Wrh

Knowledge is gained by experience.

Thank you foxy that's an excellent answer and I'm going to give it a go and see what happens . Thanks to everyone else who's posted too

First of I hope it is sanitised water in your airlock. I just use cling wrap over the top of the fermenter kept in place by an elastic...

"I assume the beer and air space shrink" The beer will probably expand below 4C, not sure that I can see how the space above the beer...

All i can say is it works for me

Tin foil won't stop any oxygen getting in. I assume that "no problems" means that "whilst oxygen got in, it didn't cause any problems"...

If you get a good tight fit very little if any will get in, i even do it over night when i no chill never had a problem

I take the airlock out and bung some rolled up tin foil in the hole

Is the amount of oxygen that goes in a problem it doesn't seem to be if just stopping flies etc is enough ie the tin foil hole block lol...

Whilst both the beer and airspace shrink as they cool down, I think that only has a marginal impact. what has a much bigger impact (from...

Yes, it can. If you attach a CO2 reservoir or a balloon filled with CO2 to your fermenter, it'll prevent air being sucked back in

Thanks agent gonzo I don't have any co2 so I'd better not try it lol , thanks for answering

Does cold crashing introduce oxygen into your finished beer ie I assume the beer and air space shrink when cold so does the water in...

I also use them in the kettle. The instructions on the bags say you can wash them at 30 degrees but mine go in for a 60min boil and come...

Thanks for your replies , how long do you leave the hops in , it says add them at 7 days then leave for 2 or 3 days until fermentation...