I just made some fresh hummingbird food and lately it seems to look cloudy after I put it in the feeders. I can't figure out why and have been making my own for years. I clean out my feeders and even bought some more feeders since I have about 25 or more hummingbirds flying around my feeders. I use 1 cup of sugar to 4 cups of water and also boil it until the sugar has completely dissolved. I don't use any red food color in my food either. Don't know if someone else have has this issue before but would like to try and find out. Can someone please help me figure out why. My first 4 mixtures were not this way. But it just started happening. I do put it in the refrigerator in a red hummingbird jug. And I also fix some up in a clear milk jug that was washed out thoroughly . I don't want to do anything to mess up my hummingbirds.