I have a 12 litre Stock Pot and initially thought I would be restricted to around 10 litre batches. I then read that you can boil 50% of your final batch size (eg. 8 litres for a total batch size of 16 litres) and then drop that boiled water into your sterilized FV to cool, whillst you boil the other 50% (+ a bit to cover evaporation). I'd like to do as big a batch as I can but worry about how much DME i can get away with boiling in a smaller amount of water... I've also read that some people don't put all their DME into the boil... Wondering how many people do what.... If I can get away with only boiling 25% of the DME, it means I can do several lots of water and boil everything in the final boil. I'm thinking: boil 8 litres, tip into FV to cool boil another 8 litres, tip into FV to cool Boil another 8 litres as the main boil and add enough DME for 23 litres (Assume will loose around a litre from the 8 in the final boil - am I anywhere close on this estimate?) Crash cool the final wort with my immersion chiller, then tip into FV and mix with previously boiled/cooled water... Hope to end up with around 23 litres... That is another thing I need to be able to estimate fairly accurately, volume loss during boil due to evaporation... any pointers? Hope this post makes sense! Thanks, Steve.