With barley tea going into glasses as the weather heats up, we find out what goes into making barley tea . With summertime here, people in Japan are increasingly reaching for one of its favorite drinks to cool off with: barley tea . Barley tea is called mugicha in Japanese, written with the kanji 麦茶, which literally translate as “barley” and “tea,” so it seems like it should be a pretty self-explanatory drink. It’s a mixture of tea and barley…right? But wait, do you just toss raw grains of barley in with tea leaves during the brewing process? Or is mugicha something else entirely? To learn more, we wanted to pay a visit to a barley tea factory, and Ogawa Sangyo was nice enough to show us around theirs. Located in Edogawa Ward, Ogawa Sangyo is one of only two mugicha makers with a production facility in Tokyo . ▼ The entrance to Ogawa Sangyo’s factory ▼ Company president Keisuke Ogawa, who served as our guide First thing first: barley tea doesn’t actually contain any tea .…