Lemongrass
Juice

One pound of lemongrass (approximately 454g) yields roughly 155–205ml in a cold press or masticating juicer — about 5–7 oz. In a twin gear juicer with good stalk contact, you can reach 180–225ml. Centrifugal yields are substantially lower: typically 70–115ml from the same pound.

The low yield relative to weight is expected — lemongrass is a dense fibrous stalk, not a high-moisture vegetable. The juice it does yield is intensely concentrated and aromatic, which is why most recipes use 1–3 stalks as a flavoring addition to other produce rather than juicing it in large volumes on its own.

Juicing lemongrass to a full 8 oz cup on its own would require roughly 35–55 fresh stalks (approximately 800g–1.1 kg) in a cold press juicer — which is not a practical approach. Lemongrass is typically used as a 1–3 stalk flavoring addition in a blended juice.

For a combined juice (lemongrass + cucumber + celery + ginger, for example), 2 stalks of lemongrass contribute about 15–30ml of highly aromatic juice to the blend. If you want a lemongrass-forward drink, a traditional simmer-and-strain method with water extracts its essential oils more efficiently than mechanical juicing alone. For planning a blend with specific quantities, use the calculator.

Five fresh lemongrass stalks weigh approximately 100–150g depending on thickness. In a cold press or masticating juicer, expect 35–65ml of juice — roughly 1.2–2.2 oz. That concentrated amount is potent: enough to flavor 1–2 liters of blended juice or to take as a small daily shot diluted with water.

Prep matters considerably here. Crushing the stalks with the back of a knife before feeding them into the juicer breaks open the cellulose cells and can improve extraction by 20–30% compared to uncrushed stalks.

More than almost any other produce, lemongrass yield is prep-dependent. The tough outer sheaths and fibrous inner core resist mechanical extraction — pre-crushing with a mallet or knife handle, removing outer leaves, and chopping into short 1–2 inch pieces all meaningfully increase what your juicer can pull out.

Stalk freshness matters too: fresh young stalks with more moisture yield noticeably more than dry or older stalks. Cold stalks from the refrigerator extract less than room-temperature stalks. The type of juicer makes a large difference — twin gear machines with slow, grinding action handle fibrous material far better than centrifugal models, which essentially can't extract lemongrass efficiently without pre-processing.

Yes — more than for most produce. Because centrifugal juicers extract such a small fraction of lemongrass, the juice you get from them is less concentrated and has more oxidation-related nutrient loss from the high-speed spinning.

Cold press and twin gear juicers extract more juice and preserve heat-sensitive compounds better. Lemongrass's key active compound, citral, is volatile and aromatic — slow, low-heat extraction retains more of it than centrifugal processing. The nutrition values on this page reflect cold press yield; centrifugal juice will be lower in total mineral content per cup simply because less total juice is extracted.

No — lemongrass is extremely low in sugar. The raw stalk contains roughly 1–2g of natural sugar per 100g, and the concentrated juice (at about 40% yield) sits around 2–3g per 100ml. For comparison, carrot juice has about 9g of sugar per 100ml.

The dominant nutritional story in lemongrass juice is minerals — particularly iron (16mg per 100ml juice, roughly 90% DV) and manganese (10.5mg per 100ml, well over the daily value). This makes it one of the most mineral-dense juices by volume, even though it's used in small amounts. The flavor profile is intensely citrusy and herbaceous rather than sweet.

Lemongrass juice is sharp, citrusy, and aromatic — like a concentrated blend of lemon zest and ginger with a grassy herbal note. On its own in quantity it can be overwhelming and slightly astringent. In a blend, it adds brightness and complexity.

It pairs well with cucumber, celery, pineapple, ginger, and coconut water. The citral compound that gives it its lemon scent complements mildly sweet or cooling produce. A common working ratio: 1–2 lemongrass stalks per 400–500g of base produce (cucumber or celery). Ginger is a natural pairing — both are fibrous rhizome/stalk ingredients with overlapping prep techniques and flavor profiles.

This is a real concern worth taking seriously. Lemongrass contains compounds that may stimulate the uterus and promote menstrual flow — which is why it has traditionally been used to induce menstruation and why most herbal safety organizations classify it as "use with caution" during pregnancy.

Small culinary amounts (a few slices in a curry or broth) are generally considered low-risk. Concentrated juice — especially as a daily shot or large-volume addition — is a different matter. Most healthcare guidance advises pregnant women to avoid medicinal amounts of lemongrass. Consult your provider before incorporating lemongrass juice into a regular routine during pregnancy.

Remove the tough outer sheaths — these are the dry, papery layers that won't juice well. Cut off the woody top third and the root base. What's left is the tender lower stalk (the white-to-pale-green portion), which holds most of the juice and flavor.

Before feeding into the juicer, use the flat of a heavy knife or a kitchen mallet to crush the stalk lengthwise. This breaks the cell walls and significantly improves extraction efficiency. Cut into 1–2 inch pieces for masticating and twin gear machines. For centrifugal juicers, pre-crushing is essentially mandatory — without it, the blades simply can't grip and extract the fibrous material effectively.

Lemongrass juice is potent and the citral compounds are volatile — refrigeration slows oxidation but doesn't stop the aroma from fading. Freshly extracted juice is best used within 24–48 hours.

Since lemongrass is typically used in small volumes as part of a blend, the practical shelf life question is usually about the full combined juice. Blended juices with lemongrass last 48–72 hours in an airtight container under refrigeration — after that the lemongrass notes fade and the other produce flavors dominate.