I've been browsing the memories for snacks, and I've come across a few recipes that call for brown sugar. Then I came across a comment that said that brown sugar isn't vegan. I searched the "is this vegan" section, and did not see anything on brown sugar.
I know that refined sugar is not considered vegan by some because of the bone char used, but there are some brands that do not use this method.
If brown sugar is not vegan, why it that the case? And what substitution can be made in a recipe that calls for it?