Lemongrass Tea: Easy Batch Brew for a Week in the Fridge

Answer: You can batch brew lemongrass tea by gently simmering fresh lemongrass in water, cooling it quickly, and storing it in a clean, covered container in the refrigerator. Many people use about one stalk per cup of water and keep the unsweetened tea chilled for up to several days, discarding it if the smell, color, or taste changes.Source - USDA.govSource - FDA.govSource - Nutrition.gov

"For homemade herbal teas, treat them like other cooked foods: refrigerate promptly and use within a few days for best quality and safety." – Maria Lopez, MS, RDN, food safety dietitian, quoted in an evidence-based food safety review.

One large review on foodborne illness prevention notes that keeping prepared foods refrigerated at or below 4 °C may greatly slow bacterial growth and reduce risk of spoilage-related illness.Source - NCBI.NLM.NIH.gov

A large jar of freshly brewed lemongrass tea cooling on a kitchen counter with lemongrass stalks nearby

Key terms

  • Lemongrass (Cymbopogon citratus): Aromatic grass used in teas and cooking.
  • Herbal infusion: Water extract made by steeping soft plant parts.
  • Decoction: Gently simmered preparation for tougher stems/roots.
  • Batch brew: Preparing a larger volume of tea to store and use later.
  • Food spoilage: Quality changes from microbes or enzymes; may signal safety issues.

Context: why batch-brew lemongrass tea, and common issues

Fresh lemongrass pieces next to a saucepan where lemongrass tea is gently simmering

Lemongrass tea has a bright, citrusy aroma and may feel refreshing hot or iced. Many people like to batch brew a pot on the weekend and enjoy it from the fridge over several days.

Because this is an unsupervised, homemade drink, the main concern is not flavor but food safety. Like any cooked, water-rich food, brewed tea may support microbial growth if left at room temperature too long or stored too long in the fridge.Source - FDA.govSource - USDA.gov

There is no single official rule specific to lemongrass tea, so home cooks usually apply general cooked-beverage guidance: cool quickly, refrigerate promptly, keep it cold, and discard if it seems off.

Framework: batch-brewing lemongrass tea for fridge storage

Glass bottles of chilled lemongrass tea stored on a refrigerator shelf

Choose and prepare your lemongrass

Use fresh, aromatic stalks that feel firm, not slimy or dried out. Trim off any browned outer layers and the root ends, then rinse under running water.

Most home recipes use roughly one stalk per cup of water, adjusting to taste.Source - AfricanBites.comSource - AgileTestKitchen.com You can lightly crush the stalks with the side of a knife or a mallet to help release flavor.

Brew a strong base for the week

Because you will be diluting with ice or water during the week, consider making the tea a bit stronger than you would for a single cup.

  • Add the chopped or crushed lemongrass to a pot with cold water.
  • Bring to a gentle boil, then lower heat and simmer around 10–15 minutes for a decoction-style brew.Source - AgileTestKitchen.comSource - AfricanBites.com
  • Taste a cooled spoonful; if you want more intensity, continue simmering a bit longer.
  • Optional flavor add-ins (added during simmer): a few slices of fresh ginger, a strip of citrus peel, or a couple of mint sprigs.

Once the flavor suits you, turn off the heat and let the lemongrass sit for another 5–10 minutes before straining if you like a deeper infusion.Source - TheWanderlustKitchen.com

Cool quickly and store safely in the fridge

Food-safety guidelines suggest cooling cooked liquids promptly to limit time in the “danger zone” (roughly room temperature).Source - FDA.govSource - USDA.gov

  • Strain out the lemongrass pieces.
  • Transfer the hot tea into several smaller, heat-safe containers to cool faster.
  • Let it stand until no longer steaming, then move it to the refrigerator.
  • Keep containers tightly covered to reduce contamination and flavor loss.

Many people aim to use homemade, unsweetened herbal teas within several days for quality and safety, similar to other cooked beverages.

Serving throughout the week

Once chilled, lemongrass tea may be enjoyed straight from the fridge or over ice.

