I have one that is a pimped Richies simply stout that is close to the old bottled Guinness, basically I add 250g of chocolate malt that I firstly bring to 65 70 degrees for 30 minutes then up 75 degrees for 30 minutes. The grains are in a mash bag. The volume of water is 5 litres. Mean time the malt put into the FV then first mash poured in and the mash bag sparged in the boiling panakin reheated to 75 for 30 minutes poured into FV sparge bag again with cold water into FV and add 500g of medera sugar mix up and top up to 25 litres. Starts at 1050 finish 1010 either bottle with no priming sugar or into pressure barrel for natural gas. Barrel is good but to easily drunk. Bottles when left become really nice.