Challenges for brewers with FAN and diacetyl
Consistent FAN levels and stable fermentation
With Novozymes enzymes, brewers gain consistent, higher levels of FAN and stable fermentation even in high-barley or high-adjunct brewing. Brewers also gain improved mash filtration and extract yields in the brewhouse – without compromising on beer foam stability – due to the changes the enzymes make in the protein matrix.

Reduce diacetyl and costs
A family of solutions
Your solutions for FAN and diacetyl control
To increase FAN, Novozymes offers Neutrase® 0.8 L, BrewQ® and FAN Boost™. These products provide predictable, consistent, higher levels of FAN when the brewer requires it, based on malt modification and choice of raw materials. These proteases do not adversely affect beer foam stability. Modification of the protein matrix by these solutions can also have a positive impact on wort filtration and extract yields in the brewhouse
Benefits:
- FAN control for improved yeast growth and stable fermentation
- FAN optimisation in high barley/adjunct brewing
- Improvement of mash filtration
- Yield improvement
Novozymes Maturex® Pro is a unique enzyme specially designed for the brewing industry, making it possible to rethink fermentation profiles of pilsner type beer, or any beer where diacetyl flavor is unwanted. Maturex® has been used for many years for quality and cost savings.
Benefits:
- No diacetyl off-flavors
- Shorten, or even by-pass rate-limiting warm maturation (diacetyl rest)
- Optimise vessel usage
- Increase beervolume - a reduction in fermentation means an increase in throughput
- Maintain high quality index of finished beer
- Increase "right first-time", less re-work
- Reduce energy consumption