Our frank. juices are clear and contain no fruit or vegetable pieces or peel residue. The juicer separates the solid from the liquid plant components and only the concentrated form of vitamins, minerals and nutrients ends up as juice in the frank. bottle. bottle as juice. A smoothie, on the other hand, is "smooth" because other plant parts of the raw materials are also processed. Although the proportion of fibre is much higher in a smoothie, this is not the purpose of consuming it as part of a juice cleanse, which is intended to relieve your digestive tract and body! In addition, smoothies often contain sugar, colourings, preservatives or enzymes as ingredients alongside fruit and vegetables - which is certainly not what ends up in our juices.