- Just my experience:
I was storing some Gawith in Mason jar’s and some opened tins in zip lock Mylar bags. It’s been about a year. I found the ones I kept in the bags to not loose flavoring. The Black Arabica i stored in a jar mostly smells like silky dark with a hint of coffee. Elmo’s reserve and Madagascan same thing. No where near where it used to be. Don’t really understand how that happened. As for the unflavored stuff they still are great.
From now on I’m keeping all Gawith in tins in Mylar bags
The electric tape idea is a great tip. Thank you