Brewferm Biersol · Silica Sol Wort Clarifier · 100 ml

Clearer wort, clearer beer. A few millilitres of Biersol at the end of the boil help the hot-break proteins separate out, so a brighter beer goes into the fermenter.

Silica sol · 3–5 ml per 10 L · End of the boil · Also fines young beer · Keep frost-free · 100 ml

What it does in your beer

Biersol is a silica sol: colloidal silicon dioxide in a slightly alkaline water solution. Dosed at the end of the boil, it improves the clarification of proteins in the wort — the so-called hot trub — and contributes to a clearer beer.

Brewferm also lists it as a clarifier for young beer, so it has a second job after the boil.

At a glance

How much for a 20 L batch

3–5 ml per 10 L means 6–10 ml for 20 L. One 100 ml bottle covers 10 batches at the top dose, or 16 at the bottom one.

How to use

• Measure 3–5 ml for every 10 L of wort — a small syringe makes this easy.
• Add it at the end of the boil.
• Clearing a young beer instead? Brewferm lists that use too; the only dose it publishes is 3–5 ml per 10 L.
• Keep it in its original bottle: the safety data sheet advises polyolefin containers and warns against steel.

Pairs well with

Brewing a pale lager where every bit of clarity shows? Try it with Czech Pilsner Malt and SafLager W34/70.

Prefer a tablet in the kettle? Protafloc is our carrageenan-based kettle fining.

Storage & shelf life

• Store frost-free and away from light.
• Keep the bottle closed and in its original container.

Food information

• Food business operator: Brouwland BV, Korspelsesteenweg 86, 3581 Beverlo, Belgium
• Name: Biersol — silica sol for wort and beer clarification
• Ingredients: colloidal silicon dioxide in a slightly alkaline water solution
• Allergens: none stated by the manufacturer
• Net quantity: 100 ml
• Storage: frost-free, protected from light

Údaje o potravině (CZ)

• Název: Biersol – křemičitý sol k čiření mladiny a piva
• Složení: koloidní oxid křemičitý v mírně zásaditém vodném roztoku
• Alergeny: výrobce neuvádí
• Čisté množství: 100 ml
• Skladování: chránit před mrazem a světlem
• Provozovatel potravinářského podniku: Brouwland BV, Korspelsesteenweg 86, 3581 Beverlo, Belgium

Good to know

• Brewferm declares Biersol appropriate for food use.
• Not classified as hazardous in its safety data sheet. If it gets in your eyes, flush thoroughly with running water and seek medical advice.
• Don't let it freeze: "Storage frost-free!" is the one line Brewferm ends with an exclamation mark.
• Brewing ingredients reach you from our partner warehouse in the Czech Republic, in their own parcel.

FAQ

When do I add Biersol?
At the end of the boil, 3–5 ml per 10 L.

How much for 20 L?
6–10 ml.

Can I use it in the fermenter?
Brewferm says it can also be used as a clarifier in young beers.

How should I store it?
Frost-free, away from light, in the original bottle.