Best E61 Espresso Machines of 2026

Why the E61 group: what it does and where it came from

The E61 is a brew group design, not a brand: Ernesto Valente invented it and Faema introduced it in 1961, according to Wikipedia (checked October 16, 2026). Two features made it the template that many home machines still use.

The first is a thermosiphon: hot water circulates from the boiler through the heavy brass group and back, so the group stays at temperature without a heater of its own. The second is automatic pre-infusion, which wets the coffee at low pressure before the pump's full pressure arrives; Faema's E61 was the first espresso machine to do it, by the same account.

Brands adapt the design, so "E61" on a spec sheet means an E61-type group rather than a copy of the 1961 part. Lelit calls its group the L58E and describes it as its own E61-type group; Rocket lists a complete E61 group in its parts list. The Meraki Espresso Machine appears in E61 searches because Meraki lists E61 compatibility for portafilters, but its group is heated electrically and doesn't use a thermosiphon.

E61 heat exchanger vs E61 dual boiler

On an E61 heat exchanger, the boiler sits at steam temperature and brew water passes through a tube inside it on the way to the group; on an E61 dual boiler, brew water has its own boiler and temperature control. Both of the heat exchanger machines here use a 1.8 L boiler; what separates them is temperature control.

The Lelit Mara X adds PID to a heat exchanger, so you set the temperature instead of managing it with a flush before each shot. The Rocket Espresso Appartamento has no PID, so its brew temperature follows the boiler. The Lelit Bianca gives the brew water its own 0.8 L boiler. Brew temperatures in the table were measured by different reviewers with a Scace-type device in the group, under different conditions, so they show what each machine can do rather than a ranking. Lelit states AISI 316L stainless steel for the Lelit Bianca's boilers and the Lelit Mara X's heat exchanger; our plastic-free espresso machines page lists what each brand says about the water path.

The case against E61

Critics of the E61 point to warm-up time, weight, and lever wear; our data covers the first two. Every E61-type machine here lists a longer warm-up than the Meraki Espresso Machine's 4 minutes, and every one weighs more: 40.6–61.7 lb against 32 lb, by the brands' figures. A heavy brass group is what keeps the temperature stable, and it's also why the machine takes a while to come up to temperature.

What owners actually report is narrower. We read 684 r/espresso posts and comments about the Mara X and 392 about the Bianca from October 2024 to October 2026. Of those, 8 Mara X posts and 7 Bianca posts describe a reliability problem. The most common on the Mara X is heating control (4 posts); on the Bianca it's internal leaks (3). All of this comes from one site, which is below our threshold for a complaint index, so treat it as a signal to ask the dealer about, not a failure rate.

Warm-up: claimed vs measured

Independent measurements came in under the brand figure for both Lelits that have one, but they stop the clock at a ready light, not at the brand's own end point.

Rocket's manual asks for 15 minutes or more before the first shot so the group is fully heated, and Lelit quotes "less than" 24 minutes for both of its machines.

Upkeep: backflushing, descaling and water

The manuals disagree most on scale. Lelit says the hydraulic circuit must be descaled every year after a check by a reseller or technician, and its tank filter must be replaced every 14 tank fillings or after 4 months. Rocket's manual says not to descale the Appartamento at all and to prevent scale with softened or filtered water (p. 25).

Backflushing is part of routine care on E61-type groups. Rocket asks for a backflush with water every day and with espresso machine detergent once a week (p. 22); Lelit describes a five-cycle backflush with detergent but gives no interval. For comparison, the Meraki Espresso Machine's manual asks for a backflush once a month and has no descaling section.

Gaskets and the shower screen wear on any group. Rocket's manual says to replace the group seal when it becomes brittle and doesn't give an interval; budget for both from an authorized dealer, and see our portafilter size chart before you buy baskets.