How old is my White Labs Yeast?

The shelf life for White Labs Yeast is four months. Yeast used after this point is usually fine, but lag times will be longer. There will be living yeast in most vials for 6-12 months, so if a starter is made to activate the yeast, successful fermentations can be carried out with aged yeast.

What is the shelf life of White Labs Yeast?

4 Months
Quick Answer: 4 Months Long Answer: Yeast is a living organism. As such, it needs to exist in certain conditions to survive. Dry yeast can stay alive for about one year, but yeast in liquid form-even though it’s superior in taste and performance is more perishable.

How many yeast cells are in a white lab?

White Labs recommends using one fresh liquid yeast package to ferment an up to 1.050 original gravity 5-gallon batch of homebrew. White Labs states their packaging is made to contain 100 Billion cells and notes the range is 60 to 120 Billion cells per package.

How do you pitch a white lab for yeast?

Instructions:

  1. Add 1.5L of water to the flask.
  2. Add 200g of DME or LME.
  3. Top flask with water to 2L mark.
  4. Add ⅛ teaspoon of preferred yeast nutrient.
  5. Add antifoam (Optional)
  6. Cover opening with foil and boil for 15min.
  7. Allow the flask to cool to room temperatures and aseptically transfer yeast to liquid.

What is pure pitch yeast?

Introducing PurePitch Next Generation, an evolution of White Labs’ PurePitch® – the most superior and consistent yeast on the market – made even better with new packaging for ease of use, and verifiable quality and consistency to help you make the absolute best beer possible.

What is a yeast starter for beer?

A yeast starter is a solution that enables yeast cells to propagate (or reproduce). It resembles a mini-batch of beer but is not meant for drinking. Instead, you add it to your wort to ferment a better final beer.

Can I freeze White Labs yeast?

Re: Yeast Freezing/Storage 70/30 mixture of water/glycerine, mixed 50/50 with yeast slurry to come up with a 15% glycerine storage. Unless your freezer is manual defrost, you have to store it in the frost free freezer inside a good cooler with ice packs to protect your samples from the defrost cycle.

How do you count yeast?

To summarize, the best way to get an idea about the yeast concentration of a starter or a yeast slurry is to use a counting chamber and count five yellow squares. Add all the numbers together and multiply it by 50000 to get to the concentration in cells per mL. And don’t forget the dilution factor. Simple as that.

How many mL is white lab pure pitch?

40 mL
Although the PurePitch® packages state a cell net volume of 40 mL, actual volumes range from 40 to 50 mL. In our production, we allow for cell counts of 1.5 to 3.0 billion per milliliter which will produce 60 to 120 billion total cells if 40 mL.

How long should I let my yeast starter go?

24-48 hours is usually sufficient time for yeast starters (although some strains like lager stains can take a bit longer to propagate). It is best to pitch the yeast at or just after peak activity, when your cell count has increased substantially, but while the yeast is still active.