Westword
Audio By Carbonatix
Dear Stoner: I had a fifteen-year-old beer this week; it was disgusting, but it wasn’t harmful. Is weed the same? Does it go bad to the point of being unhealthy, or does it just taste bad? YouTube
Mahriar 
Dear Mahriar: Like beer, cannabis can be contaminated by various pathogens and bacteria that can cause undesirable tastes and potentially harmful health effects; it’s also affected by moisture much more than beer. So instead of being sealed for one-time consumption, like a bottle or can of beer, cannabis is usually kept in plastic bags and jars and frequently exposed to fluorescent lighting and sunlight.
Even so, cannabis is easily susceptible to mold, rot, dryness and THC deterioration. Mold and bud rot can be very unhealthy for the respiratory system when consumed, especially in concentrate form. But if you store weed like you would beer in a cellar – sealed and in a dark, dry and cool area – then your flower should last a year without going bad, and it can last even longer in the fridge if sealed correctly.
When news happens, Westword is there —
Your support strengthens our coverage.
We’re aiming to raise $50,000 by December 31, so we can continue covering what matters most to this community. If Westword matters to you, please take action and contribute today, so when news happens, our reporters can be there.
Send questions to marijuana@westword.com.