ianmatth

Recipes 

I'm brewing a highly hopped-up lager with Pilsner yeast. I plan to keep it in the primary fermenter for 7 days at 48-50 degrees. I wanted to do an experiment with dry hopping with different hops, so I wanted to use half gallon glass bottles for secondary fermentation. Would I be fine just using the cap so it is airtight, or would I need some way to blow it off?

beergolf

Recipes 

You will need some way to relieve pressure unless you want a big messy bang.

You could either fit the bottles with an airlock or even just cover them with some sterilized foil.

AnOldUR

Recipes 

If you've reached your final gravity and checked it over a few days for stability, it should be safe. Even so, to be safe I'd use sanitized foil and a rubber band.

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It’s best to brew dark beer at night, because that way the darkness gets into the beer. —Bohuslav Hlavsa

ianmatth

Recipes 

Thanks, I'll use sanitized foil and a rubber band.