Interesting, the vinegar. I once got a batch of nic base that had a nutty background and was terrific with coffee. My palate adjusted promptly and quickly and it was over quickly. Somehow reminded me perfectly of a Marlboro +coffee match.Try adding 1 x drop of malt vinegar per 10ml of oxidized nicotine liquid. I don't think I've ever been so close to my once beloved Marlboro brand. I add .5 drop of Tiramisu per 10ml to my morning mix RY4...![]()