Hario Ka-Ku Cold Brew

The Hario Ka-Ku is a 40 oz cold brew tea bottle designed for effortless overnight steeping. Add your loose leaf tea, fill with cold water, and refrigerate overnight. The next day, pour directly into your cup. The built-in strainer keeps leaves out so there's no extra straining or cleanup required.

Hario is one of the most trusted names in precision brewing, and the Ka-Ku reflects that. Simple, well-made, and practical for daily use. At 12.5 inches tall and 40 oz capacity it holds enough for multiple servings, making it a great fit for anyone who drinks cold-brewed tea regularly.