This has probably been addressed, but I cannot find a suitable answer specific to my situation. I am new to vaping and have just started to DIY my own juice. I use known recipes from friends and most turn out delicious with little to no TH at all. I mix everything with 60PG/40VG and 6%Nic (Nic is 100%PG and 48mg) as a base for all my juices. The problem is that some flavors that I make turn out with a peppery TH that sends me into coughing fits. Anyone have any ideas as to why?