Combine 1 part refined white sugar with 4 parts warm tap water in a pot. Bring the mixture to a full boil (which rids it of ...

The short answer is no but boiling helps dissolve sugar quickly and can kill bacteria or mold spores ... as it can promote fungal growth that is dangerous for hummingbirds.

Although every breath we take contains thousands of fungal spores, these spores do not trigger an immune response. Latgé and colleagues, writing in a recent issue of Nature, show that the surface ...