Sprout Maker Jar · Kitchen · Living Food
The seed was never dead. It was only waiting for water.
A glass-and-steel sprouting jar built around the one thing that matters most for a clean, healthy batch at home: water that never sits still.
Glass body · Stainless steel mesh lid · Angled drip stand
Rs. 499
MRP
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4–20×rise in vitamin C documented during germination
3–5days from dry seed to harvest for most kitchen sprouts
2–3×daily rinse & full drain — the core safety habit
0metal-to-food reactions: glass & steel are inert
02 · Key benefits
Everything a good batch needs, and nothing it doesn't.
Every sprouting guide names the same two enemies — standing water and stale air. Each part of this jar exists to remove one of them.
Drains fully in one motion
The stainless mesh lid lets you rinse and empty the jar without opening it — and without losing a single seed down the sink.
Angled stand, zero pooling
The stand holds the jar tilted mouth-down, so leftover water runs out instead of collecting around the seeds.
Glass & steel, fully inert
Non-reactive materials don’t leach into food during days of continuous moist contact — unlike copper or aluminium.
See every sprout, every day
A clear body shows mould, discolouration or standing water the moment it appears — the daily check food-safety guidance recommends.
Constant airflow
Open mesh keeps air moving between rinses, so the batch never stays sealed and damp — the condition that invites rot.
Consistent batch after batch
Remove waterlogging and stale air, and each seed gets the chance to reach its full natural length — reliably.
What sprouting gives you: sharply more vitamin C, minerals your body can actually absorb, and protein broken into free amino acids. What this jar gives you: the conditions to grow it cleanly.
03 · Why a sprout maker?
The problem, in simple terms
Most home sprouting happens in a bowl with a damp cloth over it. It works — until it doesn't. The difference between a crisp batch and a sour one is almost never the seed.
1
Water sits still
A bowl can’t drain. Water collects at the bottom, starves seeds of oxygen, and they begin to rot instead of grow.
2
Warm + wet = bacteria
The same warm, moist conditions that make a seed sprout are ideal for any bacteria on it to multiply. Stagnant water makes it worse.
3
The wrong vessel
Copper, aluminium and plain iron are reactive. Days of moist contact is exactly when food-safety guidance says to avoid them.
| What raises risk | What reduces it |
|---|---|
| Stagnant water pooling at the base | Full drainage after every rinse |
| Infrequent rinsing, sealed or covered containers | Rinsing 2–3 times a day with open airflow |
| Seed not sourced or tested for sprouting | Tested sprouting seed |
| Batches left out instead of refrigerated | Prompt fridge storage once harvested |
The pattern behind 46 US sprout-linked outbreaks (1996–2016)
FDA and UC Davis guidance — and what this jar is designed to make easy
The honest promise
No jar can guarantee a sprout is contamination-free. What good design can do is make the single most effective home practice — full, easy drainage — something you do consistently without thinking about it.
04 · How it works
Water in, water out, air through.
Glass body — Inert, non-reactive and fully visible so you can easily see the growth of your sprouts. Sprouts — Air circulation on all sides helps seeds germinate evenly and grow healthy and fresh sprouts. Angled stand — Holds the jar at the perfect angle for effective drainage and air circulation. Mesh lid — Stainless steel mesh lets water drain out easily while keeping the seeds inside. Drip tray — Collects the drained water to keep your kitchen clean and dry.
What happens inside the jar
1
Dry seed
Dormant — alive, but enzymes switched off.
2
Soaked
Water absorbed (imbibition); enzymes wake up.
3
Germinating
Starch, protein and phytic acid are broken down.
4
Sprout
Root, then shoot. Rinse, eat or refrigerate.
Amylases
Break stored starch into simple sugars.
Proteases
Break stored protein into free amino acids.
Phytases
Break down phytic acid, which blocks mineral absorption.
One rinse cycle · about 30 seconds
1
Fill
Pour fresh lukewarm water straight through the mesh lid.
2
Swirl
Gently swirl to wash every seed and loosen hulls.
3
Tip & rest
Drain completely, then set back on the angled stand.
05 · Benefits backed by research
What sprouting does — and doesn't — do
Sprouting is credited with a lot. Here is what the published research actually supports, rated by how strong and consistent the evidence is.
Vitamin C rises sharply
Dry legumes hold almost none. A review of 300+ germination studies found sprouting raises vitamin C 4- to 20-fold; mung bean and pigeon pea sprout studies confirm it.
Finney 1982; Riddoch 1998 · Read the study →
Minerals become more absorbable
Phytase breaks down phytic acid — which locks up iron, zinc and calcium — in one study to undetectable levels by the final sprouting stage.
Vayupharp 2013; Urbano 2006 · Read the study →
Protein becomes easier to use
Stored protein is broken into free amino acids. Dry-weight protein rises somewhat, but amino acid balance stays close to the original seed.
Vanderstoep 1981 · Read the study →
Folate: it depends
Niacin, choline and biotin increased; folic acid decreased in the legumes studied. Some grains show a rise — the effect isn’t uniform.
