How to use Hongtashan (Black Fire)
Flavors Express Hongtashan (Black Fire) is a food-grade flavor concentrate for mixing your own e-liquid.
Work out the amounts for your volume, nicotine strength and PG/VG ratio in the DIY calculator.
flavors-express/hongtashan-black-fire
Flavors Express Hongtashan (Black Fire) is a food-grade flavor concentrate for mixing your own e-liquid.
Work out the amounts for your volume, nicotine strength and PG/VG ratio in the DIY calculator.