In Scotland, the angels take roughly two percent a year. Fill a fresh cask with 500 litres of new make spirit, come back in twelve years, and roughly 100 litres have gone. Not spilled, not misused. Evaporated through wood that breathes more than most people realise.

The math is unforgiving. A cask losing two percent annually over twelve years loses about twenty-one percent of its volume. For independent bottlers like us, that means fewer bottles at the end of the wait. It also means something else.

Why the loss is part of the gain

As the volume drops, the remaining spirit changes in character. In cool, damp climates like Scotland, alcohol evaporates at a higher rate than water. The spirit itself is what rises into the warehouse air, which is exactly where the name comes from. The lighter, more volatile compounds leave first. What stays behind are the heavier, more complex esters and aldehydes, the compounds that give aged whisky its depth.

The angels are not simply taking from you. They are, in a sense, editing. Every year the cask makes a selection on your behalf, removing what is expendable and leaving behind what matters most.

Climate changes everything

This is where the story becomes interesting across our portfolio.

A cask maturing in the Scottish Highlands loses two percent a year and develops slowly, accumulating complexity over a decade or more in cool, damp air. A cask in Goa, where the Paul John distillery sits, might lose three to four percent annually, in heat and humidity that accelerates every interaction between spirit and wood. A cask in Israel, at the Milk & Honey distillery, matures in Mediterranean conditions that push flavour development faster than Scotland can manage.

What takes Speyside twelve years might take Goa five. The angel's share in warmer climates is not a loss to be mourned. It is the reason Indian and Israeli whiskies have found their voice so quickly.

What it means when we select a cask

When we taste a cask for potential purchase, we are tasting the result of years of angel's share. The whisky that remains is what survived that annual editing. The concentration, the barrel influence, the texture, all of it is shaped in part by how much of the spirit left, and what it took with it when it went.

Older casks from cooler climates yield fewer bottles. A twelve-year Speyside cask might give us 300 bottles where the original fill held 500 litres. That scarcity is not incidental. It is built into the nature of the spirit.

The angel's share is the reason single cask whisky is finite by definition. It is the reason no two casks are identical even from the same distillery and the same year. And it is one of the reasons we find this work worth doing.

The angels have good taste. We try to keep up.