33 cl Mercurius bottle, yellow and light blue label with the wording Weiss
Il cielo · Birrificio Aries

Mercurius

33 cl bottle

The wheat in the recipe, and the banana that comes out

€5,50

This beer

What it is, and what is in it

In weiss beers, the banana aroma is not an additive: it's produced by the yeast during fermentation, and it's a sign that the strain worked as it should have. Here, it's present, along with citrus and spicy notes.

In the recipe, alongside barley malt, there's wheat — that's what gives the beer its persistent head and full mouthfeel. The hops, however, are kept very low: twelve bitterness units, the lowest value in the range, because in this style, bitterness would overpower everything else.

Clear golden color, sparkling taste, bittersweet finish. 4.7% ABV: it drinks quickly, and it's made for that.

Ingredients
Water, barley malt, wheat, hops, sugar, yeast.
Allergens
Gluten (barley malt, wheat).
At the table

What the brewery drinks it with

The pairings declared for this beer.

  • Red meat
  • Fish and seafood
  • Savory pies
  • Pizza and spicy dishes
The words of this beer

The label’s terms, explained

What a Weiss is

The wheat beer of Bavaria — Weissbier, white beer, or Weizen, wheat beer. Two things define it: a substantial share of wheat alongside the barley malt, and a particular yeast that during fermentation produces aromas of banana and clove. The color is golden and the liquid is hazy, because the yeast stays in suspension.

The wheat

It is not a secondary ingredient: it is what gives the style its name. Wheat carries more protein than barley, and protein is what holds the head up — a weiss makes a tall, dense head that lasts. The same proteins give the haze and the full mouthfeel. It is a grain with gluten, and that is why it appears among the allergens together with barley.

The banana comes from the yeast

The banana smell of a weiss is not a flavoring. It is isoamyl acetate, a molecule the yeast produces during fermentation, the more so the higher the temperature it works at. Along with it the strain produces the phenol that smells of clove. Picking them up means the yeast has worked the way the style asks.

What IBUs are

International Bitterness Units: the laboratory measure of the bittering compounds the hops have given up to the beer. An industrial pale lager sits around 10-20, a pale ale between 30 and 45, a modern IPA often goes past 60. In a weiss the number is deliberately low: the bitterness would cover the banana and the spice, which are the reason this style is drunk.

0Mercurius · 12 IBU100
On the label

What it says on the bottle

The mandatory label information, transcribed from the label of the size on sale.

Ingredients
Water, barley malt, wheat, hops, sugar, yeast.
Allergens
Gluten (barley malt, wheat).
Contents
33 cl bottle
Place of production
Produced in San Pierino, Fucecchio (FI)
Average values per 100 ml
Energy 163 kJ / 39 kcal
Fat 0 g
of which saturated fatty acids 0 g
Carbohydrate 3,1 g
of which sugars 0,5 g
Protein 0,4 g
Salt <0,01 g
Alcohol (ethanol) 3,7 g
The brewery

Where and how it is made

Daniele Nespeca, per Birrificio Aries, in Fucecchio.

A two-hectoliter brew · from barley to bottle, all in house

All 76 products by Birrificio Aries
How it is made
Selection of raw materials, barley milling, mashing, filtration, whirlpool, yeast pitching, primary fermentation in fermenter, secondary fermentation in bottle or keg. All stages on-site: 2 hl brew kettle and two 600 l temperature-controlled stainless steel conical fermenters.
Other sizes
33 cl bottle; 24 l keg.