occuring].
If you live on the edge of the Mojave Desert, you will likely have a problem unless your storage area is humidity-controlled. One thing to keep in mind is that the rubber gaskets used with [wire cage] jars will deteriorate. If opened Pipe Tobacco in Cans after about five years, the re-seal may not be reliable. The current rubber gasket material used for Mason jars seems to be a very durable rubber compound. I have some that are about 20 years of age and they’re still functional.
It may be you will be able to smoke all remaining before the mold gets enough water to wreak havoc. There is a difference between an air tight tin and a vacuum sealed bag with all the air evacuated out. A sealed tin still has a small amount of air left in it. This allows the tobacco to age; the chemical reactions that take place in aging require some air to get going. A plastic bag with all the air removed will not have enough air left for the reactions to start. For bulk tobacco storage mason or Ball [brand] jars with good rubber seals work very well as they are air tight and keep the contents from drying out.
Fit up to 5 sticks inside this lightweight—yet heavy-duty—travel cigar humidor bag that’s preloaded with Boveda 69% RH. Slips easily into a jacket pocket, handbag or cigar case. The Plains Indians were a mobile culture, relying on horses that the Spanish brought with them to the Plains. Being highly aesthetic people, the Plains Indians decorated the bags that they made with designs sewn out of glass seed beads that they got in trade with Anglos who came through their territory. The bags were used to carry tobacco as well as pipes. Note that there is a “doorway” design in the dangles that probably represented something.
In the spirit of true Hobbiton companionship, loading the churchwarden comes with simple ease as the mixture amiably fills the interior of the awaiting bowl. Striking the match, the magical properties of the blend’s true character soon reveal themselves. Categorizing this flair, a deep, dense, and highly complex Pipe Tobacco in Cans string of flavorful notes strike the principal chords of Bag End’s gentle melody. This lovely tune resounds consistently to the completion of the smoking session. Pulling from lush meadows of the Shire, the preeminent nose that springs from the pouch models a succulent aroma of citrusy sweet Virginian grass.