Precision Coffee Tools — Dual-Thermoblock Espresso Machine with Programmable Pre-Infusion
Precision Bella V2 Espresso Machine
The Precision Bella V2 gives you real control over brew temperature and pre-infusion without the warm-up time, weight or power draw of a boiler machine.
The Precision Bella V2 runs two separate thermoblocks — one for brewing, one for steam — so it's ready to pull a shot in about five minutes from cold. Brew temperature is set on the touchscreen anywhere from 80 to 102°C, pre-infusion is programmable in two stages, and a front-mounted pressure gauge shows you what's happening during the shot. It takes standard 58mm baskets, so tampers, distributors and precision baskets you already own will fit. It comes in white, silver or black and weighs 13 kg.
Despite the name, the V2 is a different machine from the original Bella, which is an E61 heat-exchanger with a copper boiler. The V2 swaps that architecture for thermoblocks and digital control: you trade the heavy, slow-to-heat boiler for a machine that wakes quickly, draws a maximum of 2,350W from an ordinary household outlet and lets you change temperature by pressing a button rather than waiting for a boiler to settle.
Dual ThermoblockSeparate brew & steam
80–102°CAdjustable brew temp
2-StageProgrammable pre-infusion
58mmStandard portafilter size
🔥 Dual Thermoblock 🌡️ 80–102°C Control 💧 Programmable Pre-Infusion ☕ 58mm Portafilter ⏱️ ~5 Min Warm-Up 📟 Touchscreen Display 🎨 White, Silver or Black 🛡️ 1-Year Manufacturer Warranty
Best for: ☕ First serious home setup · 🥛 Daily milk drinkers · 🌡️ Temperature tinkerers · ⚡ 220–240V households · ⏱️ Quick weekday mornings
Key Features of the Bella V2
🔥 Separate Brew & Steam Thermoblocks
Each job has its own heater, so you're not waiting for a single boiler to climb from brew temperature to steam temperature before you can texture milk.
🌡️ Brew Temperature You Can Set
Dial in anywhere from 80 to 102°C in the touchscreen — run it cooler for a dark roast that turns bitter, hotter for a light roast that tastes thin and sour.
💧 Two-Stage Pre-Infusion
Program how long water wets the puck (0–10 s) and how long it rests (0–10 s) before full extraction, which evens out flow and makes your shots more forgiving.
⏱️ Programmable Shot Times
Single and double buttons each store their own time between 15 and 120 seconds, and a separate manual button lets you start and stop the shot yourself.
📊 Coffee Pressure Gauge
A front-mounted gauge shows brew pressure in real time, so you can see whether your grind is choking the machine or running too fast before you taste the result.
🧼 Built-In Cleaning Programs
Guided descaling for both thermoblocks, a backflush cycle with the included cleaning disc, and a reminder after 500 uses so maintenance doesn't slip.
Programmable Pre-Infusion, Explained
Most channelling — water punching a fast path through the puck and leaving the rest under-extracted — happens in the first few seconds of a shot, when dry coffee meets full pump pressure. Pre-infusion softens that moment by wetting the coffee first and letting it swell before extraction begins. On the Bella V2 you control both halves of that process from the touchscreen.
-
Stage 1 — wetting (P-1): water flows onto the coffee bed for 0 to 10 seconds. The default is 2 seconds.
-
Stage 2 — rest (P-2): the pump pauses for 0 to 10 seconds while the puck saturates and settles. The default is 2 seconds.
-
Extraction: the machine then runs the rest of your programmed shot time. Pre-infusion counts inside that time, so a longer pre-infusion needs a longer shot setting.
The practical result is a shot that tolerates small inconsistencies in your distribution and tamp, and more room to push finer grinds on light roasts without the shot running away. If you prefer to control everything yourself, the manual button skips pre-infusion entirely.
