O2 is the nemesis of flavour and crema: the Zero Jar from ROK allows you to keep your coffee fresh with no muss or fuss.
Simply decant up to 250g of fresh beans of freshly ground coffee and do away with any fussy clips, folds or valves—gently pressing the plunger expels excess air, seals the jar with a satisfying hiss, and keeps the contents of your jar fresher for longer; and as you pull the handle upwards, the ingenious rolling o-ring design releases the air-tight seal and allows the plunger to lift effortlessly.
Great for coffee or other dry goods storage.
Set of 2 jars.
Crafted from real thick-walled glass with a soft silicone base and glass composite plunger/lid.
Patented lid design expels air and creates an air-tight seal when pressed downward, with a rolling o-ring that releases the seal for effortless removal when lifted.
Dimensions: ø3.9" x H4.3" | ø10cm x H11cm
Capacity: 250g | 600ml
Designed and Engineered in London
Made in China
ROK is committed to supporting your personal coffee journey—exploring fresh grind, craft roasts and heading for the so-called ‘God-shot' with a hands-on process that yields a more rewarding experience.
With sustainability of materials and methods as a guiding principle, ROK engineers products to last decades while minimising energy use: no unnecessary electric pumps or motors to wear out—instead harnessing simple mechanical advantage; no throwaway upgrade cycle, no wasteful coffee pods, and no wasteful packaging.
USE & CARE
Simply wipe coffee particles from the O-ring to maintain a good seal. Clean the jar and plunger/lid with warm soapy water and rinse. Not dishwasher or microwave safe.
Featuring the totally re-engineered Glass Composite (GC) brew chamber & piston, ROK Espresso GC requires half the force to produce the same pressure as the original model, making it easier than ever to produce café worthy espresso.
Yielding uncompromising quality, and easily retrofitted to your existing ROK/Presso Espresso Maker—since we know you still love it—the GC brew chamber & plunger is also available as an upgrade.
Freshness, grind, water, temperature, ratio, pre-infusion, pressure—a lot goes into pulling the perfect espresso, and the immersive hands-on brewing of ROK allows for total control and customisation of each variable.
Enjoy exploring at your own pace. With a little practice, you can fine-tune your recipe and technique to produce truly amazing espressos, cappuccinos and lattes—lovingly made by you to your personal taste.
Aficionados know that it's the simple things in life that are the most extraordinary—like laying a vinyl record on the turntable, gently setting the arm, checking the speed, and appreciating the depth of sound that digital simply can't replicate.
Placing all aspects of the brewing process squarely in your hands with its elegant and iconic design, ROK allows you to slow down, take it all in and savour the unbridled freedom and pleasure of making your espresso exactly the way you like it.