A buddy of mine is brewmaster at a local brewpub and gave me some yeast in a sanitized mason jar last week Friday from his stout batch so I can brew as stout.
I was unable to brew the stout over the weekend as I was missing so key ingredients and he is out of town, the jar is about 2/3 full of yeast. Is it still good to brew with? I have seen that most times people recommend filling with sanitized water to the top but it's just 1/3 full of air, hasn't been opened but the lid is unscrewed a bit so it can purge air if it needs to, and it's been in the fridge all week.
I was unable to brew the stout over the weekend as I was missing so key ingredients and he is out of town, the jar is about 2/3 full of yeast. Is it still good to brew with? I have seen that most times people recommend filling with sanitized water to the top but it's just 1/3 full of air, hasn't been opened but the lid is unscrewed a bit so it can purge air if it needs to, and it's been in the fridge all week.