I transfer some hop material to the fermenter. Once, I had an explosion even with a blow-off because hop material plugged it. The arrangement was just a drilled stopper with the tube pushed through it. I don't remember the tube ID. But I'd recommend a large ID tube if you have hops in the fermenter.
When do you use a blow off tube?
- Thread starter TravelingLight
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Here's a pic of my imperial stout with ample fermcap + ample headspace (5.1gal in a 6.5gal carboy) + temp management (measured temp inside carboy w/Thermoworks probe at time of peak ferment = 65*F).
https://goo.gl/photos/iFaR2VEE3nZdasbP7
only with very big beers and abbey yeasts, otherwise i tend to trust that 20 liters in a 30 liter fermenter is enough headspace.
I mostly use notty though, so i tend to be familiar with it's activity.
I mostly use notty though, so i tend to be familiar with it's activity.
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