Why Pumpkin Seeds Are Green, Fresh or Store-Bought

Pumpkin seeds are green because the edible kernel inside the white hull is wrapped in a thin, dark green seed coat colored by chlorophyll. That's normal and safe, and it's exactly what a store-bought pepita is. Roast them as usual, about 20 to 25 minutes at 325°F, and the green stays green.

Here's the surprising part: the white shell you're used to is the hull. The seed underneath was always green. Most carving pumpkins just hide it.

Green and firm is fine. Green and fuzzy is not.

Why are store pepitas green with no shell?

Those come from hull-less pumpkin varieties, Styrian being the best known, bred so the seed never builds a hard white shell. You're looking at the same green seed coat that sits inside your jack-o'-lantern seeds, just without the armor. It's the same plant family and the same chlorophyll in different packaging.

A carving or pie pumpkin puts its seed energy into a thick, fibrous shell, so you get maybe a cup of seeds per medium pumpkin and most of that weight is hull. Hull-less types skip that, which is why pepitas cost more per ounce but have no waste.

If you want pepita texture from a regular pumpkin, you'd have to crack each hull by hand. Skip it. Roast the seeds whole and eat them shell and all, or buy pepitas.

When does green mean something's wrong?

Two situations deserve a second look.

• Fuzzy or powdery spots are mold. Blue-green, gray or white fuzz on the outside of the hull, or a musty smell, means you should toss the batch. The USDA's Food Safety and Inspection Service advises discarding soft or moist foods with visible mold rather than trying to salvage them, and wet seeds pulled from a soft pumpkin fit that description.
• Sprouts mean the pumpkin sat too long. An old pumpkin can start germinating its seeds inside the cavity. You'll see split hulls, white root tips and sometimes pale green leaves. If the flesh around them is soft, wet or smells off, throw the whole thing out.

A seed that's plump, smooth and green only under the hull is just a seed.

Do green seeds roast any differently?

No, but wet seeds of any color roast badly. Rinse off the strings, then dry the seeds on a towel for at least an hour, or overnight if you can. Water on the hull steams instead of browning.

1. Dry them well. Spread the seeds in one layer on a towel and pat until the hulls feel papery, not slick.
2. Season lightly. For every cup of seeds, toss with 1 teaspoon of neutral oil and 1/2 teaspoon of fine salt.
3. Roast low. Bake at 325°F on a sheet pan, stirring every 8 minutes, for 20 to 25 minutes.
4. Taste, don't time. Pull two or three, let them cool for a minute, and bite. They should crack cleanly with no chew.

Shelled pepitas are thinner and brown faster, so they're better in a dry skillet over medium heat for 4 to 6 minutes. They'll puff and pop slightly when they're ready, the same cue you'd use when you toast whole spices.

Related: Why Your Roast Pumpkin Is Soggy (And How to Fix It)

If you're carving pumpkins a few days ahead, scoop the seeds the day you cut them. A carved pumpkin on the porch molds from the inside, and the seeds go first.