One of our old mates here on the forum did something similar with a glass carboy creating pressure inside & paid a heavy price for that. And he was lucky.
An account of what CanadianEh!_L experienced can be found HERE. (with some pics)
I put a 1st Borough Lager down this morning and was confused with something in this recipe (it may have been that it was pre-coffee).
Using the OS Real Ale can, it calls for both a pack of W-34/70 and the can yeast.
I assume the real ale yeast is an ale one.
Why would I mix up these 2 yeasts??
Needless to say, I chickened out and (likely) over pitched some harvested W-34/70 from my last Pils batch.
Can anyone shed some light on this or if you've made this batch before?