---
title: What Is Single Pot Still Whiskey?
description: Single pot still whiskey is a style of Irish whiskey made by single distillery from a mash bill of malted and unmalted barley distilled in a pot still
image: https://blog.thepotstill.irish/hubfs/20190706_145759.jpg
---

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## The Pot Still

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# What Is Single Pot Still Whiskey?

By Craig Ellis

Author Bio: Craig's love for all things whiskey began when he visited his first distillery, Talisker in 2006. During his free time, he likes to visit distilleries around the globe, planning his travel around these locations. Craig created The Pot Still in 2016 when he first started to collect rare and unusual whiskeys. His whiskey collection has grown and grown since. Craig writes and reviews independently and is not commissioned by any brand or distillery. Craig's views and opinions are his own.

![What Is Single Pot Still Whiskey?](https://blog.thepotstill.irish/hubfs/20190706_145759.jpg)

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There are many different styles of whiskey, and single pot still whiskey is one of them. Single pot still whiskey is a style of Irish whiskey made by a single distillery from a mixed mashbill, such as a mash of malted and unmalted barley distilled in a pot still. Single refers to being from one single distillery, somewhat similar to [single malt whiskey](https://blog.thepotstill.irish/what-is-single-malt-whiskey), however, this style became defined by the addition of unmalted raw barley being added to the mash of just malt. It is possible to add small amounts of raw oats or wheat, which may have been used at times.

The addition of the unmalted component gives the pot still whiskey both a spicy element and a thicker texture than the standard malt whiskeys. If the whiskey has been distilled by another distillery, then the whiskey can not be called single pot still, but can therefore still be called pot still whiskey.

Single pot still whiskey was once the most popular and sought-after whiskey in the world, and was regularly referred to as pure pot still whiskey, Irish style whiskey, or simply put in Ireland, pot still whiskey. The reference of calling it 'Single Pot Still' only came into life in recent years due to the United States Tax and Trade Bureau's objection to the use of the term "pure" in labeling food and drink, and Single Pot Still was added to avoid these taxations...

However, the term is not to be confused with the concept of creating whiskey in a pot still, as single malts, bourbons, and ryes can also be created in a pot still. 

## The Science of Pot Still Distillation

The process to separate 2 or more liquids from a mixture comes with heat, and these liquids have different boiling points. The wash is poured into a still, mostly made from copper and heated using steam. This wash would have multiple elements including malted barley, alcohol, water, and sugar.

![What Is Single Pot Still Whiskey? Pot Still Whiskey Distillation](https://blog.thepotstill.irish/hs-fs/hubfs/What%20Is%20Single%20Pot%20Still%20Whiskey%3F%20Pot%20Still%20Whiskey%20Distillation.png?width=526&name=What%20Is%20Single%20Pot%20Still%20Whiskey%3F%20Pot%20Still%20Whiskey%20Distillation.png)

The alcohol is the main component that we are interested in separating here, and the alcohol and chemicals evaporate first at a lower boiling point, and this gas vapour travels upwards. It is then directed into another tube and cooled by cold water flowing constantly. The gas travels through this cold tube, condensing back into a liquid, and is collected. Depending on the wash, some other chemicals are also evaporated.

 

## The history of Single Pot Still Whiskey?

Whiskey has been distilled in Ireland since at least the 1400s and most likely as early as the 6th century. Single pot still whiskey emerged as a means of avoiding a tax introduced in 1785 on the use of malted barley. Although this tax was repealed in 1855, the popularity of the style endured until the emergence of blends in the late 19th and early 20th centuries.

In the 19th century, single pot still whiskey was the most popular style of whiskey in the world and formed the bulk of Ireland's whiskey exports, however, with Prohibition in the United States and the rise of cheaper, milder blended whiskeys in the 20th century, single pot still whiskey declined in popularity, and many formerly all-pot-still brands changed their production to become blends. By 1980, only two specialist bottlings remained in existence, Green Spot and Redbreast, with one in danger of being discontinued. However, in recent years, a resurgence in whiskey distilling in Ireland has led to the launch of several new single pot still whiskeys, such as [Teeling Whiskey Single Pot Still Whiskey](https://blog.thepotstill.irish/teeling-whiskey-single-pot-still).

![What Is Single Pot Still Whiskey?](https://blog.thepotstill.irish/hs-fs/hubfs/kilbeggan%20irish%20whiskey%20distillery%20oldest%20pot%20still.png?width=747&height=355&name=kilbeggan%20irish%20whiskey%20distillery%20oldest%20pot%20still.png)

 

## Legal definition

The standard definitions and regulations of Irish Whiskey also apply to Single Pot Still Whiskey, but in addition to the general regulations governing the production of Irish whiskey (e.g., geographical origin, aging in wooden casks for a minimum of three years), Irish government regulations stipulate that Irish pot still whiskey must be:

1. Distilled from a mash of a combination of malted barley, unmalted barley, and other unmalted cereals
2. Distilled in a pot still so that the distillate has the aroma and taste of the materials used
3. Made with a minimum of 30% malted barley and 30% unmalted barley

> In addition, the regulation documents state that:
> 
> Up to 5% of cereals other than malted and unmalted barley, such as oats and rye, may be used  
> Either double or triple distillation may be used, although traditionally most Irish pot still whiskey is triple distilled  
> The term "single" can be added if the Irish pot still whiskey is distilled on the site of a single distillery

 Tags: [Irish Whiskey](https://blog.thepotstill.irish/tag/irish-whiskey), [Whiskey](https://blog.thepotstill.irish/tag/whiskey), [Pot Still Whiskey](https://blog.thepotstill.irish/tag/pot-still-whiskey)

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