Liquid beer yeast

Why liquid yeasts?
All beer brewers agree on 1 thing: yeast has a significant influence on the final flavour of your beer. The quality of your beer will increase by using liquid beer yeasts.

Wyeast is the world’s largest supplier of liquid yeast for home brewers. Specific yeast strains of well-known beers worldwide are carefully selected and cultivated in their modern laboratories and production units. Thanks to the unique ‘Smack-Pack’ packaging every home brewer is able to use a specific yeast culture for his/her beer.

WYEAST is a brand of liquid yeasts, wrapped in aluminium foil, which take effect at the time that the inner bag is smacked. Hence they are called "smack packs". The mechanism works as follows; inside the package is a small plastic pouch with a sterile nutrient solution with wort extract. If this is broken, the liquid mixes with the yeast in the aluminium foil, which will be activated and swells.

It may occur that a foil packaging is already slightly swollen, which is almost always due to a small amount of yeast nutrient left behind during packaging. However, this does not mean that the yeast has gone bad. The inner bag is still intact and the yeast can still be used perfectly.

Using them is very easy: take the smack pack out of the refrigerator, locate the inside bag with your fingers and ‘smack’ it with your fist so it bursts open. Shake the package thoroughly and let it swell at room temperature. Now you’ll have a ready-made pure and sterile yeast culture. Finally cut the package open and pour the yeast into your cooled wort.

WYEAST yeasts are available in 2 packages: SMACK PACK ACTIVATOR and YEAST SLURRIES.

Click here to view a Wyeast instruction film!


Smack pack ACTIVATOR
Meant for the larger homebrewer or small microbrewery: sufficient for direct addition up to 20 l of wort. Sterile smackpack. Contains 125 ml, nutritient included. Long conservation possible: 6 months after production date.

Yeast suspension
For microbreweries. Professional packing with 1 litre of highly concentrated yeast slurry of guaranteed quality. Delivered direct from WYEAST to you by FEDERAL EXPRESS. Conservation: 2 weeks. Contact our wholesale department for information, prices, yearly contracts, etc. Available for ALL types.

Your personal yeast bank is only a click away:
Making the right choice of yeast is critical for every brewer. With our Wyeast suspensions we do offer over 50 high quality fresh yeasts with different characteristics, giving smaller breweries the possibility to make distinctive beers with complex flavour profiles. Every Wyeast production is thoroughly tested and guaranteed for purity and viability (>99 %) before shipment.

High quality fresh yeasts, cultivated on order, grown in a sterile malt based nutrient enriched medium.
Shipped directly from the laboratory to your brewery in insulated boxes with ice-packs for optimal temperature.
More than 50 different yeast strains available to differentiate your beer from the competition.
Usable for both direct pitching and propagation.
Can be harvested and re-pitched 6-8 times, making the use of suspension a lot more profitable.
Stability : Best used when fresh, use within 7 days of receipt. Store at 1-2 °C.