Bulk Powdered Sugar

More than other types of sugar, it's essential you keep powdered sugar dry. Powdered sugar also retains smells easier, so avoid placing it in the fridge, coolers, or next to other potent products. 

When in doubt, keep your sugars with other dry ingredients in a cool, dry location with little humidity. Powdered sugar's texture is more sensitive to moisture, so keeping your sugar in an airtight container will ensure your sugar's quality for years to come.

Both these types of sugar have very similar makeup since they are both primarily sucrose, but they come from very different sources. For the most part, you won't be able to notice a difference in taste between the two. In fact many store-brand sugars don't even tell you what type of sugar it is! Cane sugar is said to caramelize easier, and gives you a more uniform taste with a slight fruity note. Some say beet sugar has a slight earthiness to it because of its root vegetable origin. Ultimately, the taste difference is mostly indiscernible when used in desserts.

Most sugar in the United States is refined, and lots of major sugar companies use bone char from animal bones to refine sugar as a whitening agent. However, there are ways to refine sugar organically which do not use animal bones. Look for organic powdered sugars or powdered sugars branded as vegan. You can always use vegan alternative sugar types, such as beet sugar, date sugar or coconut sugar.