To determine the quality of swiftlet nests, there is a requirement - certain conditions must be met, such as the thickness of the nest. As we know, the bird's nest made of the swiftlet saliva. Every day, a pair of alternating male and female swallows make a nest by way of rubbing their saliva into the wall of the cave, cliff wall, or roof of the house. Remember .. One one day just put one piece nests aja. So do not be surprised, to build a nest only takes about 33-41 days. In fact, during the dry season, making a nest can be longer, about 80 days.

Quality is what determine the price or value of the swiftlet bird's nest. Bird's nest with perfect quality which has a shape like a bowl, thick walls, strong with a high estimate - about 5 cm, and the net was not contaminated dirt, can be sold with a high enough price. Conversely, low quality bird's nest, ie the fiber - fiber is not intact, dirty, and shape defects, can only be sold at a cheap price.

There are two types of bird's nest when viewed from the color. There was a white bird's nest made entirely from swiftlet saliva, and black bird's nest, made from a mixture of saliva and feathers - bird feathers. Swiftlet nests, which is white is more expensive. Clean white bird's nest, its price could reach 14 million rupiah / kg, while the black most only about 1 or 2 million / kg. There too, bird's nest has fiber - fiber in the nest red like blood. It's worth a lot more expensive, which is about 17 million / kg.