When I first encountered Ayurveda’s discussions of fermented beverages, the most striking feature was not a single recipe but the range of distinctions the texts make. The Charaka Samhita does enumerate eighty-four selected asava preparations, but it does not present them as eighty-four grain drinks arranged like a modern pharmaceutical catalogue. In Sutra Sthana 25, the number arises from source materials drawn from grains, fruits, roots, pith or heartwood, flowers, branches, leaves, bark, and sugar. Charaka also states that further combinations of ingredients and processing methods could produce innumerable variations.
The classical literature therefore treats fermentation as both food processing and medicine-making. It distinguishes cereal-derived intoxicating drinks, sour grain ferments, and self-fermented herbal formulations. It also treats alcohol as a substance whose effects change with its ingredients, preparation, age, quantity, timing, accompanying food, the drinker’s strength, and habituation. These are traditional Ayurvedic descriptions rather than modern clinical proof, but they demonstrate close attention to preparation, individual suitability, and the consequences of misuse.
Where the Classical Material Actually Appears
The principal Charaka passages are distributed across Sutra Sthana 25, which enumerates the selected asavas; Sutra Sthana 27, whose Madya Varga compares fermented and sour preparations; and Chikitsa Sthana 24, which discusses appropriate drinking, intoxication, susceptibility, and treatment of madatyaya. The Sushruta Samhita discusses liquid substances, including fermented beverages, in Sutra Sthana 45—not in Sharira Sthana.
| Term | Verified Description | Important Correction |
|---|---|---|
| Asava | A broad self-fermented preparation. Charaka lists several possible source materials and says its effects depend on the ingredients and processing. | The eighty-four selected asavas are not all grain beverages or eighty-four fully standardized modern recipes. |
| Sura | A cereal-derived alcoholic preparation, commonly associated in later Ayurvedic pharmaceutic descriptions with cooked grain and a fermenting starter. | Charaka Chikitsa Sthana 24 does not give the claimed sesame-oil recipe or a universal three-to-seven-day fermentation schedule. |
| Prasanna | The clear upper or supernatant portion associated with sura in Ayurvedic pharmaceutic literature. | It is not simply rice-cooking water left overnight. |
| Arishta | A medicated fermented preparation. In later pharmaceutical usage, the principal herbs are generally first prepared as a decoction and fermented with a sweetening material. | Its therapeutic indication depends on the complete formula, not on fermentation alone. |
| Asava in later pharmacy | Generally prepared without first converting the principal herbal material into a decoction; the exact liquid, herbs, sweetening agent, and fermentation procedure vary by formula. | Defining every asava as fermented raw herbal juice is too narrow. |
| Kanjika or Dhanyamla | A sour fermented cereal liquid described separately from intoxicating grain beverages. | A modern carrot-and-mustard kanji recipe should not be presented as a verbatim classical formula without a textual source. |
Sura and the Meaning of Madya
Madya is a broad term for intoxicating fermented drink, whereas sura is one cereal-derived member of that larger group. Charaka’s Madya Varga separately discusses sura, madira, jagala, arishta, maireya, dhātakyasava, sauviraka, tushodaka, and amla-kanjika. The text describes maireya as sweet and heavy, while dhātakyasava is listed separately and described as mild, dry, and appetizing. Maireya therefore cannot be defined simply as barley fermented with Dhataki flowers.
Charaka states that fresh liquor is generally heavy and liable to aggravate the doshas, whereas properly aged liquor is described as lighter, appetizing, digestive, and channel-clearing. In Chikitsa Sthana 24, madya is assigned ten qualities: laghu, ushna, tikshna, sukshma, amla, vyavayi, ashu, ruksha, vikashi, and vishada. The same chapter warns that alcohol used improperly or excessively can act like poison.
The text also recognizes differences in susceptibility. It describes hungry, thirsty, weak, emaciated, exhausted, angry, frightened, and unaccustomed individuals, as well as those taking little or dry food, as liable to become intoxicated rapidly. Classical Ayurveda consequently does not treat fermented alcohol as a universally strengthening or digestion-promoting substance. Quantity, context, constitution, strength, food, and habituation remain essential considerations.
