Looks like there is still one left if anyone is interested: http://www.ebay.com/itm/LAB-LINE-LABLINE-MODEL-3520-ORBIT-SHAKER-/111708697522?pt=LH_DefaultDomain_0&hash=item1a025b73b2
This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.
Guess what happens if we serially repitch a starter versus serially repitching yeast cropped from a normal gravity beer? If you guessed that the yeast culture loses vitality more rapidly, then you are correct.
Actually, yeast cells consume O2 whenever it is available, which is why the "Don't rack to secondary because it will oxidize your beer" mantra is yet another home brewer created myth.
I think a wort chiller might be added soon, maybe a glass carboy. What would you recommend?
Thought I would show pictures of my twins.
A stir plate provides inadequate aeration if operated at a speed low enough to prevent shear stress (perform a Google search using the terms "magnetic stirrer" and "shear stress"), and if operated at a speed high enough to add significant O2 to a culture results in shear stress being placed on the cells, which is why cultures that are stirred fast enough to create a vortex smell foul.
Physics prevents a culture in an Erlenmeyer flask from receiving O2 after it starts outgassing because gas pressure is highest at the mouth of the flask.
Here are my thoughts:
Very cool gadget, if you're able can you take a few seconds of video with a flask? I would love to see it in action!
Does any know of any other ways I could acquire the funds to purchase this business?