I was a latecomer to fridge brewing. I’ve been here for nine years but only started fridge brewing a couple of years ago. Now I can’t stop, and shan’t.
Brewing your own tea in the fridge is really cheap. The mugicha (barley tea) package (right) was only 300 yen and it will last the summer. The Oolong tea (left) was a little under 400 yen and will also last a long time. I got a new brewing container this year as well. My hand doesn’t fit in my old one and it was really hard to get the inside of some of the curves clean – almost impossible. My hand fits in the new one so all is good this year. If you are looking to buy a brewing jug I would recommend buying one made of tempered glass so that in cooler weather you can brew hot tea in it if you happen to have a large number of guests, or need to make ice tea that requires a hot brew first.
I’ve found that Japanese teas labelled 水出し(suidashi for cold water) work really well but regular Japanese teas don’t. Black tea, on the other hand, does pretty well in the fridge. Teas will take 2 hours to all night depending on the tea and the desired strength. Most teas made for cold water will take 2 hours but that depends on your container size. I usually black tea overnight using only one tea bag in a liter because I like weak tea.