SMOOTHER COFFEE, EVERY TIME - Cold brewing is 70% less acidic than hot brewing. And richer in taste. Our cold brewer extracts coffee concentrate which can be stored and mixed with an endless variety of beverages to create your own perfect, personal cup of joy. Recommended grind size: Coarse LOCKS IN FRESHNESS AND FLAVOR FOR UP TO 2 WEEKS - Airtight seal. Easy-access handle. Engineered to perfectly fit within your fridge shelf. Experience refined craftsmanship you can always count on QUALITY YOU 'T REGRET - Rust-free superfine laser cut filter, medical-grade stainless steel filter & lid cap. Extra-thick, lab-tested borosilicate glass. silicon airtight seal. Dishwasher safe. New upgrade: Non-slip rubber cushion base for extra protection. Professional home brewing has never been this easy: just mix and pour ICED AND HOT TEA COMPATIBLE - Great for loose-leaf tea. Or tea bags. Brew it hot like a traditional teapot, or brew it cold in the fridge. Take your brewing & hosting skills to level!