wlp800 starter

[Mark1964]

The above yeast ferments cool just wondered if anyone has ever made a starter with it and if so what temp was used to make the yeast start to work?????????? :thumb:

 

[Mark1964]

Made the starter yesterday no signs of life as yet its in the fermentation cupboard at 20 deg c might be a duff yeast as use by date was 14th May. Ill give it a while then if it doesnt start fermenting its down the sink :x

 

[borischarlton]

Mark,

Read this taked from the Whitelabs site:-


In a medium sauce pan, add 2 pints of water and 1 cup Dried Malt Extract (DME). Mix well and boil the solution for about 10 minutes to sterilize. Cover and cool the pan to room temperature in an ice bath. This will give you a wort of approximately 1.040 OG. Keeping the Original Gravity low is important because you want to keep the yeast in its growth phase, rather than its fermentation phase. The fermentation phase will create alcohol which can be toxic to yeast in high concentrations.

Pour the wort into a sanitized glass container (flask, growler, etc.) and pitch the vial of yeast. Cover the top of the container with a sanitized piece of aluminum foil so that it is flush with the container, but will still allow CO2 to escape. Vigorously shake or swirl the container to get as much oxygen dissolved in the solution as possible. Allow the starter to sit at room temperature for 12-24 hours, occasionally shaking it to keep the solution aerated.

You probably won’t see any visible activity, but the yeast is busy taking up the oxygen and sugars in the solution and growing new cells. After the yeast has consumed all of the nutrients and oxygen, it will form a milky white layer on the bottom of the container. If you are not planning on pitching the yeast right away, you can store it in the refrigerator with the foil still in place. When you are ready to brew, decant off most of the clear liquid from the top, being careful not to disturb the yeast layer below. Once the yeast and your wort are at approximately the same (room) temperature, rouse the starter yeast into suspension and pitch the entire quantity into your fermenter.

Typical Starter Volumes for 5 gallons:
To activate the yeast: 1 pint (with ½ cup DME)
To revitalize yeast past its Best Before Date: 2 pints (with 1 cup DME)
To brew a high gravity beer: 2 pints (with 1 cup DME)
To brew a lager beer, starting fermentation 50-55F: 4 pints (with 2 cups DME)


I am sure your yeast will be fine.

Rob

 

[Mark1964]

cheers for that i made a 2 litre starter with 200g of light spray malt. Its in my fermentation cupboard at 22 deg c at the moment showing no signs of life. Will wait to see what happens but its best before date was 14th May :thumb:

 

[spsmike]

I used this last week. Made starter at 20 deg 48 hrs before, no sign of life. Pitched at 9 deg and fermenting at 11 deg, all going well. wlp 830 was the same. goodluck.

 

[Mark1964]

I put the starter in our fermenting cupboard and raised the temp to 23 deg c its bubbling away now. Will be making the pilsner on Saturday which will give the yeast plenty of time to grow