Complete Technical Specifications
| Product Parameters (Manufacturer) |
| Product name |
Espresso Coffee Machine |
| Product model |
BELLA V2 |
| Rated voltage / frequency |
220–240V ~ 50Hz |
| Rated power |
1,950–2,350W |
| Product Information |
| Brand |
Precision Coffee Tools |
| Type |
Semi-automatic espresso machine, household use |
| Finishes |
White, Silver or Black |
| Designed by |
Precision Coffee Tools |
| Country of manufacture |
China |
| Intended use |
Home and similar settings — staff kitchens, farmhouses, B&Bs and guest rooms |
| Warranty |
1 year manufacturer warranty (non-accidental damage) |
| Heating & Group Head |
| Heating system |
Dual thermoblock — separate brew and steam thermoblocks |
| Warm-up time |
Brew thermoblock approx. 1 min; group head approx. 5 min (including thermoblock) |
| Portafilter |
58mm, double spout |
| Pressure gauge |
Coffee (brew) pressure gauge on front panel |
| Pre-Infusion & Shot Programming |
| Pre-infusion wetting time |
0–10 s, default 2 s |
| Pre-infusion rest time |
0–10 s, default 2 s |
| Single shot time |
Default 25 s, programmable 15–120 s (includes pre-infusion) |
| Double shot time |
Default 40 s, programmable 15–120 s (includes pre-infusion) |
| Manual shot button |
Yes — start/stop by hand, no pre-infusion |
| Temperature |
| Brew temperature |
Adjustable 80–102°C, default 93°C |
| Recommended brew range |
90–96°C (manufacturer guidance) |
| Steam |
| Steam control |
Lever-operated steam wand |
| Steam session limit |
Auto-stop after 5 minutes of continuous steaming |
| Recommended milk jug |
Mouth diameter of 70mm or more |
| Control & Water |
| Controls |
Touchscreen display; single, double, manual and descale buttons |
| ECO mode |
Sleeps after approx. 28 minutes idle; any button wakes it |
| Buzzer & display check |
1-second beep and "888" test on power-up |
| Maintenance programs |
Steam descaling, backflush with cleaning disc, reminder after 500 uses |
| Water tank |
Removable, top-fill; approx. 1.7L to the MAX mark |
| Water supply |
Tank-fed (not plumbable) |
| Water type |
Filtered or softened drinking water; purified or distilled water not permitted |
| Physical & Power |
| Power point |
Earthed (grounded) household outlet rated for 2,350W at 220–240V |
| Operating environment |
1–40°C ambient; indoor use only; not inside a cabinet |
| Net weight |
13 kg |
| Gross weight (packed) |
17 kg |
| Carton size |
40cm D × 22cm W × 37cm H |
| Frost protection |
Drain the brew thermoblock daily if the room can fall below 0°C |
| Documents & Downloads |
| Instruction manual |
Bella V2 Instruction Manual & Warranty Card (PDF) |
| Box specifications |
Bella V2 Outer Box Specifications (PDF) |
What's in the Box
- Precision Bella V2 espresso machine
- 58mm double-spout portafilter
- 58mm single-shot filter basket
- Tamper
- Cleaning disc (for backflushing)
- Group head cleaning brush
- Instruction manual and warranty card (download the PDF)
Not included: a grinder, a milk jug or cleaning chemicals — you'll need all three to get started.
Bella V2 vs the Original Bella
The two machines share a name but not an architecture. If you've read about the original Bella, here's what's actually different.
| Feature |
Precision Bella V2 |
Precision Bella (original) |
| Heating |
Dual thermoblock |
1.8L copper heat-exchanger boiler |
| Group head |
58mm heated group, ~5 min warm-up |
E61 |
| Brew temperature |
Set directly, 80–102°C |
Indirect, via the heat-exchanger boiler |
| Pre-infusion |
Programmable, two stages |
Passive E61 pre-infusion, not adjustable |
| Water tank |
Approx. 1.7L |
2.3L |
Our recommendation: Choose the Bella V2 if you want fast warm-up, direct temperature control and adjustable pre-infusion on an ordinary household outlet. Don't bother if you specifically want the feel and thermal mass of a traditional E61 boiler machine, and consider a traditional E61 heat-exchanger or dual-boiler machine instead.
