Ok this is a topic ive found intersting over the past few months... The term cinnamon is slightly vague ...
To put it in lamens terms.. theres more then 1 type of cinnamon on the market and depending on the type used YES it will crack certian plastics / polycarbonate plastics...
With that said there is the big HOWEVER... There are cinnamons on the market that will not crack the very same plastics..
For example... My tfa flavoring " red hots " in approx 20 drops to 40ml of 100% PG 24MG nic has not cracked a polycarbonate tube in over 4 weeks of use.. * personal experience *
It really depends on the type of cinnamon used.. be it Cinnamaldehyde or .. ??? Im honesly not sure the other oil's but theres at least 7 different extracts from cinnamon bark..
Your best option is to ask the vendor for a 100% guarantee that whatever cinnamon flavor they sell WILL NOT crack any plastic tube tanks.. if they cant assure you or refuse to answer DONT purchase there flavors...
it should be mentioned there are other flavorings such as wintergreen pepermint.. some fruit flavors.. so on that can and will Frost/crack plastic..
If its REALLY a huge concern of yours i would look into GLASS tanks or STEEL if those are an option for you
Hope ive helped a little!!



