What Is Shiso? Taste Profile, Uses, & More

Most people reach for mint or basil when they want fresh, herbal lift in a dish - and shiso is the herb they're unknowingly missing.

If you're looking for alternatives to mint that bring sharper, more complex character, shiso delivers something neither herb can fully replicate.

It wraps sashimi, stains pickles deep red, and fries into paper-thin tempura - often within the same meal.

Understanding what makes it distinct helps you use it intentionally, not just decoratively.

What Is shiso?

Shiso (Perilla frutescens var. crispa) is a leafy aromatic herb native to East Asia, used most prominently in Japanese, Korean, and Vietnamese kitchens.

It belongs to the mint family and grows serrated, oval leaves that range from bright green to deep burgundy depending on variety.

The two main types are ao-shiso (green shiso) and aka-shiso (red shiso), and they serve different purposes.

Ao-shiso is the variety you'll see wrapped around sashimi or folded into a onigiri rice balls recipe; aka-shiso is most famous for coloring umeboshi plums and pickling brines that vibrant red-purple.

You'll also find it sold under several other names - perilla, oba, Japanese basil, or simply shiso leaf. Calling it "Japanese basil" isn't wrong, but it undersells how different it tastes.

Its compound perillaldehyde is responsible for that signature minty-anise aroma and doesn't appear in basil at all.

• 🌿 Ao-shiso (green) - bright flavor, used raw as wrap or chiffonade, plus tempura
• 🔴 Aka-shiso (red) - earthier and more tannic, primary role in pickling and coloring
• 🌏 Other names - perilla, oba, Japanese basil, shiso leaf, perilla frutescens var. crispa

What Does shiso Taste Like?

Shiso tastes like what you'd get if mint, basil, and a mild anise seed crossed paths. The mint element is real but restrained - it's fresh and cool without the sharp menthol edge you get from peppermint.

The anise undertone is subtle and slightly sweet, and citrus-like brightness lifts the whole profile without any actual sourness. A faint pepperiness lingers at the back of the palate, especially in younger green leaves.

Heat changes things noticeably.

A raw shiso leaf in sashimi delivers its full herbaceous punch; the same leaf wilted in a warm sauce loses its brightness quickly and turns slightly grassy. Aka-shiso reads earthier and more tannic than green - less mint, more iron-like depth - which is why it's used for flavor in brines rather than eaten fresh.

How to Use shiso

Raw shiso is where the herb shows best.

Whole ao-shiso leaves work as a natural wrapper for sashimi, adding herbal contrast to fatty fish without overwhelming it.

Thin julienne - chiffonade-cut into fine ribbons - works scattered over cold soba, rice bowls, or salads, and it's one area where swapping out shiso is genuinely difficult because nothing else delivers that exact flavor combination.

For cooked applications, tempura-battered shiso is a classic: the whole leaf is dipped and fried for roughly 60-90 seconds, producing a crisp, translucent shell that preserves much of the aroma.

If you're experimenting with batter options, checking replacements for tempura flour gives you workable alternatives.

Shiso also infuses well - steep leaves in rice vinegar or light oil for 24 hours for a dressing base with genuine herbaceous depth.

Aka-shiso earns its place in pickling. It gives umeboshi their red color and contributes a distinctly tannic, mineral note to the brine. The same approach scales to cucumber or ginger pickles where color and savory depth both matter.

Shiso pairs naturally with soy sauce, ponzu, yuzu, sesame oil, and raw fish - and swapping out ponzu sauce in those pairings shows how central its citrus-acid element really is.

For grilled applications, shiso blended with sesame oil and soy makes a quick, no-cook sauce for chicken or pork.

How to Buy and Store shiso

At the market, reach for leaves that stand upright and show no yellowing or sliminess. Ao-shiso should be a clear, saturated green; aka-shiso should show deep burgundy with no brown edges. Snap a stem - it should break cleanly, not bend.

When you can, smell the leaf; fresh shiso gives an immediate minty-citrus signal.

At home, wrap leaves loosely in a damp paper towel, slip them into a perforated bag or loosely sealed container, and refrigerate.

Fresh shiso's shelf life sits around 3-7 days - notably shorter than something like basil's shelf life under the same conditions.

For a full breakdown of what affects freshness and when to discard, see the details on shiso's shelf life.

Pickled or dried shiso keeps far longer and is a practical option when fresh supply is inconsistent.

Start Here if You're New to Shiso

Buy green shiso first. It's more widely available, easier to use raw, and shows the herb's flavor most clearly.

Lay a whole leaf under sashimi or slice a few ribbons over rice - both approaches let you understand what the herb actually contributes before getting into pickling or infusions.

Red shiso is a second step. It's less about eating fresh and more about building color and depth into brines.

Once you've tasted what it does to umeboshi or a simple cucumber pickle, its role makes immediate sense.

Both varieties reward what pairs with sashimi thinking - the herb is almost always part of a composed pairing, not a solo act.