Mariage Parfait is Boon’s top-tier gueuze, blended from 95% lambic aged at least three years and 5% young lambic to restart fermentation, then bottle-conditioned for up to two decades of shelf life. At 8% ABV it is noticeably stronger than most gueuze, and the extra alcohol brings a rounder, more vinous character that some drinkers prefer to the sharper, drier standard release.
Boon Oude Geuze Mariage Parfait at a glance
| Style | Belgian oude gueuze (lambic) |
| ABV | 8% |
| Calories | Around 210 per 12 fl oz |
| Origin | Brouwerij Boon, Lembeek, Belgium |
| Ingredients | 95% lambic aged 3+ years, 5% young lambic, wild yeast and bacteria |
| Vegan | Yes |
| Gluten free | No, contains barley and wheat |
| Typical price | Around $15 to $22 for a 375ml or 750ml bottle |
How it tastes, by the numbers
Mariage Parfait trades a little of the driest gueuze’s rawness for a rounder, wine-like character.
The full review
It pours a hazy pale gold with a modest white head that fades quickly, typical for the higher-ABV style. The nose carries soft raspberry and green grape alongside the expected wild-yeast funk, with a vanilla and oak sweetness from the barrel ageing that is more pronounced than in Boon’s standard gueuze.
On the palate it is tart but rounder and less aggressive than most oude gueuze, with mild sourness balanced by a vinous, almost sparkling-wine character, herbal green tea notes and a warming finish from the higher alcohol. It reads closer to a dry cava than a typical sour beer.
This is a good bridge beer for wine drinkers curious about lambic: still clearly sour and funky, but softer and more approachable than Cantillon or 3 Fonteinen, with the strength to make it feel like an occasion beer rather than a session pour.
A gueuze built to bridge the gap between beer and sparkling wine, and it pulls that off convincingly.
- Rounder, more approachable than most traditional gueuze
- 20-year shelf life makes it a genuine cellaring beer
- Strong enough at 8% to feel like a special-occasion pour
- Less bone-dry and funky than purists may want
- Higher ABV means it is not a session beer
- Pricier than Boon’s standard gueuze
Who it is for
Wine drinkers and gueuze newcomers who want the traditional lambic experience without the harshest acidity, plus collectors who like a beer that can sit in a cellar for years.
Boon Oude Geuze Mariage Parfait FAQs
What does Boon Mariage Parfait taste like?
Soft raspberry and green grape aromas, mild lactic sourness, herbal green tea notes and a vinous, wine-like character from the barrel ageing and higher alcohol.
How strong is Boon Mariage Parfait?
8% ABV, notably stronger than most gueuze, which typically sit around 5 to 6%.
What does Mariage Parfait mean?
French for perfect marriage, referring to the blend of aged and young lambic that creates the final beer.
Is Boon Mariage Parfait gluten free?
No, it is brewed from barley malt and wheat.
How long can I age Boon Mariage Parfait?
Bottles are designed to be cellared for up to 20 years, developing more oxidative, sherry-like character over time.
Where is Boon brewed?
In Lembeek, Belgium, home to one of the largest lambic barrel stocks in the country.
Where to find it
Sold in 375ml and 750ml bottles through Belgian beer specialists and better-stocked bottle shops internationally; not typically found in general supermarkets.
The verdict
Boon Oude Geuze Mariage Parfait is a rounder, more vinous take on traditional gueuze that makes an excellent entry point for wine drinkers curious about lambic. A well-balanced four point three out of five.
