Microgreens at Home Without Soil: Methi, Sarson, Mooli, Moong

Yes, you can grow microgreens at home without soil: a wet tissue or a layer of cocopeat in a takeaway box, kitchen methi, rai or moong seeds, three days in the dark and about a week at a bright window gives you a tray of tiny greens to snip in 7 to 12 days. Here’s the method, how microgreens differ from sprouts, how to tell mould from harmless root hairs, and who should cook them rather than eat them raw.

Microgreens vs sprouts: what’s the difference?

Same seed. The difference is light, time and which part you eat.

Sprouts grow in a dark, damp jar for 2 to 4 days and you eat the whole thing, seed, root and all. Microgreens grow on a base in the light for a week or more, turn green, open their first pair of leaves, and are cut above the root with scissors, so you eat only the stem and leaves.

That matters for safety. Sprouts sit in warm, wet darkness with the seed coat, which is where bacteria like to hide, and that’s why our guide to moong and chana sprouts at home is strict about cooking them for some people. Microgreens grow in open air and you leave the seed behind. Lower risk. Not zero, because germs can ride in on the seed itself.

Which seeds to use (and which never to use)

Use seeds sold as food, or seeds sold as untreated for sprouting. Start with your spice box.

• Methi (fenugreek): kitchen methi dana works well and tastes like the fresh methi leaves you already cook with, only softer.
• Sarson or rai (mustard): sprouts fast, tastes hot and peppery.
• Mooli (radish): buy untreated seed from a seed shop. Pink stems, sharp bite.
• Moong (green gram): whole kitchen moong. Crunchy and sweet.

Never use seed sold for farm or garden sowing unless the packet says untreated. Farm seed is often coated with fungicide or insecticide, and the coating is usually dyed pink, blue, red or green so farmers can see it. Those chemicals aren’t meant to be eaten, so oddly coloured or dusty seed, or any packet that says “not for human consumption”, stays away from your tray.

How to grow microgreens at home without soil, step by step

You need a shallow plastic box, a second box or plate to cover it, plain unscented tissue, a spray bottle and scissors, all of which most kitchens already have in a drawer somewhere, so the only thing you may need to buy is a small packet of untreated mooli seed if you want the pink ones. That’s it.

1. Wash the tray and cover in hot soapy water, rinse and dry them in the sun. If you’re using cocopeat, poke 6 to 8 small holes in the tray.
2. Soak the seeds: methi 6 to 8 hours, moong 8 to 12 hours. Rai and mooli need 2 to 4 hours at most, because they turn slimy if left long.
3. For a tray about 15 by 20 cm, use roughly 1 to 1.5 tablespoons of methi, rai or mooli seed, or about 4 tablespoons of moong. Seeds should touch but never pile up.
4. Lay 4 to 5 layers of tissue in the tray and wet them until soaked with no pooling, or spread 2 cm of washed, squeezed cocopeat and press it flat.
5. Scatter the drained seeds evenly and mist with 8 to 10 sprays.
6. Cover with the second tray (for moong, add a steel bowl on top as a small weight). Keep somewhere dark at about 20 to 28 °C for 2 to 3 days, misting 2 to 3 times a day.
7. When shoots are 2 to 3 cm tall and pale yellow, uncover and move to a bright window. Two or three hours of morning sun is ideal.
8. From now on, water from below: pour 2 to 3 tablespoons into an outer tray so the leaves stay dry.
9. Harvest at day 7 to 12, when stems are 5 to 10 cm and the first leaves are open and green. Cut 1 cm above the base with clean scissors.

Do microgreens need sunlight?

They need light, but not necessarily direct sun. Without it they grow tall, thin and yellow, like sprouts that forgot to stop. In a dim flat, a white LED bulb held 20 to 30 cm above the tray for 12 to 16 hours a day works. Stems leaning hard towards the window want more light; turn the tray daily.

Why are my microgreens molding? Mould vs root hairs

This question makes people throw away perfectly good trays. Look first.

Root hairs are harmless. On day 2 or 3, rai, mooli and moong grow a fine white fuzz along each little root, like cotton wool. It sits only on the roots, it’s evenly spread, and it collapses and nearly vanishes when you mist it.

Mould means the bin. It looks like a grey-white cobweb spreading across seeds, stems and base, often in a patch or circle, and it doesn’t disappear when misted. Seeds under it go slimy or brown and the tray smells musty or sour instead of fresh. Some moulds show blue-green or black spots. Throw out the whole tray, base and all, and don’t try cutting around it, because the threads you can see are only part of it.

Mould usually comes from seeds sown too thick, water pooling in the base, humid still air (monsoon and closed kitchens are the worst) or a tray that wasn’t cleaned after the last crop. Sow thinner, bottom-water, keep a window open or a small fan nearby, and sun-dry trays every time.

Who should cook microgreens instead of eating them raw

For everyone else, wash your hands before handling the tray, use clean scissors, and rinse the cut greens in a bowl of fresh water just before eating.

What microgreens really give you, and how to use them

Young leaves pack vitamin C, vitamin K, folate and plant pigments into a small, tender bite. Rai and mooli bring the same sharp mustard oils as the grown vegetable. Good food.

Myth: microgreens are many times more nutritious than the full vegetable

Gram for gram, some microgreens do hold more of certain vitamins than the mature leaf. But you eat a small handful, around 20 to 30 grams, while a katori of cooked methi or palak weighs several times that. So a sprinkle adds freshness, colour and some vitamins. It doesn’t replace a serving of cooked greens, and it isn’t a medicine for anything.

Storing and eating

Cut only what you need. To store, harvest dry (skip that morning’s watering), lay them in a tissue-lined box and refrigerate; they stay crisp for about 3 to 5 days. Rinse just before eating, never before storing. Stir a fistful into raita, scatter over daal or chana chaat, fold into an aloo paratha filling, or pile moong microgreens into a cucumber and green chutney sandwich. More ways to turn small kitchen odds and ends into food live in our Zero-Waste Kitchen section.

Surprising facts

The first two leaves on most microgreens aren’t true leaves at all. They’re seed leaves (cotyledons) that were folded up inside the seed, which is why a methi microgreen looks nothing like a grown methi plant. And the slippery gel on soaked rai is mucilage, a cousin of the stuff that makes tukh malanga swell.

Microgreens questions people ask