what type of tea is served at sukiya ?

Hello everyone, so i went to japan in september of last year went to sukiya to eat gyudon and it came with a glass of cold tea wich i liked but because of language barriers could not find out what type of tea it was, anyway thanks for the help in advance

Probably ”ž’ƒ(mugi-cha; barley tea).
It's very popular cold tea in Japan.
In the summer, you can see the pet-bottles like this in every convenience stores.
http://goo.gl/BUZl5
And tea-bags in all supermarkets.
http://www.itoen.co.jp/products/list/products_detail/id=4918
http://www.ishigakifoods.co.jp/page024.html#%E9%BA%A6%E8%8C%B6

I just ate there the other day and it is definitely Mugicha.

Thanks for the help guys

Love mugicha! the iced version is so refreshing, definitely beats drinking soda in the summer.