Does meth expire at one point?

[Hugs For Drugs]

I'm planning on keeping some hidden until 2 months from now

Is there a way to measure the expiration date of a certain shard??

 

[Layered Onion]

Keep it cool, dry, air tight, and in the dark. You will not notice any deterioration of quality over a 2 month period.

 

[Isnortice91]

Keep it in a metal container. In a dry place not too hot. Place the metal container in a pants pocket that you are not wearing.