Decoding the Label: Five Essential Whisky Terms

Single malt, cask strength, small batch. Whisky descriptions are filled with terms whose precise meanings are not always immediately clear. Each conveys something about a spirit, but a term defining the grain recipe addresses a different stage from one describing how the whisky was bottled. Understanding what each term refers to allows a label to tell a richer story.

Grain Ratios and the Number of Distilleries

A “mash bill” refers to the types of grain used to make a whisky and the proportions in which they are combined. Used primarily in descriptions of American whisky, it details the recipe’s corn, rye, wheat, barley and other grains. In culinary terms, it is an ingredient formula.

For bourbon, one legal requirement is that the grain mixture contain at least 51% corn: more than half of the total. Even within that category, the recipe changes depending on whether the remaining grains lean toward rye or wheat. The mash bill provides a starting point for understanding the finished spirit’s character.

“Single malt,” by contrast, refers to malt whisky made from malted barley at a single distillery. Malted barley is barley that has been allowed to germinate. Enzymes activated during germination are used to convert starch into fermentable sugars. Yeast then transforms those sugars into alcohol before distillation.

Whisky from multiple casks may be combined as long as it comes from the same distillery. This differs from a “single cask” bottling, which uses spirit from just one cask.

Cask to Bottle: Cask Strength & Small Batch

“Cask strength” describes whisky bottled after maturation without adding water to adjust its alcohol content.

In standard bottling, water is added to bring the whisky to the product’s specified strength. When this adjustment is omitted, changes in strength caused by the evaporation of water and alcohol during maturation carry through to bottling. Different cask environments and maturation histories can therefore lead to different bottling strengths. Cask strength does not denote a fixed alcohol level; it describes a bottling method.

“Small batch” is used for whisky made by combining spirit from a limited selection of casks into one product. There is, however, no common standard specifying how many casks qualify. A small distillery and a large one may have different ideas of what constitutes a small volume.

Small batch indicates the scale on which a producer brings spirit together. While cask strength refers to bottling without dilution, small batch concerns how the spirit is assembled into a release.

Different Products from the Same Distillery: Expression

An “expression” is an industry term for an individual product offered by a brand or distillery. Producers vary maturation periods, cask types or combinations of spirit to reflect their ideas in each product. It is a way to discuss those differences, rather than a formal legal grade.

Consider SAKURAO Single Malt Whisky and TOGOUCHI Single Malt Whisky, both made at Sakurao Distillery in Hiroshima Prefecture. Both are single malts. Sakurao has a maturation warehouse close to the Seto Inland Sea, while Togouchi has one inside a mountain tunnel. Even when spirit is made at the same distillery, the choice of maturation location contributes to differences between products.

These five terms concern different kinds of information: grain proportions, ingredients and distillery origin, bottling methods, the scale of a batch, and individual products. A bottle can be both single malt and cask strength because one term identifies its ingredients and distillery origin, while the other describes its bottling method. Tracing the terms back to production allows even a brief label to reveal the choices of the maker.

This article explores whisky-making terminology and production methods for educational purposes, with examples from SAKURAO and TOGOUCHI. It does not promote the purchase or consumption of alcohol. Intended for readers aged 20 and over.

บทความนี้นำเสนอคำศัพท์และวิธีการผลิตวิสกี้เพื่อการศึกษา โดยยกตัวอย่าง SAKURAO และ TOGOUCHI มิได้มีเจตนาส่งเสริมการซื้อหรือการบริโภคเครื่องดื่มแอลกอฮอล์ สำหรับผู้อ่านอายุ 20 ปีขึ้นไป