Cannabutter Qestion

I was just wondering whats the difference between using margarine and using unsalted butter when making cannabutter? Does it affect taste or potency?

yes and yes. margerine is not the way to go since it is not even a type of butter is a vegitable spread that is emulsified. if you melt it down when you cool it off it will be broken and not be useful. use the butter it may not be as healthy but..you will get a quality product with a rich flavor.