[destructables]

what is the safest way to contain and store nitroglycerin, and how long of a shelf life would it have depending upon your method of storing it?

[Borek]

http://en.wikipedia.org/wiki/Dynamite

[Arkcon]

what is the safest way to contain and store nitroglycerin, and how long of a shelf life would it have depending upon your method of storing it?

Back in the day when nitroglycerin for blasting was stored in bulk, the safest way to store it was frozen.  Safe being a relative term.  The pills used to help angina sufferers is well diluted with binders, and probaly lasts a few months without weakening.