The X-Press58 is the closest a battery-powered portable machine has come to a home espresso machine — not in size, but in shot quality. A genuine 58mm professional portafilter, built-in heating to 96°C, fixed pre-infusion, and one-touch extraction produce shots reviewers describe as indistinguishable from a bench machine. The trade-off is weight and price; the reward is café-quality espresso anywhere a USB port has ever been.
2 Extraction Modes
🔥 Direct Heated Mode
Internal Heater · ~3 Min Heat-Up · ~96°C
The machine heats cold water internally to ~96°C reservoir temperature (~91–92°C at the puck) — no external kettle or stove needed. Heat-up takes ~2 min 47 s from cold on a full charge. Delivers 4–7 full heated extractions per charge. Best for travel, hotel rooms, and office use where no other heat source is available.
❄️ Cold / Pre-Heated Mode
Pump Only · 500+ Extractions Per Charge
Add your own pre-heated hot water (or cold water for cold-brew concentrate) and use the machine as a pressure pump only — bypassing the internal heater entirely. Battery life expands dramatically: up to 500+ hot extractions per charge when water is pre-heated externally. Ideal for camp use alongside a stove or vacuum flask.
How to Brew
One-Touch Operation · Auto Pre-Infusion (~30ml, 5s Pause) · Then Full Extraction
1
Fill the water reservoir — add water for direct heated mode, or pre-heated water for pump-only mode
2
Dose and tamp — use the 58mm portafilter with the included funnel and calibrated tamper; accepts standard IMS/VST aftermarket baskets
3
Set temperature — select brew temp in 4°C steps via the control panel; default is ~96°C reservoir, producing ~91–92°C at the puck
4
Wait for heat-up — in direct heated mode, the machine signals ready after ~2 min 47 s from cold start on a full charge
5
Press once — one-touch extraction begins with automatic pre-infusion: ~30ml wetting, 5-second pause, then full pump pressure to extraction
6
Eject puck cleanly — use the included air blower to pop the used puck out dry; no messy basket knock required
⚠️ Battery Life in Heated Mode: The 13,500mAh battery delivers ~4–7 full heated extractions per charge in direct mode — enough for one person's daily use per charge cycle, not a group setup. For extended outdoor trips, carry a power bank or pre-heat water externally to unlock 500+ pump-only extractions from the same charge. Charge via USB before departure.
Key Features
☕
True 58mm Portafilter
Full professional 58mm basket — compatible with standard IMS, VST, and third-party 58mm baskets and tampers. The same diameter as most home and café espresso machines.
🌡️
Built-In Heater · ~96°C
Internal heating element reaches ~96°C reservoir temperature — 3–4°C higher than comparable portable machines, improving extraction quality for medium and light roasts.
🔋
13,500mAh USB Battery
Massive built-in battery — up to 500+ pump-only extractions or 4–7 fully heated shots per charge. Recharges via USB-C; no proprietary cables or power adapters needed.
🎛️
Adjustable Temperature
Selectable brew temperature in 4°C steps — dial in cooler temps for dark roasts or nudge higher for lighter, more acidic beans without any external tool.
💧
Auto Pre-Infusion
Fixed automatic pre-infusion cycle: ~30ml wetting followed by a 5-second pause before full pressure — reduces channeling and evens extraction across the puck without manual timing.
🧹
Air Blower Puck Ejection
Included air blower pops the spent puck out cleanly and dry — no wet knock, no mess. Particularly useful for travel and outdoor use where a knock box isn't an option.
☕ Reviewer Verdict — Coffee Chronicler
"If you want the most pro-like espresso from a battery unit, this is the one that finally delivers. Thermal power, stable brew temps, full-size baskets, and a no-drama workflow add up to reliably excellent shots." — The steep price and fixed pre-infusion are the only noted trade-offs against best-in-class heat stability and an abundant accessory package.
In the Box
📦 What's Included
X-Press58 Main Unit58mm PortafilterEspresso BasketCalibrated TamperDosing FunnelAir BlowerCollapsible StandUSB-C Charging CableStorage / Carry Bag
Specifications
Brand
MHW-3BOMBER
Model
X-Press58
Power Source
Built-in 13,500mAh Battery — USB-C Rechargeable
Portafilter Size
58mm — Professional Standard
Basket Compatibility
Standard 58mm — IMS, VST, Third-Party
Extraction Pressure
9 Bar Standard · Up to 20 Bar Peak
Brew Temperature
Adjustable in 4°C Steps · ~96°C Reservoir · ~91–92°C at Puck
Heat-Up Time
~2 min 47 s (Cold Start, Full Charge)
Pre-Infusion
Fixed Auto — ~30ml Wetting · 5s Pause · Full Extraction
Battery Life (Heated)
4–7 Full Heated Extractions Per Charge
Battery Life (Pump Only)
~500+ Extractions Per Charge (Pre-Heated Water)
Cold Brew Mode
Yes — Cold Water Pump Extraction
Charging
USB-C
Operation
One-Touch
Use Case
Travel, Camping, Office, Van Life, Food Truck
Key Features
58mm Pro Portafilter
Full professional 58mm basket — same diameter as home and café machines; accepts IMS, VST, and all standard 58mm aftermarket baskets, tampers and accessories without adapters
~96°C Brew Temperature
Internal heater reaches ~96°C reservoir (91–92°C at puck) — 3–4°C higher than competing portable machines; measurably improves extraction quality on medium and light roasts
Dual-Mode Battery
13,500mAh enables both modes: ~4–7 fully heated shots per charge for travel convenience, or 500+ pump-only extractions when pre-heated water is supplied — one machine for every scenario
Auto Pre-Infusion
Machine-timed 30ml pre-wet and 5-second pause before full extraction — no manual timing needed; reduces channeling risk across both pressurised and standard basket configurations
Adjustable Temperature
4°C-step temperature selection lets you match brew temperature to roast profile — cooler for darker roasts, higher for light/specialty beans; uncommon in portable electric machines
Air Blower Puck Ejection
Included pneumatic puck ejector removes the spent coffee puck cleanly without a knock box — dry, mess-free, and practical for any environment where a traditional knock box is absent