Asava, Arishta, and the Role of Dhataki
In later Ayurvedic pharmacy, asava and arishta are self-fermented herbal dosage forms. A fermentable carbohydrate source such as jaggery, sugar, or honey supports microbial activity and generates ethanol within the preparation. The self-generated ethanol can assist the extraction of both water-soluble and alcohol-soluble constituents and contributes to preservation. The ingredients, proportions, vessel, duration, and quality-control requirements must nevertheless be taken from the authoritative formula for the individual medicine; a single thirty-day fermentation rule cannot be applied to every asava or arishta.
Dhataki flowers, obtained from Woodfordia fruticosa, occur in many but not all asava-arishta formulations. Laboratory investigations have isolated alcohol-producing yeasts and other microorganisms from the flowers and indicate that this associated microbial community can assist fermentation. It is therefore reasonable to describe Dhataki as a traditional fermentation aid where a formula includes it. It is not accurate to describe the flowers merely as a packet of “fermentation enzymes,” nor does the detection of compounds such as ellagic acid prove a particular clinical benefit in every finished medicine.
Each named asava or arishta remains a distinct formulation with its own ingredients, processing instructions, dose, and traditional indications. Fermentation alone does not make different products interchangeable. Manufacturing quality also matters. An analytical investigation of marketed Kumaryasava and Mustakarishta samples reported variation in measured ethanol values and emphasized the need for appropriate standardization and quality control.
What Modern Fermentation Science Can—and Cannot—Confirm
Fermentation may involve lactic-acid bacteria, yeasts, or mixed microbial communities, depending on the substrate, starter, temperature, time, hygiene, and other processing conditions. It can change acidity, flavour, preservation, nutrient availability, and plant chemistry. However, the word “fermented” does not automatically mean “probiotic.” Scientific consensus reserves the term probiotic for identified live microorganisms that have been shown, in adequate amounts, to confer a health benefit.
- Microbial identity matters: Sour taste, bubbles, or a traditional name cannot establish which species or strains are present, whether they remain alive, or whether they are safe.
- Health effects are product-specific: Findings from one controlled ferment cannot automatically be transferred to sura, kanjika, rice water, or a medicated asava-arishta.
- Nutritional claims require analysis: Fermentation may alter vitamins, starches, amino acids, and other compounds, but it does not guarantee clinically important quantities or effects.
No verifiable 2018 systematic review was located that matched the original claim that traditional Asian grain beverages broadly demonstrated anti-inflammatory, immune-modulatory, and gut-protective effects in humans. Reviews of fermented foods support their microbial diversity and research potential, but evidence for clinical outcomes remains dependent on the particular food, organisms, process, dose, and population studied. Classical terms such as dipana and vata-shamana should not be translated directly into unproven claims about microbiome diversity, intestinal permeability, or probiotic efficacy.
Kanjika Is Not the Same as Every Modern Kanji Recipe
The carrot, mustard, salt, grain, and water recipe supplied in the original article was not verified as a formula from the Ashtanga Hridaya. Classical amla-kanjika, dhanyamla, sauviraka, and tushodaka belong to a vocabulary of sour cereal preparations and are discussed separately. Charaka describes amla-kanjika as sour and attributes appetizing, digestive, and laxative actions to it, while sauviraka and tushodaka receive their own descriptions. A household vegetable ferment may be a legitimate culinary tradition without being relabelled as an exact classical prescription.
Why Overnight Fermented Rice Water Was Removed
The proposed “Prasanna” method—leaving cooked rice water at room temperature for twelve to twenty-four hours and drinking it—was not supported by the cited classical material and introduces a food-safety concern. Cooked rice can contain surviving spores of Bacillus cereus. The longer cooked rice or its starchy water remains at room temperature, the greater the opportunity for bacterial multiplication and toxin formation. Sourness, effervescence, smell, or appearance cannot verify that an uncontrolled household ferment is microbiologically safe.
The claimed 2020 study reporting improved intestinal-flora diversity and reduced intestinal-permeability markers in adults with irritable bowel syndrome after fermented rice water could not be verified in the named journal and has been removed. Without an identifiable paper, authors, DOI, or trial record, it should not be used to support a therapeutic recommendation.