Vanderstoep 1981 · Read the study →
Sprouts are not a B12 source
B12 is made only by bacteria and archaea. No plant, sprouted or not, synthesises it. Use fortified foods or a supplement.
Norris, RD; Mangels, RD · Read the study →
Drainage reduces risk
Full drainage and 2–3 daily rinses are the most effective home practices against pathogen growth in sprouts.
UC Davis via MSU Extension · Read the study →
Full citations and study links are listed in the Clinical Studies section. Sprouting benefits come from germination itself; the jar provides the growing conditions.
Strength of evidence at a glance
| Vitamin C | Strong, consistent rise |
| Mineral bioavailability | Well-documented rise |
| Protein (dry-weight) | Modest, seed-dependent |
| Folate | Mixed |
| Vitamin B12 | No evidence |
06 · Why choose Tattwas?
Designed from the research, not the other way round.
Stainless steel mesh lid
Fine enough to hold small seeds like alfalfa, open enough to drain the whole jar in seconds and keep air moving.
Clear glass body
Chemically inert, odour-free, and transparent — so you check your batch by looking, not guessing.
Angled stand & tray
The fix extension guides recommend for soggy batches: residual water runs out of the mouth and into the tray.
How it compares
| Feature | Tattwas Jar | Bowl & cloth | Plastic tray sprouter | Copper / metal vessel |
|---|---|---|---|---|
| Drains without opening | Yes | No | Yes | Varies by design |
| Prevents water pooling at base | Yes | No | Varies by design | No |
| Non-reactive for multi-day moist contact | Yes | Yes | Yes | No |
| See mould or standing water instantly | Yes | Varies by design | Varies by design | No |
| Continuous airflow between rinses | Yes | No | Yes | Varies by design |
| Easy hot-water wash, no hidden seams | Yes | Yes | Varies by design | Yes |
| Research-backed usage guide included | Yes | No | No | No |
Why glass and steel, not copper
Copper has a real place in Tattwas’s drinking-water range. Sprouting is different: FDA guidance says copper shouldn’t contact food below roughly pH 6, and a sprouting jar holds food in continuous moist contact for three to seven days. For that job, inert materials are the food-safe choice.
07 · How to use
Five steps, three to five days.
1
Soak
Add seeds and three times their volume of clean, lukewarm water. Soak overnight (see the table for timings).
2
Drain
Next morning, tip the jar mouth-down through the mesh lid until no water is left at the base.
3
Rinse
Rinse with fresh lukewarm water and drain completely, 2–3 times a day for the whole growing period.
4
Rest at an angle
Return the jar to its stand, tilted, in a warm spot (around 21°C) out of direct sun.
5
Harvest & chill
At the desired length, rinse one last time, drain, and refrigerate. Use within about a week.
Before your first batch
Wash the jar, lid and stand in hot soapy water.
Buy seeds sold and tested for sprouting — never garden seed, which may be fungicide-treated.
Quick checks
- Sour or yeasty smell? Discard the batch — don’t rinse it away.
- Patchy growth? Usually drainage — increase the tilt.
- Hard-coated beans? May need 24–36 h soaking. Tiny mucilaginous seeds like cress: don’t soak.
Sprouting timetable
| Seed | Soak | Rinses / day | Harvest in | Length |
|---|---|---|---|---|
| Mung bean (green gram) | 8–12 h | 2–4 | 3–5 days | 1–2 in |
| Chickpea (chana) | 8–12 h | 2 | 2–5 days | ½–¾ in |
| Whole lentil (masoor) | 8–12 h | 2 | 3–5 days | 1–2 in |
| Alfalfa | 5–8 h | 2 | 3–5 days | 1–2 in |
| Fenugreek (methi) | 8h | 2 | 4–6 days | 2–3 in |
| Wheat (gehun) | 8–12 h | 2 | 2–3 days | tail visible |
| Broccoli | 8h | 2–3 | 4–5 days | 1–2 in |
Starting ranges from seed-grower instructions and university extension guidance. Adjust for your seed lot and climate; follow your seed packet when unsure.
09 · FAQs
Questions we hear most
Does sprouting really make seeds more nutritious?
Some things change a lot (vitamin C, mineral absorption), some modestly (protein), and some are mixed (folate).
Which seeds can I grow in it?
Mung, chickpea, whole lentil, alfalfa, fenugreek, wheat, broccoli and most common sprouting seeds.
Is it safe to eat sprouts raw?
For healthy adults, raw sprouts grown carefully are widely eaten, but they carry a documented foodborne-illness risk. Good drainage reduces it; nothing eliminates it. Blanch briefly for an extra margin.
Who should avoid raw sprouts?
Per FDA and CDC advice: children, the elderly, pregnant women and anyone immunocompromised should eat sprouts cooked, not raw.
Do sprouts contain vitamin B12?
No. B12 is made only by bacteria and archaea. Use fortified foods or a supplement, especially on a plant-based diet.
Why not a copper sprouter?
Sprouting means 3–7 days of moist contact. FDA guidance advises against copper contacting food below about pH 6. Glass and steel are inert.
