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Placer Ultimate Brewing Society

Placer Ultimate Brewing Society. Vice President Report. Beer Style Calendar. Next Meeting . PUBS BrewTech Topic: Fermentation Style of the Month Beer: Cream Ales. Yeast Starters. What is a Yeast Starter?.

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Placer Ultimate Brewing Society

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  1. Placer Ultimate Brewing Society Vice President Report

  2. Beer Style Calendar

  3. Next Meeting • PUBS BrewTech Topic: • Fermentation • Style of the Month Beer: • Cream Ales

  4. Yeast Starters

  5. What is a Yeast Starter? A small amount of wort (unfermented beer) that is used to grow and prepare yeast to ferment a batch of beer.

  6. Why Do I Need One? • To provide the enough healthy yeast to successfully ferment a batch of beer. • Pitching the proper amount of healthy yeast results in: • Reduced chance of contamination because fermentation process starts much quicker so wild yeast and bacteria are less likely to take hold. • Reduced off-flavors through proper yeast growth. Under and over pitching yeast can impart unwanted flavors in beer. • Saves cost by not having to purchase additional packages of yeast.

  7. Yeast Pitching Rate Recommended Pitching Rate: Ale: 0.75 Million Cells / ml of Wort Lager: 1.50 Million Cells / ml of Wort Sources:- MrMalty.com- BeerSmith

  8. Yeast Pitching Rate Calculation (Pitching Rate) x (Milliters of Wort) x (Degrees Plato of Wort) = Desired Cells Example: 5 Gallons of 1.048 Ale 5 Gallons  18,927 ml 1.048  12 Plato (750,000) x (18,927) x (12)  170 Billion Cells

  9. What Do I Need? • Required • DME • Mixing Container • Stirrer (Egg Wisk) • * Boiling Container • * Fermenting Container • Sanitizer • Water (Starter/Chill) • A Beer of Course • * Erlenmeyer Flask Recommended • Optional • Yeast Nutrient • Ice • Scale • Stir Plate • Foam Control

  10. How Do I Make One? Measure out you DME Add the Yeast Nutrient directly to the DME

  11. How Do I Make One? Add cold water and stir Note: amount of water is not Important at this point Pour mixture into boil container

  12. How Do I Make One? Add desired amount of water (4 liters in this case) Add Anti-Foaming Agent

  13. How Do I Make One? Apply Medium Heat… and bring to boil. Boil for ~15 minutes. Note: No Foam!

  14. How Do I Make One? While starter is boiling, prepare Chilling pan by adding cold water. If you’re using a stir plan, sanitize the stir bar.

  15. How Do I Make One? After the 15 minute boil is done, chill the Starter by placing it in cold water. Note: If using a Erlenmeyer cold water and wort should be the same level. After wort cools to between 100 – 120 (may need to replace cold water a few times) I like to add ice to speed process along.

  16. How Do I Make One? Sanitize both the boil container and Yeast package after starter wort is Chiller (< 70F)

  17. How Do I Make One? Add yeast… And Airate (shake), or place on stir plate.

  18. When Is It Done? Yeast growth is done within 12-24 hours. Note the color change.

  19. Pitching the Starter/Yeast • When the yeast growth is do, you can: • Pitch starter directly into your batch of beer (2l max. for 5G), or • Chill the starter for a few days, so the yeast drops out, and decant the wort • off the yeast. Warm the yeast to pitching temp the before using. • It’s also good to add little bit of chilled wort on brew day to get • the yeast active again.

  20. Resources:MrMalty.comBeersmith.comQuestions?

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