Grinders to Pair with the Bella V2
A machine with adjustable temperature and pre-infusion only pays off if the grinder can make small, repeatable changes. These three all grind fine enough for espresso and adjust in small enough steps to take advantage of the V2's controls.
| Grinder |
Burr |
Why it pairs well |
| Turin DF64 Gen 2.5 |
64mm flat |
Single-dose with very low retention, so each change you make on the V2 is tested on fresh grounds, not the last shot's leftovers |
| Eureka Mignon Specialita |
55mm flat |
Stepless and quiet, with hopper convenience for a household making the same drink every morning |
| Niche Zero |
63mm conical |
Near-zero retention and a fuller-bodied cup that suits milk drinks and medium-to-dark roasts |
Who This Machine Is For
✓ Ideal if you:
- Want to adjust brew temperature for different roasts without a boiler machine's price and weight
- Want to experiment with pre-infusion times from the touchscreen
- Make coffee on weekday mornings and can't wait 20+ minutes for a machine to heat
- Live in a 220–240V, 50Hz country and want a machine that runs from an ordinary kitchen outlet
- Want 58mm accessories so upgrades like precision baskets and distributors fit
✗ Consider alternatives if you:
- Specifically want an E61 group and a traditional boiler — look at a heat-exchanger or dual-boiler machine
- Live in a 110–120V or 60Hz country — the Bella V2 is rated for 220–240V, 50Hz only
- Need a plumbed-in machine — the V2 is tank-fed, with about 1.7L to refill
- Want shots dosed by volume or weight — the V2's programming is time-based
- Keep the machine somewhere that drops below 0°C, such as an unheated holiday house, and can't drain it after each use
Bella V2 Owner's Guide
Everything from the Bella V2 manual that matters day to day — setup, programming, milk, cleaning, descaling and what the lights and error codes mean — rewritten so you can find it quickly. You can also download the full instruction manual (PDF).
Machine Layout & Controls
| Part |
What it does |
| Cup rail (top) |
Decorative only — never use it to lift or move the machine |
| Coffee pressure gauge |
Shows brew pressure during the shot |
| Group head |
Where the portafilter locks in; gets very hot in use |
| Portafilter |
58mm, double spout |
| Drip tray |
Removable; empty it before it overflows |
| Steam handle |
Lever on top — push down to steam, up to close |
| Touchscreen display |
Shows temperature, timing, CLn, ECO and error codes; +/– buttons |
| Water tank |
Removable, lidded, fill to the MAX mark |
| Steam wand |
Fitted with an anti-scald soft rubber grip |
| Power switch |
Lever-style — push down to turn on |
| Single-cup button |
Programmed single shot, with pre-infusion |
| Double-cup button |
Programmed double shot, with pre-infusion |
| Manual button |
Start/stop by hand, no pre-infusion; also runs backflush and drain cycles |
| Descaling button |
Enters descaling and backflush mode |
Before First Use
- Unpack the machine, check every accessory is there, and peel off the protective film.
- Wash the water tank and portafilter, and clean the drip tray and cup holder before refitting them.
- Plug into an earthed socket only.
- Flush water through the brew and steam circuits before your first coffee or first steam.
Starting Up
- Fill the tank to the MAX mark, seat it back in place and close the lid.
- Plug in — the buzzer sounds for 1 second, and the display shows "888" with every light on for 2 seconds.
- Push the power lever down. The pump runs for 2 seconds, the display shows live brew temperature, and the button lights flash in sequence while it heats.
- The brew thermoblock is ready in about 1 minute and the group head in about 5 minutes. The lights stay on solid once it's ready.