How often do I rinse?
2–3 times a day, draining fully every time. In hot, humid weather, lean towards three.
My batch smells sour. Can I save it?
No — discard it. An off smell means spoilage has already developed; rinsing won’t fix it.
How do I clean it?
Hot soapy water between every batch. Let the jar and lid dry fully before starting again so mould spores aren’t carried forward.
How long do sprouts keep?
About a week refrigerated, after a final rinse and thorough drain.
Why does the jar sit at an angle?
So residual water runs out of the mouth instead of pooling around the seeds — the most common cause of soggy, spoiled batches.
Sprouting in cold or very hot weather?
Aim for a spot around 21°C. In heat, rinse three times a day; in cold, expect growth to take a day or two longer.
10 · Scientific evidence
The evidence, claim by claim
Each claim on this page maps to published research or official guidance.
Vitamin C during germination
Review of 300+ studies: 4–20× increase. Germinated beans documented curing scurvy in clinical use; confirmed in mung (2013) and pigeon pea (2024) sprouts.
Refs 2, 3, 4, 6
Phytic acid & mineral bioavailability
Phytase activity during sprouting breaks down phytic acid, improving absorption of iron, zinc and calcium even where raw mineral quantity falls.
Refs 4, 7
Protein & amino acids
Dry-weight protein rises somewhat as starch is consumed; stored protein becomes free amino acids. Essential amino acid balance largely unchanged.
Ref 1
B-vitamins incl. folate
Niacin, choline, biotin up; pantothenic acid and thiamin steady; folic acid down in legumes studied. Seed- and duration-dependent.
Refs 1, 5
Vitamin B12
No sprouted seed or legume has been shown to contain nutritionally meaningful active B12. Only bacteria and archaea synthesise it.
Refs 8, 9, 10
Copper & reactive materials
FDA: copper should not contact food below ~pH 6. NIH lists abdominal pain, vomiting and liver damage among effects of copper over-exposure.
Refs 11–14
Raw sprout food safety
46 US outbreaks, 2,472 illnesses, 187 hospitalisations, 3 deaths (1996–2016). Drainage and frequent rinsing are the key home practices.
Refs 15–19
Evidence key: Strong / Well documented · Modest / Guidance · Mixed · Not supported
11 · Shipping & returns
Packed like glass. Because it is.
Shipping, returns and replacements: see our Shipping & Replacement Policy.
Use it well — safety notes
- Use seed sold and tested for sprouting only.
- Wash jar and lid in hot soapy water between batches.
- Rinse and drain fully 2–3× daily, every day.
- Refrigerate sprouts promptly; use within a week.
- Don’t rely on sprouts for vitamin B12.
Pregnant, elderly, immunocompromised or feeding young children? Cook sprouts first.
Care
Hand-wash recommended. Dry jar and mesh lid fully before storing. Avoid sudden temperature shocks to the glass (e.g. boiling water into a cold jar).
12 · Clinical studies
Sources & full studies
Journal studies link to a Google Scholar search for the paper; guidance sources link to the publishing organisation. Numbering matches the Tattwas Sprout Maker Research Book.
1Vanderstoep, J.
Effect of germination on the nutritive value of legumes. Food Technology, 1981.· Read source →
2Finney, P.L.
Effect of germination on cereal and legume nutrient changes. Recent Advances in Phytochemistry, Vol. 17, 1982.· Read source →
3Riddoch, C.H. et al.
Germinating beans as a source of vitamin C in refugee foods. Eur J Clin Nutr, 1998; 52(2): 115–118.· Read source →
4Vayupharp, B., Laksanalamai, V.
Nutrients and anti-nutrients of mungbean sprouts. Int J Agric Biol Eng, 2013; 6(4).· Read source →
5Ahmed Fouad, A., Ali Rehab, F.M.
Germination time and lentil sprouts. Acta Sci Pol Technol Aliment, 2015; 14(3).· Read source →
6Udeh, C.S. et al.
Effect of sprouting on the nutritional composition of legumes. Am J Biomed Sci Res, 2024; 24(2).· Read source →
7Urbano, G. et al.
Zinc and magnesium bioavailability from pea sprouts. Int J Food Sci Tech, 2006; 41(6).· Read source →
11FDA guidance on copper contact with acidic foods (below pH 6), via Iowa ABD advisory.
· Read source →
12NIH consumer guidance on copper toxicity.
· Read source →
13FDA cookware guidance on unlined copper and acidic foods.
· Read source →
15FDA.
Reducing Microbial Food Safety Hazards for Sprouted Seed (1999; 2017, 2023 updates).· Read source →
17Food Poisoning Bulletin, citing FDA Produce Safety Rule data, 1996–2016.
· Read source →
18UC Davis food-safety guidance on sprouting and bacterial growth.
· Read source →
19FDA & CDC joint advisory on raw alfalfa sprouts, 2009.
· Read source →
21Bass, L., Sanders, D.C.
Beansprouts and Other Vegetable Seed Sprouts. NC State Extension, HIL 8106.· Read source →