For related reading on Ayurvedic digestive health, see our post on Ayurvedic digestive health. For culinary fermentation, see our post on Ayurvedic pickling and achar preparations. For information about Triphala, see our Triphala complete guide; Triphala should not be assumed to be a necessary companion to fermented preparations unless a qualified practitioner recommends it.
Fermented Ayurvedic medicines may contain self-generated alcohol and should be taken only in the labelled dose under the guidance of a qualified Ayurvedic physician or other appropriate healthcare professional. Avoid alcohol-containing preparations during pregnancy, with alcohol-related liver disease, before driving, or together with medicines that may interact with alcohol unless a clinician has specifically approved their use. Purchase licensed products, inspect the full ingredient and dosage information, and do not replace prescribed treatment with an uncontrolled home ferment.
Actionable tip: Instead of preparing overnight rice-water “Prasanna,” first identify the exact substance being considered. Is it an ordinary food ferment, a historical madya, or a licensed asava-arishta medicine? For a medicinal product, review the complete label, ingredients, dose, alcohol declaration where provided, contraindications, and current medicines with a qualified practitioner. This follows the classical emphasis on substance, processing, quantity, timing, strength, food, and individual suitability without converting an unverified household experiment into therapy.
References
- Charaka Samhita — Yajjah Purushiya Adhyaya
- Charaka Samhita — Annapanavidhi Adhyaya
- Charaka Samhita — Madatyaya Chikitsa
- Easyayurveda (easyayurveda.com)
- Nopr (nopr.niscpr.res.in)
- A progressive review of Sandhana kalpana (Biomedical fermentation): An advanced innovative dosage form of Ayurveda (2011), PubMed Central
- Determination of ethanol content in ayurvedic formulations kumaryasava and mustakarista by gas chromatography (2015), PubMed Central
- Nopr (nopr.niscpr.res.in)
- Isolation, biochemical and genetic characterizations of alcohol-producing yeasts from the flowers of Woodfordia fruticosa (2013), PubMed Central
- Influence of intrinsic microbes on phytochemical changes and antioxidant activity of the Ayurvedic fermented medicines: Balarishta and Chandanasava (2018), PubMed Central
- Preparation of Arjunāriṣṭa Using Microbes Isolated from Woodfordia fruticosa Flowers (Dhayati) (2016), PubMed Central
- Fermented Foods as a Dietary Source of Live Organisms (2018), PubMed Central
- The International Scientific Association for Probiotics and Prebiotics (ISAPP) consensus statement on fermented foods (2021), PubMed Central
- Fermented foods: a perspective on their role in delivering biotics (2023), PubMed Central
- Frontiersin (frontiersin.org)
- Vedotpatti (vedotpatti.in)
- Food (food.gov.uk)
- Sciencedirect (sciencedirect.com)
- Ayush (ayush.delhi.gov.in)
- CDC
- Niaaa (niaaa.nih.gov)
- NHS
This is fascinating. I had no idea the Charaka Samhita went into this level of detail about fermented drinks. My grandfather used to make something with rice and dates during winter and always said it helped his joints. Now I wonder if that was one of these 84 preparations.
Can you point to which edition of the Charaka Samhita covers the full classification? I’ve been working through the Sharma and Dash translation and haven’t hit a section this detailed on fermented beverages yet.
The ethics discussion around these preparations is what gets me. Ancient physicians debating misuse potential feels very modern. Most people assume old medicine was just trial and error without systematic thinking.
I found the breakdown of sura versus maireya helpful especially noting how maireya is described as sweet and heavy
So are any of these preparations still being made by traditional vaidyas? I’m curious whether this is purely historical documentation or whether some of these formulations are still in clinical use in Kerala or Rajasthan.
84 distinct preparations classified with that level of precision is remarkable, but I’d want to see how the therapeutic claims were validated. Fermented beverages produce a whole range of compounds depending on temperature, grain quality, and timing. The reproducibility seems like a major challenge.
My clinic in Jaipur still uses medicated Arishtas which are essentially fermented preparations. They are different from Sura but the underlying principle is the same. Fermentation as a delivery mechanism is genuinely underappreciated in modern formulation.
