Grapefruktjuice

Grapefruktjuice is the juice derived from grapefruits (Citrus × paradisi). It is commonly sold as either fresh-squeezed or pasteurized juice and is available in 100% juice form or from concentrate. In Danish markets, the term grapefruktjuice is used for the product.

The juice is produced by pressing the fruit sections to extract juice, followed by pasteurization to extend shelf life. Some products are made from concentrate, where water has been removed during processing and later added back. Storage conditions vary by product, with many varieties sold refrigerated and some shelf-stable when unopened.

Grapefruit juice comes in colors from pale yellow to pink and red. Pink and red juices are usually sweeter and less bitter than white varieties, which are more tart. The flavor and aroma depend on the fruit variety, ripeness, and processing method, and can range from bright and refreshing to more intense and tangy.

Nutritionally, grapefruktjuice provides vitamin C and potassium, and is typically low in fat and protein. It contains natural sugars and calories that depend on portion size. Some products are labeled as 100% juice without added sugars or flavors, while others may contain added ingredients or be blended with other fruit juices.

Grapefruit juice can interact with certain medications by inhibiting intestinal enzymes that metabolize drugs, notably CYP3A4. This can raise blood levels of some medications, such as certain statins and calcium channel blockers. People taking medications should consult a healthcare professional before regular consumption in large amounts.

In food and beverage contexts, grapefruktjuice is consumed at breakfast or as a mixer in cocktails. Unopened juice should be refrigerated and used by the date on the package; after opening, it should be kept refrigerated and consumed within several days.