How to choose peach glue?

Look at the appearance
High-quality peach glue is generally amber or light yellow, and the color is natural and even. If the color of peach glue is too white, it is likely to be treated with chemical bleaching, this peach glue may contain harmful substances, and it is not recommended to buy. In addition, the color is too dark, such as dark brown or black, may be because of more impurities or storage time is too long, the quality will also be affected.
In shape, good peach glue is a block of different sizes, with natural grain, and some irregular bumps on the surface. If you see that the shape of peach glue is too regular, it is likely to be synthetic, and the real peach glue is naturally secreted by peach trees, and will not have a very regular shape.
Picking impurities
Peach glue with less impurities is a better choice. When selecting, you can carefully observe whether there are impurities such as bark and sediment inside and on the surface of peach glue. Because these impurities will affect the taste and food safety of peach glue, and it is difficult to completely remove them during the cleaning process, especially those impurities included in the peach glue.
smell
Normal peach gum has a light smell of trees. If you smell a pungent chemical smell, it is likely to be chemically treated peach glue, which is not suitable for consumption. In addition, if there is a moldy smell, it means that peach glue may have been damaged by moisture and can not be purchased.
Look at the foaming rate
The foaming rate of high quality peach glue is relatively high. Generally speaking, good quality peach glue will expand 10-15 times after 12-24 hours of soaking. The high foaming rate indicates that peach glue has high purity and less impurities. You can judge the quality of peach glue by buying a small amount and testing its foaming rate. However, it should be noted that factors such as peach glue produced by different varieties of peach trees and the degree of dryness of peach glue will also affect the foaming rate.