Description
A liquid yeast slurry used for the production of alcoholic beverages.
Typical Physical and Chemical Properties
Appearance: White to tan colored slurry
pH: | 4.0 - 5.2 |
Density: | ~1.0g/ml |
Total Viable Cells/L: | 1 x1012 |
Standard Viable Cells/ml: | 1 x109 |
Concentrated Viable Cells/ml: | Specific To Order |
“Concentrated” Packaging
- Some strains propagate to high cell densities.
- To lower shipping costs, these strains may be packaged at concentrated levels (same total cells in less volume).
- Contact us for specific packaged cell count (cells/ml.)
Typical Microbiological Properties
- Colony morphology on WLN
- Consistent with the original mother culture.
- Single morphology.
- Growth on UBA+ (aerobic and anaerobic)
- Lawn growth
- Less than 1 large or variable colored colony present per 1 X 108 culture cells.
- Growth on WLN (aerobic and anaerobic)
- Lawn growth
- Less than (1) large or variable colored colony present per 1 X 108 culture cells.
- Growth on LCSM for non-STA1+ strains (aerobic)
- Less than 1 CFU per 1 X 108 culture cells
- qPCR detection (Negative Results)
- Saccharomyces cerevisiae var. diastaticus
- Lactobacillus sp.
- Pediococcus sp.
- Hop resistant bacteria.
- Positive results
- Brettanomyces
Product Usage
Pitch Rate
Desired pitch rates may vary with fermentation conditions.
* Dial in your fermentation with our brewing calculators
Wort Volume (Bbl) | Liters Pitched | Pitch Rate (cells/ml) |
1 | 0.5 | 5,500,000 |
1 | 1.0 | 11,000,000 |
1 | 1.5 | 16,500,000 |
1 | 2.0 | 22,000,000 |
Pitch Temp.
Directly add refrigerated yeast slurry to wort at the desired fermentation temperature.
Oxygenation
Oxygenate wort to achieve a DO range of 15-25ppm DO.
- Check out our oxygenation video for more information
Storage and Shelf Life
- Store the cultures at or as close to 33°F as possible.
- Do not freeze.
- The shelf life is dependent on the strain and the storage temperature.
- Use the yeast within 2 weeks of delivery.
- For longer storage, please contact customer service for guidance.
Packaging
- Rigid 1,2,4, and 8L food grade HDPE containers.
- Volume per container dependent on order size.
Certification
Kosher Pareve