Worthog Posted August 18, 2018 Share Posted August 18, 2018 I have my eye on this Crown Urn 40L to continue my AG biab-ing. I will purchase the Strainer/False Bottom to keep the bag off the bottom and to support an immersion cooler if I get one. Can I get some advice on whether to buy an immersion cooler of just do no-chill in a cube? If cube; how do brewers on here match a cube to wort volume, to have no air-gap, to reduce chance of infection while it cools? What if you have varying wort volumes depending on recipe? Would an air-gap be that critical when you are pouring hot wort in it? What other critical equipment should I consider while purchasing the Crown Urn? ( I currently biab in a 30l pot, bath cool wort, and sieve into fermenter, so I have all the equipment to do that, with also a bag lift pulley system for mash out). Cheers Link to comment Share on other sites More sharing options...
The Captain!! Posted August 18, 2018 Share Posted August 18, 2018 Gday worthog. i use a crown urn, I don’t have a false bottom. A standard brew for me starts at 36 litres. Each batch is approximately 5.5kg of grains to get 25 in the cube at approximately 1.050 Im not going to advocate no chilling as it has its advantages and disadvantages. Chilling does give you more room to move with hop additions however it does make your day longer. For my life this is why I no chill. I fill my cube to just below the top, then push the sides in till the container is full. There is probably a another few litres in the kettle at this point. Minimise the air gap to minimise the chance of infection by doing above but yes you should minimise the air gap. As for equipment, 3 piece ball valve you can take apart, transfer hose. That’s about it mate. Also I believe software is critical. I use BeerSmith Captain Link to comment Share on other sites More sharing options...
Otto Von Blotto Posted August 18, 2018 Share Posted August 18, 2018 Kirk has covered it pretty well. As for matching volume it's a bit trial and error but for mine I use 20 and 25 litre cubes to make 21 and 25 litre batches. I start with 11 litres more water than the intended batch size. That's based off a 75 minute boil and 4-5 litres trub loss. Chilling or not is up to you. I do no chill for convenience, as I always brew on Saturday and rarely if ever am pitching a new batch the same day. Link to comment Share on other sites More sharing options...
King Ruddager Posted August 18, 2018 Share Posted August 18, 2018 3 hours ago, The Captain1525230099 said: Each batch is approximately 5.5kg of grains to get 25 in the cube at approximately 1.050 Hmmm, I use 5.6kg to get 1.045 and 27L, starting with 27. Curious though - is your cube one of the 25L Bunnings ones? Link to comment Share on other sites More sharing options...
The Captain!! Posted August 18, 2018 Share Posted August 18, 2018 All approximately Ruddy. My last batch was at 1.050, 5.65 kg for 25l in the cube, or 27l but yes one of those Bunnings blue ones Link to comment Share on other sites More sharing options...
Otto Von Blotto Posted August 18, 2018 Share Posted August 18, 2018 How do you start with 27 litres and get the same volume out of it? Sparging? Link to comment Share on other sites More sharing options...
The Captain!! Posted August 18, 2018 Share Posted August 18, 2018 If that’s directed at me I start at 36 litres Link to comment Share on other sites More sharing options...
ben 10 Posted August 18, 2018 Share Posted August 18, 2018 I have a false bottom and it's useless. Link to comment Share on other sites More sharing options...
Hairy Posted August 18, 2018 Share Posted August 18, 2018 8 minutes ago, Ben 10 said: I have a false bottom and it's useless. I used to have a false bottom but it annoyed me. Now I just pay someone to be my stunt bottom. Link to comment Share on other sites More sharing options...
Worthog Posted August 18, 2018 Author Share Posted August 18, 2018 11 minutes ago, Ben 10 said: I have a false bottom and it's useless. Why useless, Ben 10? Link to comment Share on other sites More sharing options...
ben 10 Posted August 18, 2018 Share Posted August 18, 2018 Does not do anything but cause burn on the exposed element - for me - as there is I think excessive heat under the bottom. Link to comment Share on other sites More sharing options...
Otto Von Blotto Posted August 18, 2018 Share Posted August 18, 2018 3 hours ago, The Captain1525230099 said: If that’s directed at me I start at 36 litres Directed at Ruddy. I also start with 36 litres for the 25 litre cubes/batches. I find the false bottom very useful but I have the concealed element urn. Perhaps it works better with those. Link to comment Share on other sites More sharing options...
King Ruddager Posted August 19, 2018 Share Posted August 19, 2018 Typo - I start with 36L too, but I use more grain and get less gravity it seems Link to comment Share on other sites More sharing options...
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