The Complete Handbook of Juice

Chapter 1: Understanding Juice

Juice is extracted liquid from fruit or vegetables—water, sugars, acids, fiber fragments, vitamins, minerals, and other compounds that the plant originally stored in its cellular tissues. This definition sounds simple, but it matters. Juice is not fruit, is not smoothie, is not nectar or fruit drink. Understanding these distinctions is not academic; it affects how you source, price, store, sell, and regulate juice, and what your customer is actually buying.

When you extract juice from an apple by pressing, squeezing, or centrifuging, you are separating the liquid phase from the solid phase. The liquid phase carries sugars, organic acids (citric acid, malic acid, tartaric acid depending on the fruit), vitamins, minerals, and flavor compounds. The solid phase—the pulp—contains insoluble fiber, seeds, skin, and other structural material. Most commercial juice is liquid only, though some products retain pulp for texture or market positioning. A smoothie, by contrast, retains all or most of the pulp, fiber, and solid matter; it is thicker, less shelf-stable, and nutritionally different. A nectar is juice that has been diluted, sweetened, or stabilized to a legal minimum concentration (often 25-50% actual juice depending on the fruit and jurisdiction). A "fruit drink" or "fruit beverage" may contain juice, but often contains added water, added sugars, flavorings, and colorants—it may be 10% juice or less. These are not semantic quibbles. They affect processing cost, shelf life, regulatory classification, tax treatment, and consumer expectation. They are the language your suppliers, regulators, and customers use to negotiate.