Sour beers
Have you ever heard of sour ales? This style, also known as spontaneous fermentation or lambic beers, is a true Belgian specialty with a highly particular production process. In fact, to brew a lambic beer, there is a special recipe. First of all, the wort must be made also of wheat and not only of barley malt. Aged, dry hop, which is less bitter, is added during cooking. However the main specificity of spontaneous fermentation beers is the following step. After cooking, the wort is left exposed to open air for several hours in shallow, flat metal pans placed under wooden roofs. This way, wild yeasts can inoculate the precious liquid, lending sour ales their distinctive taste. This process is generally only possible between October and May, as in the summer months it is too hot for it to work properly. The mixture is then poured into barrels for fermentation. This process may take a long time, even years. And this is how you make a lambic beer!
Lambic beers are rarely drunk pure, they are mostly the base for three main types of beer. The first one, probably the least popular, is the faro. The brewer adds candy sugar to the lambic, to make a sour yet rather sweet and round beer. Given its short shelf life, faro is rarely bottled. A classic of this style is the Lindemans Faro Lambic.
The second type is the gueuze, which is produced with a mix of young (6 to 12 months of fermentation) and old (up to 3 years) lambic beers. This triggers a second fermentation in the bottle. This kind is known for being the sourest of all, as well as the most traditional of spontaneous fermentation beers. The Oude Gueuze from Timmermans, several times award-winner, and the Gueuze Lambic Bio of the Cantillon brewery are two illustrious representatives of this category. Numerous other gueuzes are worth the detour as well!
Finally, fruity lambics. As suggested by the name, this type of beer is produced by mixing lambic and fruit, to obtain relatively sweet beets. The most used is cherry, to produce the kriek. A good representative is the Liefmans Kriek Brut. The same can be done with lots of other types of fruit, and the Lindemans brewery has made this its specialty (Pêcheresse, Framboise, Cassis, etc.).
Be as it may, sour ales never cease to amaze!
Our selection of sour beers, buy our beer online

Lindemans Cassis
Fruity beer based on Lambic and blackcurrant, a marriage balancing sweetness and acidity

Lindemans Framboise
Delicious seasonal beer based on Lambic, with 30% pure raspberry juice.

Lindemans Gueuze Cuvée René
Created by cutting 2/3 young with 1/3 old Lambic and in-bottle fermentation.

Lindemans Kriek
Made from unsweetened, freshly squeezed cherry juice, macerated in casks with Lambic ...

Lindemans Kriek Cuvée René
Made from unsweetened, freshly squeezed cherry juice, macerated in casks with Lambic ...

Lindemans Oude Gueuze Francisca *
Golden colour, well-balanced tart taste with nice dry finish.
Temporarily out of stock

Horal Oude Gueuze Megablend 2021
It is a blend of young and old lambics, contributed by all HORAL members: Boon, De Cam ...

Horal Oude Gueuze Megablend 2022
The Megablend 2022 is a mixture of young and old lambic .

Cantillon Gueuze-Lambic Bio *
This is the result of a complex mixture of these lambics of different ages and tastes ...
Temporarily out of stock

Boon Mariage Parfait Kriek
This is the classic Oude Kriek Mariage Parfait by Boon. Made with sourcherries, mascerated ...
Temporarily out of stock

Boon Oude Gueuze
Geuze Boon old style is a monument to taste with an alcohol content of 7%.

Boon Oude Gueuze VAT 31
An extra long maturation of four and a half years in the oak foeder N°31 created this ...

Timmermans Schaarbeek Kriek Griotteke
LAMBIC FRUIT WITH SCHAARBEEK CHERRIES (GRIOTTES). BRIGHT RED IN COLOR AND WITH A TART-SUGAR ...

Fluegge Fraenk
Fränk is fermented with lactic acid bacteria and stored on passion fruit puree

Overworks Spontaneity 2
Aged in puncheons for 1 year and bottled unfiltered, an intensely complex beer.
Temporarily out of stock

Maryensztadt Bonbon Mango Apricot Nectarine Vanilla
Pastry Sour Fruit Beer with mango, apricot, nectarine and vanilla
Temporarily out of stock

Maryensztadt Bonbon Orange Grapefruit Coconut
Sweet fruit beer with orange, grapefruit and coconut
Temporarily out of stock

Maryensztadt SourBomb Pink Guava Rhubarb Lemon
Imperial Sour Fruit Beer with pink guava, rhubarb and lemon
Temporarily out of stock

Maryensztadt Sourtime Mango Imperial IPA
La biere aigre, fruitee equilibree par une delicate amertume.
Temporarily out of stock

Maryensztadt Sour Bomb
Incredibly sour due to the addition of fruits: calamansi, lime and passion fruit.
Temporarily out of stock

Maryensztadt Sourtime Blackcurrant
Light beer in the style of sour, but with the addition of blackcurrant.
Temporarily out of stock

Dugges Mango Mango Mango
It might sound like an echo, but it’s not. This collaboration with Stillwater Artisanal ...

Dugges Mango Mango Mango
It might sound like an echo, but it’s not. This collaboration with Stillwater Artisanal ...
Temporarily out of stock
Dugges Tropic Thunder
Tropic Thunder is a joint effort with nomadic brewer Brian Strumke of Stillwater Artisanal ...
Temporarily out of stock

Ten Hands DayDream
Tropical mango meets classical Swedish forest berries; blackberries and raspberries
Temporarily out of stock

Collective Arts Jam Up The Mash
Appeasing both hop and sour heads with sour and hops in perfect, thirst quenching melody

Varionica Passion Sour
This extremely refreshing beer is recognizable by salty,sour and passion fruit flavor
Temporarily out of stock

BFM Saint Bon Chien *
This mixed fermentation beer has toured the world with its clear tartness, matured for ...

Castrum Magnum Officina Della Birra *
In the cellars of the old brewery they refine some of our most exclusive recipes in oak ...
Temporarily out of stock
Delivery by the Swiss post or Drive-In (Pick up orders directly at the shops in St-Légier or Aigle)
Secure online payment
We answer to all your questions by phone on 021 943 51 81 or by mail at info@amstein.ch concerning order, delivery or product problems.
For questions relating to the website (connection issues, bad display, ...), please write us at eshop@amstein.ch.