Sprouting Seeds FAQ

Alfalfa, broccoli and radish are useful starting choices for jar growing. Choose one variety for your first batch so you can follow its soaking and harvest instructions. Browse our sprouting seeds for current options.

Use seed specifically suitable for edible sprouting. Garden seed may have treatments or be unsuitable for eating at the sprout stage. Check the product’s intended use before buying; an untreated label alone does not establish suitability for raw sprouting.

Start with a clean sprouting jar, a draining lid or screen, suitable seed and drinking-quality water. You also need a way to hold the jar at a draining angle. Soil and grow lights are not needed for normal jar sprouting. See our jar-sprouting guide.

Follow the quantity for your variety and jar size. For example, our 500ml-jar guide uses about 15g of dry broccoli seed. Seeds expand as they grow, so leave room for rinsing and drainage. See the seed quantities and soaking guide.

No. Our guide recommends around four hours for broccoli, six to eight hours for alfalfa, and eight to twelve hours for mung beans. These are variety-specific starting points; check the current instructions for your seed before soaking.

Most varieties in our guide need rinsing and thorough draining two or three times daily; some need more frequent attention. Use drinking-quality water and follow the crop instructions. Keep the jar angled between rinses so water does not pool around the seeds.

Timing depends on the variety and temperature. Broccoli and alfalfa commonly take around five to six days in our growing guide, while garlic chive sprouts can take ten to fourteen days. Use the product’s harvest range and inspect the crop as it develops.

Choose a place with airflow away from hot direct sunlight. Leafy sprouts can receive indirect light near harvest to develop greener leaves. Avoid overheated windowsills and enclosed spaces where humidity builds up.

Check seed storage, soaking time, temperature and drainage against the product instructions. Seeds may also need more time in cool conditions. If problems continue, send us your order and batch details, photos and a description of your growing method.

Fine hairs attached evenly to individual roots may be normal root hairs. Growth spreading between seeds, slime or decay is more concerning. A rinse test or normal smell cannot prove food is safe. If you cannot confidently identify it, discard the batch. See our mould and root hairs guide.

Discard the batch. Do not try to rescue spoiled sprouts by rinsing or cooking them. Clean and sanitise the equipment using a suitable food-contact method before starting again, following the equipment and sanitiser instructions.

Only combine varieties with compatible growing requirements. Different soaking times and harvest stages can make a mixed batch harder to manage. Growing separate varieties in separate jars is a simpler starting point.

Drain well after the final rinse and refrigerate promptly in a clean covered container at 5°C or below. Follow any specific storage advice and use promptly. Discard spoiled sprouts, and remember that appearance and smell cannot rule out harmful bacteria.

Raw and lightly cooked sprouts carry a food-poisoning risk, even when grown hygienically. NSW Food Authority recommends cooking sprouts thoroughly. People with lower immunity, including pregnant people and young children, should avoid raw or lightly cooked sprouts. Read the current NSW Food Authority advice.

Contact us with your order number, seed batch and growing details. Eligible seeds have an additional 90-day germination guarantee, subject to assessment. Your Australian Consumer Law rights remain unaffected. Read our refund and germination guarantee policy.