Making hummingbird nectar can be a pain. Mainly due to the fact that it spoils so fast in the heat, and it needs to be replaced every few days. Not replacing the nectar will cause the hummingbirds to stop coming to your feeder. Worse, it is not healthy for the bird to drink spoiled, fermented nectar. The old method of making nectar is simple but time-consuming and messy. You basically take 1 part sugar and add 4 parts water, bring to boil, stir without splashing, and then let it cool for at least and hour. Finally pour your pot of nectar into the feeder without spilling any. How to Use the Sugar Shaker Nectar Maker: This shaker is the fastest, easiest, and cleanest way to make hummingbird nectar. Simply fill the sugar to the sugar line, then the room temperature water to the water line, and shake for 30 seconds. Perfect nectar from start to finish in under 1 minute. Product Details: Large 1000 ml cup (approximately 1 quart). Made of solid leak tight plastic with an easy to pour spout. Dishwasher safe!