Produce

Scallions (Green Onions): Storage & Shelf Life

Scallions (green onions) last 1-2 weeks in the fridge, either in a sealed container or standing upright in a cup of water — the water method genuinely extends freshness noticeably, similar in spirit to how asparagus benefits from standing in water rather than being stored flat.

Freezing chopped scallions (6-8 months) works reasonably well, and like most alliums on this site, the texture softens considerably, making frozen scallions better suited to a cooked dish (a stir-fry, a soup garnish stirred in while hot) than a fresh, raw topping.

Regrowing scallions from their root ends in a glass of water is a well-known, genuinely functional kitchen trick — a scallion's white root base can sprout new green growth over about a week, giving a partial second harvest from what would otherwise be discarded kitchen scraps.

Trimming the root ends slightly before storing in water helps them take up water more effectively, similar to fresh-cut flowers.

A jar of scallions in water on a sunny windowsill will often sprout new growth even while the rest of the bunch is being used, giving a small bonus harvest.

Wrapping the green tops loosely in a bag over the jar helps retain humidity around the more delicate leaves.

Scallions that have gone slightly limp can often be revived by trimming the ends and standing them in fresh cold water for an hour.

Chopped scallions freeze reasonably well straight into a bag without blanching first, since they're almost always used as a cooked or garnish ingredient rather than eaten raw once thawed, so the softer texture freezing causes matters less than it would for a fresh salad green.

A bunch stored root-end-down in a glass of water, changed every couple of days, both keeps the scallions fresher and lets them regrow a bit of new green from the cut tops in the meantime.

Scallions that have turned slimy or developed a strong sulfurous smell well beyond their normal oniony sharpness have spoiled and should be discarded, rather than trimmed and used around the affected section.

Only the white and pale portions need to be stood in water — the green tops can be snipped off as needed and kept in a separate bag if a recipe calls for using the two parts at different times.