You know the drill: buy cilantro for taco night. Use four sprigs. Put the rest back in the fridge. Three days later open the bag and find a bag of green slime. A dollar ninety-nine down the drain.

I wasted a truly embarrassing amount of cilantro before a produce manager at my grocery store — a guy named Rafael who has worked there for twenty years — saw me grabbing yet another bunch and took pity on me. “Treat it like flowers,” he said. I thought he was joking. He was not.

The Flowers-in-a-Jar Method

Trim the stems, put cilantro in a jar of water, and cover loosely with a plastic bag. Like a bouquet. The water keeps the stems hydrated. The bag traps humidity so the leaves do not dry out. Leave a little gap for air circulation — do not seal it tight.

Change the water every two days. The leaves stay crisp, the stems stay firm, and instead of three days you get two full weeks of usable cilantro. I have pushed it to eighteen days once, though the flavor starts fading by the end.

Why the Original Bag Method Fails

The bag cilantro comes in from the store is designed for transport, not storage. It traps ethylene gas and moisture in exactly the wrong proportions. The leaves rot while the stems go limp. Opening the bag and wrapping the bunch in a slightly damp paper towel before refrigerating is better than nothing, but the jar method is miles ahead.

For People Who Hate the Taste (Yes, That Is Genetic)

If cilantro tastes like soap to you, you probably have the OR6A2 gene variant. I am not going to convince you to store it — but flat-leaf parsley stores the exact same way. Two weeks, jar of water, loose bag, done.

Rafael’s other tip: never wash cilantro until you are about to use it. Water on the leaves in storage is a one-way ticket to slime town.