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Quick answer: Hiyaoroshi is sake that’s brewed in winter, aged through the summer, and released only in fall — usually September through November — skipping the second of sake’s usual two pasteurizations. That single skip is the whole trick: it keeps a trace of fresh, nama-like liveliness while still carrying a rounder, more matured flavor than the same brewery’s spring release. Four real hiyaoroshi bottles are in stock at Palate Project right now: Harushika “Hiyaoroshi” Junmai Ginjo ($54, peach and strawberry, the easiest entry point) is the one to start with if you haven’t tried the style before.
What Is Hiyaoroshi, Exactly?
Most sake is pasteurized twice: once right after pressing, and again just before bottling, to stabilize it for the trip to a store shelf. Hiyaoroshi skips that second pasteurization. The sake is brewed over winter, pasteurized once, then stored and aged through the summer in tank, mellowing and rounding out before it’s finally bottled and shipped in fall without ever getting that second heat treatment. The name itself describes the process: “hiya” (cold) “oroshi” (to ship out) refers to shipping the tank-cooled sake out once autumn arrives.
The result sits in a specific middle ground. It has more depth and roundness than a spring release of the same sake, because it’s had a summer to mature, but it keeps more of the bright, slightly effervescent liveliness of nama (fully unpasteurized) sake than a standard twice-pasteurized bottle does. It’s also genuinely seasonal in the way most sake styles aren’t — once a brewery’s hiyaoroshi run sells out for the year, it’s gone until the following fall.
Four Real Hiyaoroshi Bottles In Stock This Fall
Harushika “Hiyaoroshi” Junmai Ginjo
Imanishi Seibee Shoten, the brewery behind Harushika, prints falling leaves directly on the label to mark it as a hiyaoroshi release. At 60% seimaibuai and Junmai Ginjo grade, it’s the most classically “ginjo” of the four here — peach and strawberry aromatics up front, with mild sweetness balanced by savory undertones underneath. ABV 16%.
Bottom line: the most approachable of the four, and the one to reach for if this is your first hiyaoroshi.
Shop Harushika Hiyaoroshi at Palate Project → ($54, 720ml)
Jyoku “Squirrel’s Harvest Festival” Junmai Genshu
Hachinohe Shurui’s Jyoku line leans playful with its naming, but the sake itself is a straightforward Junmai Genshu at 65% seimaibuai — genshu meaning no water was added to bring the alcohol down before bottling, though at 16% ABV this one stays well short of the 18%+ some genshu push to. Expect citrus up front settling into a comforting rice-and-cream character; the brewery’s own notes suggest pairing it with oden or grilled Pacific saury, both classic Japanese autumn dishes.
Bottom line: the pick if you want genshu’s fuller body without genshu’s usual alcohol punch.
Shop Jyoku Squirrel’s Harvest Festival at Palate Project → ($54, 720ml)
Kinoene “Okarakuchi” Hiyaoroshi Junmai Genshu
Iinuma Honke labels this one “okarakuchi” — notably dry — and at 80% seimaibuai it’s the least polished, most rice-forward bottle of the four. It’s also a genshu, but at 15% ABV it’s the lowest-alcohol bottle here despite that. Muscat grape and grain notes lead into a clean, dry finish, and the brewery notes it holds up warm as well as cold, which isn’t true of every hiyaoroshi.
Bottom line: the one to buy if “sweet fall sake” isn’t what you’re after — this is dry, food-first, and versatile enough to serve warm.
Shop Kinoene Okarakuchi Hiyaoroshi at Palate Project → ($42, 720ml)
Urakasumi “Hiyaoroshi” Junmai
Saura, the brewery behind Urakasumi, has supplied sake to Shiogama Shrine in Miyagi since 1724, and this bottle is built entirely on Sasanishiki — a rice more commonly known for sushi than sake, grown locally in the Tohoku region. At 16.5% ABV it’s the strongest pour of the four, with banana, anise, and mushroom notes and a soft, juicy texture the brewery describes as satisfying rather than sharp.
Bottom line: the pick for a savory, umami-leaning profile rather than the fruit-forward character of the other three.
Shop Urakasumi Hiyaoroshi at Palate Project → ($56, 720ml)
Comparison at a Glance
| Harushika | Jyoku | Kinoene Okarakuchi | Urakasumi | |
|---|---|---|---|---|
| Grade | Junmai Ginjo | Junmai Genshu | Junmai Genshu | Junmai |
| Seimaibuai | 60% | 65% | 80% | Not published |
| ABV | 16.0% | 16.0% | 15.0% | 16.5% |
| Character | Fruity, mildly sweet | Citrus, rice and cream | Dry, rice-forward | Savory, umami-leaning |
| Price | $54 | $54 | $42 | $56 |
Which One Should You Buy?
- New to hiyaoroshi and want the easiest entry point: get the Harushika Hiyaoroshi.
- Want genshu’s fuller body without a heavy alcohol kick: get the Jyoku Squirrel’s Harvest Festival.
- Prefer dry over sweet, or want a bottle that also works warm: get the Kinoene Okarakuchi Hiyaoroshi.
- Want something savory and food-focused rather than fruit-forward: get the Urakasumi Hiyaoroshi.
- Not sure yet: our Junmai vs Honjozo and sake grades explained guide cover the grade labels these bottles use before you commit to one.
How to Serve Hiyaoroshi
Chilled or at cool room temperature is the standard recommendation for most hiyaoroshi, since it shows off the aromatics that develop during the summer aging. Kinoene’s Okarakuchi is the exception among these four, with the brewery specifically noting it holds up warmed, which lines up with its drier, more rice-forward profile — fuller-bodied, less aromatic sake generally takes to warming better than a lighter, more aromatic style does. Our sake warmers guide covers the equipment if you want to try it.
FAQ
Is hiyaoroshi the same as nama (unpasteurized) sake?
No. Nama sake skips both pasteurizations. Hiyaoroshi gets the first pasteurization right after pressing but skips the second one before bottling — a middle ground between fully pasteurized and fully raw.
When can you actually buy hiyaoroshi?
Roughly September through November, though exact release windows vary by brewery. Once a given year’s batch sells out, it’s gone until the following fall — these aren’t a standing product line.
Does hiyaoroshi need to be refrigerated?
Yes, the same as any sake that’s had only one pasteurization rather than two. Keep it cold and drink it within a reasonable window after opening; our does sake expire guide covers how that timeline changes based on how a sake was processed.
What does “genshu” mean on two of these labels?
Genshu means no water was added to bring the alcohol content down before bottling, which by regulation means the final ABV can’t be lowered by more than about 1 percentage point from the original brewed strength. Genshu often runs stronger than standard sake as a result, though the two genshu bottles here (Jyoku and Kinoene) are on the lower end of that range at 15–16% ABV.
Final Thoughts
Hiyaoroshi is one of the few sake styles that’s genuinely tied to a calendar window rather than being available year-round, and that seasonality is most of the appeal — a single pasteurization and a summer of aging produce a flavor profile a standard release of the same sake doesn’t have. All four bottles above are currently in stock at Palate Project, but hiyaoroshi runs sell out; if one of these is gone by the time you check, our broader sake for beginners guide and sake grades explained guide cover what else to look for using the same grade labels.