I love it also I break down the bricks by grater... yup cheese grater it takes no time and add a bit of boiling water for the last lumps and get the humidity where I want it. After to cools I add it. I have not had any problems heating through it. I also find it is like clumping cat litter it sucks up pee and clumps and coats poo and makes it easier to pick up. Yes I typically use my hands it is just faster.