Pantry Staples
Sunflower Seeds (Shelled) Conversion
Sunflower Seeds (Shelled) weighs 140g per US cup.
| Amount | Grams | Ounces |
|---|---|---|
| 1 cup | 140.0 g | 4.94 oz |
| 1/2 cup | 70.0 g | 2.47 oz |
| 1/4 cup | 35.0 g | 1.23 oz |
| 1 tbsp | 8.8 g | 0.31 oz |
| 1 tsp | 2.9 g | 0.10 oz |
| 100 g | 100.0 g | 3.53 oz |
Need a different amount? Use the full Ingredient Converter tool.
Shelled sunflower seeds weigh 140 grams per cup, and this figure applies to the edible kernel with the hard outer hull already removed — a hull that, left on, would make up a substantial portion of a cup's volume without adding any usable food weight.
Sunflower seeds are a common nut-free alternative in recipes and snacks aimed at schools or other environments with nut allergy restrictions, standing in reasonably well for a chopped nut in texture and healthy-fat content, though their flavor is distinctly different — earthier and less rich than most tree nuts.
A well-documented quirk of baking with sunflower seeds: the chlorophyll compounds in the seeds can react with baking soda's alkalinity during baking to turn baked goods (particularly the crumb around the seeds) a harmless but sometimes alarming green or blue-green color — a genuine chemical reaction, not a sign anything's wrong with the batch.
A quick taste test before adding a large batch to a recipe is worth doing, since rancid seeds have a distinctly bitter, off flavor that's easy to notice.
Shelled sunflower seeds lose the protection their hull once gave them the moment they're hulled, so a jar meant to last more than a couple of weeks does better in the fridge or freezer than sitting out on a pantry shelf.
They're a traditional topping for a multigrain bread or roll, both for flavor and visual texture, pressed into the dough's surface before baking.
Sunflower seeds are a genuinely good source of vitamin E and healthy unsaturated fats, which is part of their appeal as a snack beyond just being nut-free — that same fat content, though, is exactly why they should be stored in the fridge or freezer if they won't be used within a couple of months, since they can turn rancid at room temperature faster than a drier pantry staple would.
Their mild, slightly earthy flavor deepens noticeably when toasted in a dry pan for a few minutes before use, a simple step that makes a real difference in a granola, a salad topping, or a bread dough studded with seeds.
Frequently asked questions
Does the 140g figure include the hull?
No — it's specifically for shelled sunflower seed kernels, since the hard outer hull is inedible and would significantly distort a cup measurement's actual usable weight if included.
Why do baked goods with sunflower seeds sometimes turn green?
It's a real, harmless chemical reaction between chlorophyll compounds in the seed and the alkalinity of baking soda, most noticeable in the crumb immediately surrounding the seeds — it doesn't affect flavor or safety, just appearance.
Are sunflower seeds a good nut-free substitute in baking?
Yes, especially for allergy-conscious baking — they provide a comparable crunch and a similar healthy-fat profile to a chopped nut, though the flavor is distinctly earthier and less rich than most tree nuts.
Do roasted sunflower seeds weigh the same as raw ones per cup?
Very close — roasting removes a small amount of moisture, which can make roasted seeds marginally lighter per cup than raw, though the 140g figure works as a reasonably close reference for both.
Is sunflower seed butter a good substitute for peanut butter?
It's the standard nut-free substitute and works well in most recipes calling for peanut butter, though it has a milder, slightly more savory flavor and can also trigger the same green-color baking-soda reaction as whole seeds.