Programming Your Settings
| Setting |
How to change it (from standby) |
Default / range |
| Single or double shot time |
Hold the single or double button for about 3 s until the pump starts, then press it again when you have the amount you want. The time is saved automatically. |
Single 25 s, double 40 s; 15–120 s including pre-infusion. Anything under 15 s is saved as 15 s. |
| Pre-infusion wetting (P-1) |
Hold "–" for 3 s until P-1 shows, wait 3 s, then adjust with +/– (hold for fast adjust). It saves after 3 s with no input. |
2 s; 0–10 s. "P02" means 2 seconds. |
| Pre-infusion rest (P-2) |
Hold "–" for 3 s to show P-1, press +/– to switch to P-2, wait 3 s, then adjust. It saves after 3 s with no input. |
2 s; 0–10 s |
| Brew temperature |
Hold "+" for about 3 s until the temperature flashes, then adjust with +/–. It saves after 3 s with no input. |
93°C; 80–102°C |
| Restore factory defaults |
Hold the single and double buttons together for about 3 s. The buzzer sounds, "888" flashes and the button lights flash five times. |
Resets all of the above |
| ECO sleep |
Automatic after about 28 minutes idle — "ECO" shows and brewing and steaming are paused. Press any button to wake it. |
Always on |
Brewing Guide
Starting points from the manufacturer. Bean, roast and freshness all shift the ideal numbers, so adjust by taste.
| Parameter |
Single shot |
Double shot |
| Dose |
9–12 g |
17–20 g |
| Brew temperature |
90–96°C |
90–96°C |
| Group head pressure |
9–12 bar |
9–12 bar |
| Extraction time |
20–30 s |
20–30 s |
| Brew ratio (dose : yield) |
1 : 2 to 1 : 2.5 |
1 : 2 to 1 : 2.5 |
- Use beans roasted within the last three months, and keep opened bags sealed, dry and out of sunlight.
- Grind just before brewing — pre-ground coffee oxidises quickly and picks up odours.
- Too fine a grind over-extracts (bitter, slow); too coarse under-extracts (sour, fast). Adjust towards the middle.
- Pull a shot: fill and tamp the basket evenly, lock the portafilter in, put your cup underneath and press single, double or manual. Programmed shots stop by themselves.
Steaming & Milk Frothing
- Purge first: push the steam handle down for about 5 seconds to clear condensed water, then lift it to close.
- Fill a jug with cold milk. Whole milk at around 8°C froths best; skim milk won't foam well.
- Set the wand off-centre towards the 3 o'clock position, with the tip just below the surface. Push the handle down and hold the jug steady.
- A gentle hiss means you're adding air correctly. A sharp screech means the tip is too deep and you're only heating the milk; too shallow and it will splatter.
- Lift the handle to stop at your target temperature. After use, purge for 2–3 seconds and wipe the wand with a damp cloth straight away so milk doesn't bake on.
- Use a jug with a mouth of at least 70mm to avoid splashing, and don't touch the group head or steam tip — both get very hot.
- Steam stops automatically after 5 minutes of continuous use and the display shows E-6. Lift the handle to close it and the machine returns to normal.
Daily Cleaning
- Turn off, unplug and let the machine cool completely first.
- Wipe the outside with a damp cloth or a mild neutral detergent. Never use alcohol or solvents, and never immerse the machine.
- Knock out the puck, then clean the basket with cleaning solution and rinse well.
- Check the steam tip isn't blocked, and brush the group head and its seal with a group brush.
- Wash the accessories in water and let them air-dry.
Descaling & Backflushing
The manual recommends descaling every one to three months, depending on how often you use the machine. Fill the tank to MAX (about 1.7L) with water and descaler at a 4:1 ratio, following the descaler's own instructions. If you don't have descaler, citric acid at 100:3 (water to citric acid) can be used instead.
