Description
WLE4900 Brewzyme-D – ALDC against diacetyl and hop creep
WLE4900 Brewzyme-D from White Labs is the enzyme alpha-acetolactate decarboxylase, ALDC for short. It counteracts the formation of diacetyl, one of the most common off-flavours in beer, and is also used to prevent hop creep when dry hopping. Breweries have long used ALDC, and Brewzyme-D is the same type of enzyme in a 10 ml pack for homebrewers.
Brewzyme-D is particularly suitable if you do not have the temperature control needed for a diacetyl rest after fermentation. With the correct dose, a diacetyl rest is not necessary.
Benefits of Brewzyme-D
- Reduces diacetyl production
- Reduces hop creep that can occur when dry hopping
- Significantly shortens maturation time
- Improves beer quality
How to use Brewzyme-D
Add 10 ml per 20 litres together with the yeast and/or together with the dry hops to prevent hop creep.
Technical data
- Enzyme: alpha-acetolactate decarboxylase (ALDC)
- Contents: 10 ml
- Dosage: 10 ml per 20 litres
- pH range: 4.0–7.0
- Temperature range: 10–40 °C
Frequently asked questions about WLE4900 Brewzyme-D
What is hop creep?
Hop creep is a secondary fermentation that can follow dry hopping. Enzymes from the hops break down sugars the yeast otherwise cannot use, and the yeast starts working again. This can result in more alcohol, more carbonation and diacetyl in the finished beer.
When should I add Brewzyme-D?
Add it with the yeast, with the dry hops, or both. The dosage is 10 ml per 20 litres.
Do I need a diacetyl rest when using Brewzyme-D?
No. With the correct dose, a diacetyl rest is not necessary. This makes the enzyme a good choice when you cannot raise the temperature towards the end of fermentation.
How much do I need for a 20-litre batch?
One 10 ml pack is enough for 20 litres.
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