I used jars forever…. and then grove came out. I still used wide mouth glass mason jars while watching/ reading people using grove bags. I have no idea if long term storage of cannabis with all its terpenes and cannabinoids could react with whatever polymer is being used in the bags. I have seen cannabis terpenes cause ink from a sharpie permanent marker to run, so some terpenes are more reactive than others….
Right now, I use grove bags for the “burping phase” and then into glass mason jars in the dark for long term storage. I think if left too long in the bags, the cannabis will get too dry for my preferences.
A similar issue is coming up regarding METRC tags (a Metrc Tag is a unique, single-use RFID Tag or barcode identifier used to legally track cannabis plants and inventory from seed to sale and the states require their use to stay in compliance). At least 15 states use METRC as their tracking program to trace cannabis from seed to sale both medical and recreational (yellow tags indicate the plant is for medical use, blue tags indicate for recreational use)….. Someone had them independently tested and found out they have lead and arsenic at high enough levels to cause a positive test result indicating presence of at least those 2 substances on the surfaces of the tags