| Program |
How to run it |
Notes |
| Steam pipeline descaling |
Press the descale button so CLn shows, then push the steam handle down. Hot water and steam run from the wand for 60 seconds, then the machine exits automatically. Close the handle to stop early. |
About 600ml comes out, so use a container that holds more than that. |
| Coffee pipeline backflush |
Put cleaning agent in the cleaning disc, fit the disc in the portafilter and lock it in. Press descale (CLn shows), then press manual. It cycles 8 s on and 4 s off for 60 seconds. Afterwards, remove the disc and press manual to run 120 s of clean water. |
Press manual to stop early. |
| Both at once |
Run the two programs together. |
The manual and descale lights and CLn all flash every second. |
| Rinse |
Wash the tank, fill it with clean water to MAX, and repeat the descaling steps until both thermoblocks run clear. |
Repeat at least 3 times. |
| Descaling reminder |
After 500 combined coffee and steam uses, CLn appears 3 s after brewing (brew thermoblock) or steaming (steam thermoblock). A full descale of that circuit resets the count. Press descale again to exit. |
You can still brew and steam normally while the reminder shows. |
Turning Off & Preventing Freezing
- Turn off at the power switch, then at the wall or unplug the cord.
- Before transport or long storage — and every day if the room can drop below 0°C — drain the brew thermoblock. To do this, remove the tank, press manual in standby until water stops flowing from the group, press manual again, switch off, then refit the tank.
- Frozen water can crack the brew thermoblock, so don't leave the machine full in freezing conditions.
Water Requirements
Use filtered water, or softened water from a treatment device, that meets drinking-water standards — pH and chloride levels matter most. Purified or distilled water must not be used. If you use a water filter, replace it on its own schedule.
Indicator Lights & Settings
| Machine status |
Display |
Button lights (single / double / manual / descale) |
| Power on |
888, +, – |
All light up for 2 s |
| Startup |
Coffee temperature, +, – |
All on |
| Coffee & steam preheating |
Coffee temperature, +, – |
All flashing |
| Preheating finished |
Coffee temperature, +, – |
All on |
| Making single shot |
Timing, +, – |
Single on; others off |
| Making double shot |
Timing, +, – |
Double on; others off |
| Making manual shot |
Timing, +, – |
Manual on; others off |
| Steam pipeline descaling |
CLn flashing |
Manual on, descale flashing; others off |
| Coffee pipeline backflush |
CLn flashing |
Manual flashing, descale on; others off |
| Sleep mode |
ECO |
All off |
| Brew thermoblock sensor fault |
E-1 flashing |
All off |
| Steam thermoblock sensor fault |
E-4 flashing |
All off |
| Steam handle not closed |
E-6 flashing |
All off |
Troubleshooting
| Problem |
Likely cause |
Solution |
| No water |
Water tank is empty |
Refill the tank |
| No water |
Supply voltage or frequency doesn't match the machine |
Use a 220–240V, 50Hz supply |
| No water |
Machine fault |
Contact a service technician |
| Leaking |
Drip tray is full |
Empty and clean the drip tray |
| Leaking |
Machine fault |
Contact a service technician |
| Coffee spills over the portafilter |
Too much coffee, so the portafilter can't lock in tightly |
Reduce the dose |
| Coffee spills over the portafilter |
Grounds left on the basket rim |
Wipe the rim and clean coffee off the group gasket |
| Coffee spills over the portafilter |
Portafilter locked in unevenly |
Remove and refit it, making sure its lugs are fully engaged so it sits level |
| Coffee spills over the portafilter |
Group gasket damaged |
Replace the group gasket |
| Coffee spills over the portafilter |
Still happening after the above |
Contact a service technician |
| No coffee |
Grind too fine |
Grind coarser |
| No coffee |
Dose too high |
Reduce the dose |
| No coffee |
Tamping too hard |
Tamp more lightly |
| No coffee |
Screen clogged |
Remove the screen with a screwdriver and clean it with a brush or needle |
| No coffee |
Tank low or not seated properly |
Refill and reseat the tank |
| No steam |
Steam tip blocked |
Clear the tip with a pin |
| No steam |
Water tank is empty |
Refill the tank |
| No steam |
Machine fault |
Contact a service technician |
| Machine won't work |
Power cord not plugged in |
Plug it in |
| Machine won't work |
Machine fault |
Contact a service technician |
| Milk won't froth |
Jug too wide or unsuitable |
Use a tall, narrow cup or a proper frothing jug |
| Milk won't froth |
Using skim milk |
Use whole milk |
| Display shows ECO |
Idle for about 28 minutes |
Normal energy-saving mode — press any button to wake it |
| Display shows E-1 |
Brew temperature sensor disconnected or short-circuited |
Contact a service technician |
| Display shows E-1 |
Room temperature below 0°C |
Check the room temperature; move the machine somewhere warmer |
| Display shows E-4 |
Steam thermoblock sensor open or short-circuited |
Contact a service technician |
| Display shows E-4 |
Room temperature below 0°C |
Check the room temperature; move the machine somewhere warmer |
| Display shows E-6 |
Steam handle not closed |
Lift the steam handle to close it |
| Display shows E-6 |
Micro switch open circuit |
Contact a service technician |
If you can't find the cause, don't open the machine yourself — contact your retailer or an authorised service agent.
