Nori Seaweed
Nori is a paper-thin sheet made from dried, pressed red algae (mostly Pyropia species), toasted until it turns dark green to nearly black. It's the wrapper for sushi rolls and onigiri, but also gets crumbled or shredded as a savory, slightly briny seasoning on its own.
Varieties
Roasted (yaki) nori is dark green-black and crisp, meant for wrapping and eating as-is. Raw nori is a deeper purple-black and less common outside professional kitchens. Seasoned nori snacks are brushed with oil, salt, and sometimes sugar, making them too salty and brittle to use for rolling.
Buying tips
Choose sheets labeled 'yaki nori' (roasted) for eating and rolling; raw or 'ajitsuke' (seasoned, often sweetened) nori is meant for snacking, not sushi. Look for sheets that are uniformly dark, almost black-green, glossy, and free of holes or pale patches, which signal lower grade or stale product.
Substitutes
Soy paper (soybean wrapper) — 1:1
Common for sushi when nori's flavor or color isn't wanted. Softer texture, no seaweed taste, tends to be a bit sticky and tears less easily.
Rice paper (banh trang), softened — 1:1
Works as a roll wrapper but has a neutral, chewy texture with none of nori's toasted, oceanic flavor. Best for cold rolls, not classic sushi.
Dulse flakes — 1 tbsp flakes per 1 sheet nori, crumbled
Good for sprinkling over rice or popcorn to mimic the umami-salty seaweed flavor, but it won't work as a wrapper since it's flaky, not sheet form.
Wakame or kombu, finely shredded — Use sparingly to taste
Different texture and stronger iodine-like flavor; fine as a stand-in for seasoning broths or salads, not for rolling sushi.
Storage
Keep unopened nori in its original sealed package with the included silica packet, in a cool, dry pantry away from sunlight. Once opened, reseal tightly (a zip-top bag with the desiccant packet works) since nori absorbs moisture from the air within hours and turns limp and chewy instead of crisp.
How to use
Toast lightly over a flame or dry skillet for a few seconds per side to restore crispness before using in sushi or onigiri. Crumble or cut into strips with scissors for garnishing rice bowls, ramen, salads, and popcorn. Also blended into furikake seasoning or eaten plain as a salty snack.
What it pairs with
Pairs with sushi rice, pickled ginger, wasabi, and soy sauce in classic preparations, and with sesame oil, furikake, and avocado in rice bowls and hand rolls.
Nutrition
Nori is very low in calories per sheet but notably high in iodine and contains vitamin A, vitamin C, and trace amounts of protein; a little goes a long way nutritionally and in sodium if it's a seasoned or salted variety.
FAQ
Why did my nori get chewy and soft?
It absorbed moisture from the air, usually from an improperly resealed package or humid storage. A few seconds of dry-toasting over a stove flame or in a dry pan can crisp it back up before use.
Is nori the same as seaweed salad?
No. Seaweed salad is typically made from wakame, a different, softer brown algae; nori is a distinct red algae species, dried and pressed into flat sheets rather than served as strands.
Can nori go bad?
It doesn't spoil like fresh food, but it loses crispness and flavor over time. Unopened sheets keep well for a year or more in a sealed pantry; opened packages are best used within a few weeks.
Do I need special nori for sushi versus snacking?
Yes. Plain yaki nori is meant for rolling since it holds up to rice and moisture; seasoned nori snacks are pre-salted and oiled, which makes them too soft and flavored to use as a wrapper.
Have nori seaweed on hand? Find recipes with our Recipe Generator →