[homoeccentricus]

I have found these - https://www.allergenenconsultancy.nl/product/sneltestenanalyse/sulfiet-sneltest-quantofix where you have to bring the pH to 12 before measuring. Any good?

Edited my original response to include the links..

Ha, exactly the same!

[denny]

I am hardly an expert on the LODO technique but it seems like lifting the bag, no matter how slowly, creates opportunity for wort to suffer aeration even if it is just an amount draining off/out of the grain. There is also the inevitable wort squeezed out of the grain purely due to the weight of grain above that is descending through the air and splashing around in the wort beneath it.

I suppose this is not a problem if you use the bag purely as a filter and do not lift the grain bag out of the vessel.

I'd agree on both points.  Obviously it's not the bag per se. but how you use it.  Filter only seems like no problem at all.  But it also seems like lifting it at all would cause dripping and O2 pickup.

[homoeccentricus]

I am hardly an expert on the LODO technique but it seems like lifting the bag, no matter how slowly, creates opportunity for wort to suffer aeration even if it is just an amount draining off/out of the grain. There is also the inevitable wort squeezed out of the grain purely due to the weight of grain above that is descending through the air and splashing around in the wort beneath it.

I suppose this is not a problem if you use the bag purely as a filter and do not lift the grain bag out of the vessel.

I'd agree on both points.  Obviously it's not the bag per se. but how you use it.  Filter only seems like no problem at all.  But it also seems like lifting it at all would cause dripping and O2 pickup.

This is what separates the men from the boys. I'm into it.

[wobdee]

With my Braumeister it doesn't seem like I get much hot break. I get some foamy scum just prior to boil that I skim off but it's no where near what I use to see with my old non recirc BIAB system. I also use a stainless hop spider that attaches to the center rod which helps keep probably 95% of the hop matter out. As far as cold break, most settles to the bottom when I whirlpool and chill. I'll leave about a half gallon wort/trub behind in the BM when I transfer to the fermenter.

As far as lodo goes, I keep my smb addition on the higher end 75mg/l due to the way the BM is designed and it seems to work well for me.

[Philbrew]

I have found these - https://www.allergenenconsultancy.nl/product/sneltestenanalyse/sulfiet-sneltest-quantofix where you have to bring the pH to 12 before measuring. Any good?

Edited my original response to include the links..

Ha, exactly the same!

I believe I got those same strips but the instructions in my box says pH 6-9.

[The Beerery]

I have found these - https://www.allergenenconsultancy.nl/product/sneltestenanalyse/sulfiet-sneltest-quantofix where you have to bring the pH to 12 before measuring. Any good?

Edited my original response to include the links..

Ha, exactly the same!

I believe I got those same strips but the instructions in my box says pH 6-9.

Thats correct "The only caveat is that you will need to raise pH to between 6-9 pH, which is simple enough with usually just a pinch of baking soda. "

Taken from here:
http://www.lowoxygenbrewing.com/uncategorized/sulfite-testing-strips/