They are typically juicy, rounded, brightly colored, sweet or sour, and do not have a stone or pit, although many pips or seeds may be present. Bursting with flavor their fruity combination of sour and sweet notes makes a delightful berry mix eliquid.

Professor Twisted 200ml e-liquid has a 0mg nicotine strength but the room in each underfilled bottle for four nicotine booster shots. Adding nic shots will increase its strength, for example, mixing four 18mg shots with the short fill will create 240ml of 3mg e-liquid.