Ten Scotch whiskies are to be released this autumn from operational and silent distilleries, all of which have been chosen as model examples of the Diageo Scotch portfolio.

The oldest release in this year’s series is Cambus 40-year-old, a single grain whisky from the Diageo-owned distillery that closed in 1993, carrying a price tag of £750.

The 2016 Special Releases also feature a 37-year-old bottling of Port Ellen, the silent distillery’s 16th appearance in the range and the oldest expression released to date. This year’s bottling will set purchasers back £2,500, £100 more than last year’s 32-year-old expression.

Also returning for another year is an unpeated Caol Ila, this time as a 15-year-old, and Lagavulin 12-year-old.

Dr Nick Morgan, head of whisky outreach at Diageo, said: ‘The unveiling of the Special Releases range is a moment I look forward to year after year.

‘The variety and quality of whiskies in the collection is simply fantastic, and once again we’re confident enthusiasts will discover new favourites in unusual and rare releases.’

Diageo’s Special Releases series was created in 2001 in response to growing demand for rare and unusual expressions.

The Diageo 2016 Special Releases include:

Auchroisk 25-year-old, 51.2% abv

Distilled 1990

Availability: 3,954 bottles worldwide

RRP: £280

Brora 38-year-old, 48.6% abv

Distilled 1977

Availability: 2,984 bottles worldwide

RRP: £1,450

Cambus 40-year-old, 52.7% abv

Distilled 1975

Availability: 1,812 bottles worldwide

RRP: £750

Caol Ila unpeated 15-year-old, 61.5% abv

Distilled 2000

Availability: Limited quantities worldwide

RRP: £90

Cragganmore (NAS), 55.7% abv

Availability: 4,932 bottles worldwide

RRP: £400

Glenkinchie 24-year-old, 57.2% abv

Distilled 1991

Availability: 5,928 bottles worldwide

RRP: £300

Lagavulin 12-year-old, 57.7% abv

Availability: Limited quantities worldwide

RRP: £80

Linkwood 37-year-old, 50.3% abv

Distilled 1978

Availability: 6,114 bottles worldwide

RRP: £600

Mannochmore 25-year-old, 53.4% abv

Distilled 1990

Availability: 3,954 bottles worldwide

RRP: £250

Port Ellen 37-year-old, 55.2% abv

Distilled 1978

Availability: 2,940 bottles worldwide

RRP: £2,500