The Importance of Yeast Nutrition for a Successful Fermentation
Yeast nutrition is an essential factor in the overall health and success of fermentation. Monitoring yeast health and managing nutrient requirements not only allows for regular and complete fermentations but enhances sensory perception of a beer.
Nitrogen, the most important yeast nutrient, is a key factor that has a significant impact on fermentation. Similarly other nutrients such as vitamins, minerals, salts etc. are also critical for yeast cells to thrive and perform optimally. But what happens when these nutrients fall short? Or what if there are not enough nutrients in the wort? Well, there are many possibilities such as slow/stuck fermentation, yeast stress, off-flavour production and plenty more.
Majority of the yeast nutrition is derived from the brewing ingredients. In some cases where there’s a use of adjuncts in larger quantities, yeast nutrients tend to fall short. For scenarios like these, yeast nutrients are manually added in which help and promote the growth of yeast cells and increase free amino nitrogen (FAN) which eventually improves fermentation and increases efficiency of the final product.
To improve the fermentation quality and add efficiency to the brewing process, Praras® Biosciences Pvt. Ltd. has a wide range of products for every requirement including yeast nutrition. The company specialises in providing solutions for product and/or process improvement with a major focus on sustainability. With products such as FermAid® BF and FermAid®B, fermentation capacity can be significantly increased. Let’s look into these products in detail down below.
FermAid® BF is a user-friendly, Polydimethylsiloxane based product. In the present scenario, where the breweries are compelled to work under best of efficiencies due to the competitive atmosphere in the industries, new technologies are most sought after. FermAid® BF enables breweries to increase the fermentation capacity by at least 10% without any infrastructure investments.
– Increased fermentation capacity by 10% by reduced fermentation headspace.
– FermAid® BF is highly recommended for process intensification.
– FermAid® BF is a very stable product that performs best under normal wort fermentation conditions of pH 3.5 – 6.5 & temperatures ranging from 10 – 100oC.
– FermAid® BF is effective at concentrations of 3 – 5g per HL wort.
– FermAid® BF may be added in the fermentation tank along with the feeding of seed. It may be added in the media used for scaling up the yeast culture.
FermAid® B is an optimised formulation of Biochemical and Nutrients to improve the fermentation of brewery wort especially with higher adjuncts. In the present scenario, where the breweries are compelled to work under best of efficiencies due to the competitive atmosphere in the industries, new technologies are most sought after.
One such technology is to improve the fermentation quality. In this effort, industries are opting to use yeast cultures which are designed to produce quality beer. These cultures being much specialised tend to be very fastidious with regards to growth conditions and nutrient requirements. FermAid® B supports yeast to produce quality beer with appropriate fermentation attenuation.
– Reduces early yeast flocculation.
– Ensures vigorous yeast fermentation and thus prevents the growth of contaminating organisms which may produce off flavours in the beer.
– The yeast requirement may be reduced.
– Eliminates sluggish fermentation which may bring about stuck fermentation.
– Increase in FAN level in wort: FermAid® B dosage of 10g/HL improves the Free Amino Nitrogen levels by 30%.
Under normal wort fermentation conditions of pH 3.5- 6.5 & temperatures of 10oC – 40oC, FermAid® B is effective at concentrations of 10-20 g/HL wort.
– FermAid® B may be added in the fermentation tank. It should be added along with the feeding of seed into the fermentation tank. It may be added in the media used for scaling up the yeast culture.
– FermAid® B may be added in the Wort Kettle to avoid contamination issues during handling.
Overall, it is possible to have successful fermentations with or without added nutrients. However, for best possible results in high-gravity brewing or whenever in the need of consistent fermentations, nutrients are essential and an obvious choice. Yeast is a living cell and it is really crucial that we control the environment and make sure that the cells are in good health.