Wrap the scallions in a slightly damp paper towel. The dampness provides the humidity needed for proper storage; if the towel is too wet though, it can promote rotting. Place the wrapped scallions inside a plastic bag or storage container; it doesn’t need to be sealed airtight.

Should you store scallions in water?

Standing their root ends in water can restore moisture and firm texture.) With their root ends stored in a little water, scallions will stay firm and fresh for well over a week.

How long can you keep chopped scallions in the fridge?

How to store chopped green onions. To save on time, you can pre-chop green onions while you’re prepping for future meals. Simply fill an airtight container like a mason jar with sliced onions and refrigerate for up to 5 days.