Produce
Raspberries (Fresh) Conversion
Raspberries (Fresh) weighs 125g per US cup.
| Amount | Grams | Ounces |
|---|---|---|
| 1 cup | 125.0 g | 4.41 oz |
| 1/2 cup | 62.5 g | 2.20 oz |
| 1/4 cup | 31.3 g | 1.10 oz |
| 1 tbsp | 7.8 g | 0.28 oz |
| 1 tsp | 2.6 g | 0.09 oz |
| 100 g | 100.0 g | 3.53 oz |
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Raspberries weigh just 125 grams per cup, notably light for a berry, because they're structurally hollow — each raspberry forms around a central core that separates away when picked, leaving the berry itself as a cluster of small, delicate drupelets around empty space rather than a solid fruit.
That hollow, delicate structure is exactly why raspberries are the shortest-lived fresh fruit on this site's storage guidance — just 2-3 days refrigerated — since their thin skin and open structure make them especially vulnerable to mold and physical bruising compared to a firmer berry like a blueberry.
Raspberries freeze well despite their fragility fresh, holding up for 10-12 months in the freezer — the cold actually helps preserve their delicate structure in a way that's more forgiving than their short fresh fridge life would suggest, though like most soft fruit, thawed raspberries turn considerably softer and are best used in a cooked or blended application rather than served fresh.
Raspberries' delicate, hollow structure gives them one of the lightest cup weights among common berries (123g) — that same delicate structure is why raspberries bruise and mold faster than sturdier berries like blueberries, and why this site's storage guidance for raspberries specifies a shorter fridge window than most other fresh fruit.
Unlike strawberries, raspberries detach from their central core when picked, leaving the characteristic hollow center — a structural feature that also makes them easy to fill (with cream or mousse) but more fragile to transport and store than a solid berry.
Frozen raspberries hold their shape reasonably well once thawed, though they release more liquid than fresh, which is worth accounting for in a filling or sauce.
How long does it last?
Storage & shelf life →
Frequently asked questions
Why do raspberries spoil so much faster than other berries?
Their hollow structure and thin, delicate skin (raspberries form around a core that separates away when picked, unlike a solid berry) make them especially vulnerable to mold and bruising, which is why this site lists just 2-3 days of fridge life compared to blueberries' 1-2 weeks.
Should raspberries be washed before storing?
Best to wait until just before eating or using them — like other berries, added moisture from washing speeds up mold growth during storage; a gentle rinse right before use is the better approach for such a delicate, short-lived fruit.
Do frozen raspberries work as well as fresh in a recipe?
For baking, sauces, or smoothies, yes — freezing (good for 10-12 months) actually helps raspberries hold up better than their short fresh shelf life suggests, though thawed raspberries turn quite soft and aren't a good substitute for fresh berries served whole as a garnish.
Why are raspberries hollow in the center?
They form as a cluster of tiny fruit segments (drupelets) around a central core, and that core stays on the plant when the berry is picked, leaving the harvested raspberry with its characteristic hollow structure — a real botanical feature, not a sign of poor quality.
What's the earliest sign that raspberries are starting to spoil?
Mold is often the most visible and fastest-appearing sign given how quickly raspberries can develop it, closely followed by mushiness and any juice leaking in the container — worth checking a punnet carefully even within its first day or two in the fridge.