Iced / cold-brew function quality

Across reviews, the cold-brew output is repeatedly described as smooth, strong, and balanced, with many noting it produces concentrate meant to be diluted and stored for days to about two weeks.

Cold-brew performance is repeatedly praised, delivering exceptionally smooth results without an overnight steep and finishing in roughly 1.5 to 2 hours depending on batch size. The process uses a hot bloom before switching to cold infusion, producing a standout cold brew for a drip-style machine.

Cold extraction lets the machine pull espresso using ambient-temperature tank water (bypassing the heater), taking a couple minutes to produce a mellow, rounded shot suited to iced drinks and cocktails.

Cold drinks are the Z10 headline feature. Reviews praise clean, low-bitterness cold extraction and the sheer variety of cold recipes (4050, 14546), but several caution it is not classic immersion cold brew and can read more like premium iced coffee or a lighter nitro-style drink depending on settings (4057, 14548).

Cold options are a major differentiator: cold-brew-style and over-ice recipes get frequent praise and can be genuinely refreshing. At the same time, several reviewers caution that some “cold” drinks rely on plenty of ice and may pour lukewarm otherwise.

Cold extraction/cold brew modes are seen as a fun, usable option that can produce tasty drinks, especially over ice. Multiple reviewers note it can land closer to cool/tepid than truly cold and flavor can vary by bean, but most still call the results enjoyable and easy to replicate.

TrueBrew Over Ice is praised for producing a flavorful, refreshingly cool coffee for iced drinks by brewing cooler with pre-infusion, though it’s not considered true cold brew.

The iced-coffee mode is viewed positively in this review, described as a solid feature and an important part of the machine’s brew options.

Cold brew and iced modes are a standout theme, with several reviewers calling the cold-brew program genuinely close to traditional cold brew rather than coffee poured over ice. It is framed as both convenient and surprisingly good-tasting for a machine-driven approach.

Its over-ice mode is designed to brew stronger so iced coffee stays bold rather than tasting watered down; this video confirms the strength and that it can chill well with added ice, though the warming plate heats during brewing before shutting off at the end.

Some reviews note it can handle cold beverages (iced tea or cold brew steeping) thanks to insulation, but testing detail is limited. Expect it to work for cold steeping, though it is primarily discussed as a hot French press brewer.

Reviews that mention iced coffee generally like the results when you follow the machine's guidance; it's an iced/over-ice mode rather than true cold brew.

Cold/iced modes vary by reviewer, but this review strongly praises the automated cold brew cycle for reducing mess and letting you choose steep time (commonly 12–14 hours, up to 24). By contrast, the ‘over ice’ feature is viewed as less useful since it largely replicates what you can do manually.

Reviewers like the iced and cold-brew style modes for producing smooth, drinkable results without waiting overnight. It is framed as very good convenience rather than true long-extraction cold brew.

Cold brew and over-ice modes are a signature feature with mixed outcomes. Some reviewers call it impressive and fast for real cold extraction, while others find it mild or even bitter, suggesting results depend heavily on beans, ratios, and expectations.

An iced coffee mode is included and works for over-ice drinks, but it is not true cold brew and some note the texture or balance can feel off for certain cold recipes.

Supports iced coffee with dedicated markings and guidance for brewing over ice; the feature is appreciated for flexibility, though detailed taste testing for iced isn’t emphasized here.

Cold and iced performance is mixed. Some like the option for iced coffee or cold-style recipes, but multiple reviewers call the iced modes closer to brew-over-ice guidance than true cold brew, and several note the system is limited to black cold drinks rather than iced milk beverages.

Previous feedback said the cool coffee options brew nearly as hot as regular drinks and simply pour over ice, leaving some people unimpressed with the cold results. This reviewer similarly finds the 'cool' black coffees end up lukewarm and prefers making iced americanos manually, but notes the optional cold froth carafe can produce much more satisfying iced milk drinks for those willing to buy the accessory.

Does not offer a cold-brew option, which may matter for buyers who want iced or cold-brew style drinks from an all-in-one machine.

There is no cold-extraction or iced-espresso style feature on this model, which is attributed to its older design era before cold extraction became common in home espresso machines.

This model is not aimed at iced or cold-brew style drinks, which is a meaningful limitation compared with rivals that support iced options.

At least one review explicitly calls out the lack of a cold brew feature, positioning the KF6 as focused on hot espresso-based drinks rather than iced specialties.

There is no dedicated iced coffee or cold brew mode. Reviewers who want variety in brew styles call this out as a missing feature versus more feature-forward competitors.

Reviews note there is no dedicated iced/cold-brew program on these CM5 models. Users who want cold drinks are advised to improvise (for example, brew over ice) rather than rely on a true cold extraction mode.