Downloads
Safety Notes
- Children and anyone unfamiliar with the machine should only use it under supervision, and children must not clean it unsupervised.
- Use it only on a flat, stable benchtop away from hot surfaces and open flames. Keep the cord off hot parts and away from the bench edge, and don't run it inside a cabinet.
- Use an earthed socket, fully inserted. Don't plug it into a light-fitting adaptor or overload an extension lead, and pull the plug rather than the cord.
- The group head, steam wand and nozzle get very hot, so hold only the portafilter handle and the anti-scald grip.
- Unplug the machine and let it cool before cleaning or fitting parts, and never immerse it or the plug in water.
- If the power cord is damaged, have it replaced by a qualified technician. Use genuine parts only.
- Stop and unplug the machine immediately if you notice unusual noise, smells or overheating, or if it has been dropped. Don't use it outdoors or near flammable materials.
Precision Bella V2 — Frequently Asked Questions
What power supply does the Precision Bella V2 need?
The Bella V2 is rated for 220–240V, 50Hz, and draws 1,950–2,350W. Plug it into an earthed (grounded) outlet that can handle that load. It's best on its own outlet rather than a power board shared with a kettle or toaster. It isn't suitable for 110–120V or 60Hz supplies.
How long does the Bella V2 take to heat up?
About five minutes from cold. The brew thermoblock is hot in roughly a minute, and the group head takes around five minutes in total; the button lights stop flashing when it's ready.
What's the difference between the Bella V2 and the original Precision Bella?
They're different machines. The original Bella is an E61 heat-exchanger with a 1.8L copper boiler; the V2 uses separate brew and steam thermoblocks with digital temperature control from 80 to 102°C and programmable two-stage pre-infusion. The V2 heats up much faster, while the original offers the thermal mass and feel of a traditional E61.
Can I adjust brew temperature and pre-infusion on the Bella V2?
Yes, both are set on the touchscreen. Brew temperature adjusts from 80 to 102°C (default 93°C), and pre-infusion has a wetting stage and a rest stage, each adjustable from 0 to 10 seconds. Pre-infusion works on the single and double buttons, not the manual button.
What water should I use, and how often should I descale?
Use filtered or softened drinking water — not distilled or purified water, which the manufacturer prohibits. Descale every one to three months depending on how often you use the machine and how hard your water is; the V2 also shows a CLn reminder after 500 brew and steam cycles.
Why has my Bella V2 stopped steaming and shown E-6?
E-6 appears when steam has run continuously for five minutes, which is the machine's safety limit, or when the steam lever isn't fully closed. Push the steam lever back up and it returns to normal; if E-6 persists with the lever closed, contact your retailer or an authorised service agent.
What colours does the Bella V2 come in, and how heavy is it?
The Bella V2 comes in white, silver or black. The machine weighs 13 kg, or 17 kg packed, and ships in a 40cm deep, 22cm wide, 37cm high carton. The machine itself is slightly smaller than the carton, so check your bench clearance and make sure the top-fill tank lid can open beneath any overhead cupboards.
Which grinder should I pair with the Bella V2?
Any grinder that adjusts finely enough for espresso. The Turin DF64 Gen 2.5, Eureka Mignon Specialita and Niche Zero all suit it well. Choose based on your budget, whether you single-dose, and whether you drink mostly espresso or milk drinks.
