Sour e-liquid flavours seem to be in popular demand from a lot of our customers that we speak to. While we stock a fair few there is definitely a shortage of these tongue-twisting flavours. Whether the “sour” aspect mimics popular sour candies or zesty fruit and sour fusions, we have put together a list of our 20 best selling sour flavours and will update this every month from the vape liquids we stock.