Rhubarb while technically a vegetable is often put to the same uses as fruit, owing to the fact that when ripe it has a very sweet taste with slight sour notes. When used as an ingredient in cooking it is often stewed in sugar or pickled. Originally cultivated in China it was introduced to Russia and eventually Europe where it’s still grown today.
Eliquids generally tend to emphasise either it’s sweet notes by pairing with pastries likes pie, or by combining it with custard and sugar to mimic the popular rhubarb and custard candy. Whatever your preference rhubarb is available in both high VG and high PG ratios, meaning it can be used with a range of vape devices be they built for sub ohm vaping or smaller models designed for new vapers. Those who prefer a sharper vape would benefit most from high wattage vaping if using a rhubarb flavour to emphasise its tart notes; whereas lower wattages will bring out the sweet base note more clearly.