Clean and safe feeders. Easy for your customers. Healthy for the birds. Toxic mold in the feeder can be harmful to birds and people. Avoid it with Feeder Fresh. Re-closeable cobalt blue bag. 77% larger than the regular bottle and costs 20% less per ounce. Safe for wild birds! Feeder Fresh is made from sand, just very absorbent. The composition of Feeder Fresh is non-toxic, and contains essential elements naturally consumed by wild birds. Some of the most toxic compounds on earth are created by molds, and can cause harmful effects to birds and humans. Now there's a healthy solution stop mold from the start by using Feeder Fresh.