Single malt, blended, pure malt, single grain. These read like a vocabulary you already know from Scotland. On a Japanese label they are defined, but they are defined in a Japanese document, and one of them is much broader than its Scottish equivalent.
The definitions live in the operational handling notes attached to the Fair Competition Code on whisky labelling. That is worth noting precisely: the Code itself is certified by the Japan Fair Trade Commission and the Consumer Affairs Agency, while these type-name definitions sit one level below it, in guidance the industry association approved for itself.
The glossary, in plain terms
Two building blocks come straight from the Liquor Tax Act:
- Malt whisky — distilled from malted grain, off the still below 95% ABV.
- Grain whisky — grain saccharified using malted grain, then distilled, same strength ceiling.
Everything else is assembled from those.
| Type name | What it requires |
|---|---|
| Single | Malt or grain from one distillery — or a mix of malt and grain both distilled at that same distillery, which is where single blended comes from |
| Straight | Malt alone, or grain alone, without the single-distillery condition |
| Pure | One raw material only, as in pure malt |
| Blended | Malt and grain mixed together — or whisky in the Liquor Tax Act’s third category |
The word to slow down on is blended
That last row is the one that matters, and it is easy to read past.
The glossary defines blended whisky as malt whisky mixed with grain whisky or as whisky falling under Article 3, item 15, sub-item (ハ) of the Liquor Tax Act. That sub-item is the one covered in the guide to reading the back label: whisky with alcohol, spirits, flavouring, colouring or water added, where the actual whisky need only account for ten per cent of the total alcohol.
So one word covers two very different things:
- A malt-and-grain blend in the Scottish sense.
- A bottle in which nine-tenths of the alcohol came from a neutral source.
Both may be called blended whisky on a Japanese label, correctly. The word does not separate them, and nothing else on the mandatory part of the label separates them either.
This is not a claim that most bottles are the second thing. It is a claim about what the word can and cannot tell you, which is the only claim you can act on when you are holding a bottle in a shop abroad.
Which names actually narrow things down
Ranked by how much they constrain the producer:
- Single malt — one distillery, malted grain only. The strongest of these terms, and it means what you expect.
- Single grain, single blended — also tied to one distillery.
- Pure malt — one raw material, but no distillery restriction. Can combine malt from many sources.
- Straight malt, straight grain — one type of spirit, no distillery restriction.
- Blended — see above. Constrains almost nothing on its own.
Note what is absent from this list: nothing here requires the spirit to have been distilled in Japan. That question is answered by the separate voluntary standard for the words Japanese whisky, covered in the first guide on this site. A bottle can honestly say single malt and have been distilled somewhere else entirely.
Two more things the rules say about wording
The same guidance restricts a few other habits, and both are useful signals.
Superlatives — finest, best, Special grade — are not to be used where the whisky component is under 30 per cent of the blend. And 「本格ウイスキー」, roughly “authentic whisky”, is not to be used at all, because it implies a superiority over other producers that cannot be substantiated.
Vague volume claims are treated the same way. Saying a bottle has “plenty of whisky in it” without stating the basis for the claim is listed as misleading. Which tells you, indirectly, that someone tried it.
The short version
| If the label says | Read it as |
|---|---|
| Single malt / single grain / single blended | One distillery. Real information |
| Pure malt | One raw material, any number of distilleries |
| Straight malt / straight grain | One type of spirit, any number of distilleries |
| Blended | Could be malt-and-grain, could be 90% added alcohol |
| Japanese whisky | Separate voluntary standard — see the first guide |
Combine this with the age statement rules and a short checklist emerges. Single tells you about the distillery. A number tells you about the youngest spirit. Japanese whisky tells you about origin, if the producer follows the standard. Everything else on the front of the bottle is there to be attractive, and is allowed to be.