Coffee steeped in cold water for twelve hours comes out smooth, sweet and low in acid, and the method is simple enough that most people improvise it with a jam jar and a bag of grounds. Getting the grounds back out is the part that goes wrong.
No sieve. No paper filter. No brown cloth in the sink. Spoon the coffee into the mesh tube, fill the pitcher with cold water, and put it in the fridge before you go to bed.
The straining is the part nobody warns you about
A jar makes perfectly good cold brew and then hands you a quart of wet sludge to deal with at seven in the morning. You tip it through a sieve. The silt goes straight through, so you line the sieve with paper and stand over it while it drips. A French press is faster and leaves grit in the bottom of every glass.
Here the grounds are never loose in the water. They sit inside a mesh tube that lifts out in one piece, and what stays behind is already strained.
A filter that stands in all of the water, not on top of it
Most infusers are a short basket that hangs in the neck, so the coffee at the bottom of the jar spends the whole night nowhere near the grounds. This one is a column of fine stainless mesh that runs almost the full depth of the pitcher, three quarters as wide as the glass and closed at the bottom with a perforated cap. Water sits against it the entire way down.
Lift it out by the steel collar in the morning, knock the grounds into the trash and rinse it. That is the cleanup.
Twelve hours in a fridge, next to everything else in there
Coffee picks up a smell faster than almost anything you own, and a night beside last night's dinner is exactly how a good batch turns into a strange one. The lid is a solid stainless disc with a ribbed silicone plug underneath, and the plug pushes down into the mouth and seals it. Nothing gets in and nothing dries out.
The pitcher is a straight cylinder, so it stands upright in a door shelf instead of lying across half a middle shelf. In the morning you pour straight from the glass spout with the lid still on, over ice, and the marks printed down the side at 200, 400 and 800 ml tell you what is left.
Where the plastic ones give themselves away
The cheap version of this is a plastic jug with a plastic basket clipped into the lid. Plastic keeps the smell of the last three batches. The basket is too short to reach the coffee that matters, and a push-fit lid lets fridge air straight in.
This one is borosilicate glass, which holds no flavor of its own and lets you watch how dark the brew has gone. A silicone band around the middle gives you something dry to hold when the glass is cold and running with condensation, and a silicone cup on the foot takes the knock when you set it down on a stone countertop. It holds 800 ml, which is four tall glasses over ice, or two days of mornings.
Specifications
Capacity: 800 ml (27 fl oz)
Dimensions: 9.6 in tall x 3.1 in across (24.5 x 8 cm)
Weight: 14.8 oz (420 g)
Body: Borosilicate glass
Filter: Stainless steel mesh tube, running almost the full depth of the body, lifts out in one piece
Filter base: Perforated stainless steel cap
Lid: Stainless steel, with a ribbed silicone plug that seals into the mouth
Grip band: Silicone, around the middle of the body
Base: Silicone cup on the foot
Graduations: Printed on the glass at 200 ml, 400 ml and 800 ml
Pouring: Glass spout, poured with the lid in place
Finish: Light grey silicone with a brushed stainless lid
Also brews: Iced tea, herbal tea and fruit infusions
Package Includes
1x Cold Brew Coffee Maker, 800 ml
1x Stainless Steel Mesh Filter
1x Stainless Steel Lid