Does anyone know if the classical texts give any guidance on how long to ferment kanjika for a sour taste versus a medicinal effect
What were the specific contraindications mentioned for these preparations? That part of the description is what I’m most interested in from an integrative care perspective.
I appreciate that the article warns against treating overnight rice water as a safe remedy without checking for Bacillus cereus risk
My father-in-law has been on this approach for four months. His joints are better than they were at 55. He credits fermented and the diet changes together.
The point about asava and arishta not being interchangeable just because they both ferment is something I hadn’t considered before
I’ve seen fermented recommended for everything from sleep to immunity to cognition. Something that’s supposed to do everything usually does nothing particularly well.
I wonder how the ten qualities of madya laghu ushna etc translate into practical drinking advice for different body types
It’s interesting that Charaka lists eighty four selected preparations but stresses they are not a fixed modern catalog
Reading this later and the Fermented Grain Drinks in Ayurveda advice still feels relevant. I would still ask a practitioner before changing medicines.
I liked the distinction between sour cereal ferments like kanjika and intoxicating grain drinks like sura they serve different purposes
Has anyone tried preparing a medicated arishta using a decoction of herbs first as the article suggests and noticed a difference in taste
grew up in a family where my dadima made something with barley every spring and insisted it was medicinal not alcoholic. this explains so much about that practice actually
Reading about the need for quality control in marketed Kumaryasava made me check the label on my bottle more carefully
The mention of Dhataki flowers as a fermentation aid rather than an enzyme packet clarified a lot of confusion I saw online
Are there any active research teams working on documenting and standardizing these preparations? I imagine the oral tradition around their preparation is being lost quite rapidly.
The article’s reminder that alcohol’s effects depend on quantity food and habituation matches what I’ve seen in Ayurvedic consultations
The comparison to a modern pharmaceutical reference is a bit of a stretch. Pharmaceutical references include pharmacokinetic data, dosing curves, interaction profiles. We’re talking about a very different standard of documentation, even if the classical system was sophisticated for its time.
Reading this later and the Fermented Grain Drinks in Ayurveda advice still feels relevant. The timing advice is the part I would start with.
I’d really like to know more about the grain base classifications. You mentioned 84 preparations categorized by grain, but which grains? Rice, barley, millet? And does the therapeutic indication shift significantly by grain type?
The point about specifying which patients should not receive these preparations is exactly what separates classical Ayurveda from the commercial version sold today. nobody selling Draksharishta online is asking whether you qualify for it.
can pregnant women follow this or are there specific modifications? the article does not address that directly
Some of these claims are very strong for what is essentially anecdote-based evidence.
Can someone confirm whether the KSM-66 extract or full-spectrum root works better for this specific issue.
The seasonal adjustment chart is going into my practice journal, exactly what I was missing.
What brand of the extract do you personally use? the market has too many adulterated products.
How do I track whether results are genuine versus placebo effect? any objective markers to watch.
just found this via a google search, is the dosage in section 3 still what practitioners recommend
Good reminder on Fermented Grain Drinks in Ayurveda. The safety notes could be expanded a little.
anyone tried this alongside conventional treatment for the same condition? curious about interactions नमस्ते
The explanation of why classical sources emphasize preparation timing was genuinely new to me.
reading this in 2027, has the guidance here changed based on newer research or clinical reports
where are the clinical trials? referencing classical texts is fine but i need rct data before trying this
late to this post but wanted to ask, is the recommended protocol still current or has anything changed 💯
I came for Fermented Grain Drinks in Ayurveda and this answered the main question. A few more examples would still help.
this is helpful but the lack of citations for the more specific claims is a problem for me
Does this protocol work for people who travel frequently and cannot maintain a fixed daily routine.
I came for Fermented Grain Drinks in Ayurveda and this answered the main question. I would still ask a practitioner before changing medicines.
just started exploring ayurveda after years of allopathy, this is a helpful starting point but a lot to absorb
I came for Fermented Grain Drinks in Ayurveda and this answered the main question. The article avoids making it sound like a quick fix.