![]() ![]() Such compounds that are able to form bubbles and foam are contained in each and every tea you have ever brewed but will be more prominent in some teas and depend on how you brew the tea. This includes many compounds that are included in tea naturally. This concept does not only work with soap but also works for many other molecules. On a large scale this does form bubbles and foam. These molecules will form natural structures so that the ends that don’t want to be in contact with water are touching each other. There are molecules of which one end likes water (hydrophilic) and one end that does not like water (hydrophobic). While this sounds complicated, the meaning of this is quite simple. You may have learned at some point that soap contains amphiphilic molecules. To start with, I want you to understand how foam and bubbles are formed generally. But the foam is formed by compounds different from soap. The foam that is commonly formed on the surface of freshly brewed tea is very similar to the foam and bubbles that are formed with soap water. But what information can you derive from the formation of foam? Should you care? How Bubbles And Foam Are Formed ![]() So the cause for foaming tea is natural and you should normally not be concerned when brewing and drinking foamy tea. Foaming tea is generally not a cause for concern as it is not unusual for tea. These compounds create foam in a very similar way to soap creating bubbles and foam. SHORT ANSWER – Why Is Tea Foaming? The foaming of tea is caused by amphiphilic compounds contained in the tea leaves that are extracted into the water during the brewing. Here I want to share my findings with you. With some understanding of the mechanics behind foaming and the formation of bubbles, I did some research on what is in the tea that causes this phenomenon. I have wondered many times over the years why that is and if I should care if the tea does foam. Whenever I am brewing a cup of tea, some foaming will occur. ![]()
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