Pine needle tea is a folk remedy with a surprisingly strong nutritional profile. It’s rich in vitamin C, packed with plant-based antioxidants, and contains shikimic acid, the same compound used as a starting material for certain antiviral medications. People have brewed it for centuries across cultures, from Indigenous North American traditions to Korean and Russian folk medicine. Here’s what the evidence actually supports.
Antioxidant and Anti-Inflammatory Compounds
Pine needles are a concentrated source of polyphenols, a broad family of plant compounds that protect cells from oxidative damage. These include condensed tannins (also called proanthocyanidins), the same class of antioxidants found in grape seeds, dark chocolate, and cranberries. Research published through the American Chemical Society identifies pine needles as “a largely available and underexploited biomass resource” for these active compounds.
The polyphenols in pine needles have demonstrated antioxidative, anti-inflammatory, antimicrobial, and even cancer-chemopreventive properties in lab settings. That doesn’t mean drinking the tea will prevent cancer, but it does mean you’re getting a meaningful dose of the same protective plant compounds found in green tea, berries, and other foods associated with lower rates of chronic disease. Brewing pine needles in hot water extracts a portion of these polyphenols into your cup, though the exact amount varies depending on the species, the temperature of the water, and how long you steep it.
Vitamin C Content
Pine needle tea has long been valued as a source of vitamin C, and this is one of its best-documented benefits. During the 18th century, it was used to prevent scurvy among sailors and soldiers who lacked access to fresh fruit. Fresh pine needles can contain between 3 and 5 times the vitamin C of an equal weight of orange juice, depending on the species and time of year. Needles harvested in winter tend to have higher concentrations, since the tree produces more vitamin C as a natural antifreeze.
A single cup of pine needle tea won’t deliver a megadose, but it’s a meaningful contribution to your daily intake, especially if you’re outdoors, traveling, or simply looking for a caffeine-free alternative to other hot drinks.
Shikimic Acid
Pine needles contain shikimic acid, the precursor compound that pharmaceutical companies use to synthesize oseltamivir, the active ingredient in the well-known antiviral flu medication. Star anise is the most famous source, with a concentration around 8.95% by dry weight, but Masson pine needles contain a notable 5.71%. This makes pine needles one of the more significant plant sources of this compound outside the spice trade.
Drinking pine needle tea won’t replicate the effects of a prescription antiviral. Your body doesn’t convert shikimic acid into oseltamivir on its own. However, shikimic acid itself has shown antiplatelet activity in research, meaning it may help prevent blood cells from clumping together excessively. This is an area of active scientific interest, particularly in cardiovascular health.
Respiratory and Decongestant Uses
Pine needle tea has a long history as a home remedy for colds, congestion, and sore throats. The volatile oils in pine, primarily compounds in the terpene family, are the same reason pine-scented products are used in chest rubs and steam inhalation remedies. Breathing in the steam from a hot cup can help open nasal passages, and the warm liquid itself soothes irritated throat tissue.
These effects are modest and symptomatic rather than curative. You’re not treating an infection, but you are getting temporary relief from stuffiness and throat discomfort, much like you would from any warm herbal tea, with the added benefit of pine’s naturally aromatic oils.
How to Make It Safely
The process is simple. Collect a small handful of fresh green needles from an identified pine species, rinse them, chop or bruise them to release their oils, and steep in hot (not boiling) water for 5 to 15 minutes. Longer steeping extracts more compounds but also produces a more bitter, resinous flavor. Many people add honey or lemon.
Eastern white pine (Pinus strobus) is one of the most popular and widely available species in North America. You can identify it by its soft, thin needles that grow in clusters of five, a helpful mnemonic since “white” also has five letters. The needles are typically 2.5 to 5 inches long. Scots pine, Korean pine, and other common Pinus species are also widely used.
Not all needle-bearing trees are safe. Yew (Taxus) is highly toxic and can be fatal if ingested. Norfolk Island pine and Australian pine are not true pines and should be avoided. If you’re not confident in your identification, don’t guess. Stick to needles from trees you can positively identify as belonging to the Pinus genus.
Who Should Avoid It
Pine needle tea is not safe during pregnancy. Several pine species contain isocupressic acid, a compound that has well-documented abortifacient effects. In cattle studies, this compound caused a 56% decrease in uterine blood flow through prolonged constriction of blood vessels supplying the uterus. Cows fed pine needles containing isocupressic acid aborted within 3 to 10 days depending on the dose. The compound has been isolated from ponderosa pine, lodgepole pine, common juniper, and Monterey cypress.
While the concentrations studied were in large-animal feeding trials, the mechanism of action (restricting blood flow to the uterus) is concerning enough that pregnant women are widely advised to avoid pine needle tea entirely, regardless of the species. People taking blood thinners should also use caution, given the antiplatelet properties of shikimic acid and other pine compounds. And anyone with a known allergy to pine pollen or pine resin should skip it as well.