There’s been some turnover at my LHBS. There was a new guy working there today. I told him my grain bill, and when I told him a half pound of Carapils, he told me that’s for extract brewers, that it doesn’t do anything in the mash. He told me I should use Carafoam instead. Now that’s my specific instance, and please, if you want to speak to that, do so. But my question is of a more general nature. Why do some people push their preferences on other brewers? After I crushed the grains and was paying for them, he said he’s trying to switch everyone to carafoam instead of carapils. I told him of a guy in a home brew forum that I follow who is trying to singlehandedly destroy the candi sugar industry.