Wyeast | 3638 Bavarian Wheat Ale | Beer Yeast | Activator Smack-Pack System™ | 100 Billion Cells

★★★★★ 4.6 128 reviews

$7.10
Price when purchased online
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$7.10
Price when purchased online
Free shipping Free 30-day returns

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Product details

Management number 232668533 Release Date 2026/06/21 List Price $2.84 Model Number 232668533
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  • 3638 is a complex alternative to the standard German wheat strain profile, producing apple, pear, and plum esters in addition to the dominant banana character
  • Esters are complemented nicely by clove and subtle vanilla phenolics
  • Activator Smack-Pack System™ "proofs" the yeast and shortens lag time when it hits your wort
  • When smacked, the Activator™ packet releases sugars and nutrients to initiate the culture's metabolism
  • Wyeast has been a pioneer in craft brewing for over 35 years and is committed to creating the finest fermentation products available
  • Although beneficial, cultures do not need to be activated prior to inoculation

A great all around German wheat beer strain!

A complex alternative to the standard German wheat strain profile. This strain produces apple, pear, and plum esters in addition to the dominant banana character. The esters are complemented nicely by clove and subtle vanilla phenolics. The balance can be manipulated towards ester production through increasing fermentation temperature, increasing the wort density, and decreasing the pitch rate. Over pitching can result in a near complete loss of banana character. Decreasing the ester level will allow a higher clove character to be perceived. Sulfur is commonly produced, but will dissipate with conditioning. This strain is very powdery and will remain in suspension for an extended amount of time following attenuation. This is true top cropping yeast and requires fermenter headspace of 33%.

Attenuation: 70-76%
Flocculation: Low
Alcohol Tolerance: 10%
Optimum Fermentation Temp: 64-75°F
Cell Count: 100 Billion

Styles:
Weissbier
Dunkles Weissbier
Weizenbock
Roggenbier

For best results we always recommend ordering an ice pack with your liquid yeast.

Please Note: When choosing an ice pack option beware that the liquid yeast will not arrive cold even when shipped together. Ice packs and insulated mailing options are designed to keep the yeast colder for longer during shipment, but they will not ensure that your yeast arrives cold. We will not replace liquid yeast that arrives warm. During warmer months we strongly recommend you choose dry yeast.

 
 

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128 ratings | 52 reviews
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