I just checked the volume with an identical bin, it is 25 litres, not 30, sorry. The grain was maris otter crushed pale malt, 1 lb crushed crystal malt, 4 oz crushed chocolate malt. Mashed in 15 litres of water (measured in). Fly sparged. It is an ordinary english bitter, but I prefer plenty of colour. Hops were goldings and fuggles. Boil time was 90 minutes, but I added water throughout the boil to keep the volume constant. I just invested in a new boiler so its a bit experimental. Previously I could only boil a maximum of 15 Litres. Thanks.