Sorry, can't offer much advice as I seem to like the lumps in the porridge. This is what I do, put porridge into a large microwavable bowl and cover with approximately 150mls of boiling water, and out in the microwave for 2 minutes on high power. Having said that on one occasion I was at the central office for my employer and in the cafeteria, so I just stirred in hot water into a mug of porridge powder and it turned out nicely. I think there could be an issue that I will probably eat anything (a real greedy guts!) irrespective of the taste or presentation.