Drifine S

Overview

Drifine S is purified isinglass in convenient powder form. It is added to beer at the end of fermentation to speed maturation and improve filtration by removing yeasts and protein particles. For ease of use Drifine S in its standard form includes the necessary food grade acid, dispersal agent and preservative (sulphur dioxide) already blended.

Principle

The active component of Drifine S is isinglass (collagen). It is derived from the swim bladder of fish. Processing into finished form involves a regime of rigorous washing and sterilisation, followed by drying and milling. The precise nature of the action of collagen on yeast and proteins is not fully understood, and many suggestions have been promoted. Collagen exists in solution as tightly bound triple helix strands which possess both positive
and negative charged sites along their length. It is clear that the amino acid make-up of collagen, and specifically the high proportion of proline and hydroxyproline, contributes to its remarkable ability to remove both yeasts and proteins so effectively. In a typical application greater than 95% of yeast and 90% of protein particles are removed.

QUICK FACTS

Benefit 1

Efficient clarification at low addition rates.

Benefit 2

Unmatched 'brilliance.'

Benefit 3

Gentle action with no associated detrimental flavor changes.

Benefit 4

Compact sediment volume, therefore reduced losses.

Benefit 5

Effective at low temperatures.

Benefit 6

No additional clarifiers required.

Benefit 7

In addition to its excellent clarification properties.

Treatment Rates

Drifine S addition rate may vary but would typically be around 50 mg/l.

Application

Prepare a 1% w/v solution by first dispersing 5 g Drifine S in 500 ml cold water. After a 30 minute hydration period dissolve the Drifine S by mixing vigorously for 2 to 3 minutes. This is best achieved with a hand held domestic food blender. The Drifine S solution is added to the chilled beer at the end of fermentation. Immediately before addition of Drifine S the yeast sediment should be fully removed.

Data Sheet

Go Back

Vicfine

Vicfine has a moderate effect on sensitive protein reduction. Whilst not a beer stabilizer in its own right it contributes to the action of silica gel, and compliments PVPP. During settlement of flocculated solids, foam negative factors can be entrained. Brewers regularly notice that Vicfine treated beers have improved foam stability.

Reduced cold storage time.

Improved beer haze and stability.

Less re-work.

ISY Enhance

AB Vickers ISY Enhance™ is an inactivated specific yeast autolysate designed to increase body, mouthfeel, and drinkability in beer. The resulting product is smooth and clean with enhanced flavor perception.

Improved mouthfeel and drinkability in any beer style

Reduced harsh flavors and astringency

Increased body and complexity in lighter beer styles, including low alcohol and non-alcoholic beer

Greater balance and improved flavor perception

Alphafloc Paste

Alphafloc isinglass paste is produced from the clean maws of certain types of fish. These fish maws contain about 98% collagen on a dry ash-free basis. The paste form of isinglass comprises finely divided isinglass in an aqueous base with sodium metabisulphite as preservative. The fish maws are subjected to vigorous cleaning followed by wet size reduction via processing which avoids heat generation (thereby avoiding thermal degradation of the collagen).