silkywhisky
Glenglassaugh / Highland

GLENGLASSAUGH Portsoy

0.91× fair value NAS rating 5.0/5 · n=3
cheapest
€55.95
topdrinks
intrinsic
€80.50
N
4

Is it worth the price?

GLENGLASSAUGH Portsoy is a Highland single malt Scotch from the Glenglassaugh distillery, released without an age statement. Tasters score it 5.0 out of 5 across 3 reviews. It is tracked at 4 retailers, ranging from €55.95 to €86.95, while the valuation model estimates a fair price of around €80.50. That is 0.91× the model estimate — almost exactly the quality-predicted price, with no meaningful brand premium. Of the 3 Glenglassaugh bottlings priced here, this is the weakest value.

Retailers tracked

Retailer Price
topdrinks €55.95
whisky.fr €72.90
whiskylodge €74.00
thewhiskyshop €86.95

How we got this number

The valuation model predicts a price from this bottling's inputs. The multiple is the actual market price divided by that prediction.

Inputs
Rating
5.00 / 5
Age
No age statement
Region
Highland
Distillery tier
Mid
Result
Predicted price
€80.50
Actual price (median)
€73.45
Multiple
0.91×
Verdict band
fair value (0.80× < … ≤ 1.20×)

See the regression's coefficients →

Methodology estimate

The deterministic model from methodology.md: production cost per litre × bottle size, plus maturation cost per year, plus a cask premium, times an ABV factor — then multiplied by a quality grade summed across six 0–3 axes.

Cost floor
Production (€0.18/cl × 70 cl)
€12.60
Maturation (NAS→5 × €1.20/year)
€6.92
Cask premium (undeclared)
+€0.00
× ABV factor
×1.20
Cost floor
€23.42

NAS treated as 5 years for maturation cost (paper convention).

Quality grade (six 0–3 axes)
  • Process distinctness
    long closure 1986-2008
    2 / 3
  • Cask provenance
    cask type not declared on bottle
    0 / 3
  • Bottling integrity
    49.1% ABV; non-chill-filtered inferred from ABV; E150a caramel colouring not disclosed
    2 / 3
  • Ownership
    Brown-Forman — independent or smaller group
    2 / 3
  • Heritage
    founded 1875 (151 years of operation); closure 1986-2008
    2 / 3
  • Reputation
    5.0/5 across 3 reviews
    3 / 3
Quality score
11 / 18
Quality multiplier
×1.92
Intrinsic and multiple
Intrinsic value
€44.90
Actual price (median)
€73.45
Multiple
1.64×
Verdict band
mild premium

Maturation context

Highland · rolling 12 months: 513 mm at Cullen (6 km). Scotland N rolling 12-month rainfall2,223 mm, +30.70% vs 1995-2024 median.

Other bottlings from Glenglassaugh