  • For iced tea, pour over ice cubes; you can also freeze some of the tea itself as ice to avoid dilution.Source - AfricanBites.comSource - AgileTestKitchen.com
  • For a gentle spritz, mix half tea and half sparkling water in your glass.
  • You may add a slice of lime or a few mint leaves just before drinking rather than flavoring the entire batch.
  • Sweeten portions individually with honey or sugar instead of sweetening the whole jar, which may affect shelf life.

Always sniff and taste a tiny sip first. If you notice cloudiness, a fermented smell, or unexpected sourness that is not from citrus, it is safest to discard.

Tips, tweaks, and common mistakes

Avoid the most frequent batch-brewing frustrations with a few simple habits.

  • Too weak? Use more stalks or simmer a little longer rather than boiling hard, which may dull the flavor.
  • Too bitter or grassy? Shorten the simmer time or remove very tough, older outer layers before brewing.
  • Off flavors after a few days? Consider smaller batches and keep the tea toward the back of the fridge, where the temperature is colder and more consistent.Source - USDA.gov
  • Leaving it out overnight? Food-safety agencies advise discarding perishable foods left out more than a short window; consider brewing a fresh batch instead.Source - FDA.gov

For a busy week, you might brew a slightly concentrated base and dilute it in your glass with cold water or ice. This can save fridge space while still giving you quick access to a refreshing drink.

Who should NOT use lemongrass tea regularly

  • People who are pregnant, may become pregnant, or breastfeeding should talk with a qualified clinician before drinking lemongrass tea regularly, because human safety data for concentrated herbal use are limited.Source - NCCIH.NIH.gov
  • Anyone with chronic conditions, especially liver, kidney, or heart problems, or those taking regular medications, should ask a healthcare professional before using herbal teas daily, because plant compounds may interact with medicines or underlying conditions.Source - NCCIH.NIH.gov
  • People with known allergies to lemongrass or related grasses should avoid it and seek immediate care if they notice symptoms such as difficulty breathing, facial swelling, or hives after exposure.
  • Children and older adults, who can be more vulnerable to dehydration and foodborne illness, may need extra caution with any homemade beverages; their caregivers may want to get personalized guidance from a clinician.

Conclusion: a simple ritual you can personalize

Batch brewing lemongrass tea may fit beautifully into a weekly rhythm. You simmer a pot once, cool it mindfully, and then have a bright, citrusy drink waiting for you in the fridge.

Consider starting with small, unsweetened batches, tracking how long the flavor stays pleasant in your own fridge, and adjusting your routine from there. That way, your batch brew becomes a reliable ritual rather than one more thing to worry about.

FAQ: lemongrass tea batch brew

How long can I keep lemongrass tea in the fridge?
Many people treat homemade herbal tea like other cooked beverages and use it within several days when refrigerated promptly and kept cold, discarding it earlier if the smell, color, or taste changes.Source - FDA.govSource - USDA.gov

Can I use dried lemongrass instead of fresh?
Yes. Dried lemongrass is usually more concentrated, so you may start with a smaller amount by weight and adjust to taste. Because dried products vary, consider checking any label suggestions, and always store dried herbs in a cool, dry place.

Is lemongrass tea caffeine-free?
Plain lemongrass tea made only from the plant and water is naturally caffeine-free. If you mix it with green or black tea leaves, the final drink will contain caffeine from those teas.

Can I sweeten the whole batch?
You may, but many people prefer to sweeten individual servings. Adding sugar or honey to the entire container can change flavor over time and may influence how long they feel comfortable keeping it.

Can I freeze lemongrass tea?
Yes. Freezing in ice-cube trays is a simple way to extend storage and make iced tea without dilution. Once frozen, move cubes to a freezer-safe bag or container to reduce freezer odors.

Safety and sources

Homemade herbal drinks can feel simple, but they still benefit from careful food-safety habits and realistic expectations. They are not medical treatments and should not replace individualized advice from a qualified healthcare professional, especially if you have chronic conditions or take regular medications.

Key safety guidance about cooling and refrigerating prepared foods, including beverages, comes from:

If you are unsure how lemongrass tea fits with your medications, allergies, or specific health needs, consider bringing this routine up with your doctor, pharmacist, or a registered dietitian before making it a daily habit.


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