I made a batch of vanilla ice cream using one teaspoon of the stabilizer and it had a "granular" texture. Not icy, but as though there were tiny bits of cooked custard throughout it. It didn't affect the taste but I'm wondering if I let the temperature get too high when I made the custard. What temperature do you cook yours to? I prefer taking the temperature as I find the direction to "cook it until it costs the back of a spoon" to be useless.