Overview
The Petrus PE3320 is a feature-rich semi-automatic from a Chinese brand that has built a solid domestic following. The 58mm commercial-standard portafilter accepts third-party baskets from VST and IMS, opening up significant upgrade potential. The pre-infusion system applies low-pressure water for several seconds before ramping to full pressure, improving extraction evenness. A built-in cup warmer on top adds a professional touch. The commercial-style steam wand provides enough power for proper microfoam production with practice. The PE3320 targets the Chinese domestic market primarily but has gained international attention through cross-border e-commerce platforms. Build quality is solid with a mix of metal and quality plastics.
The Petrus PE3320 comes equipped with pre-infusion for even extraction. It features a thermoblock boiler system made of stainless steel. The vibratory pump delivers 20.0 bars of pressure for optimal extraction.
Priced at $230, the Petrus PE3320 is designed for budget-conscious beginners and casual coffee drinkers. As a semi-automatic machine, it gives you control over the brewing process while handling pressure and temperature automatically.
In terms of build quality, the Petrus PE3320 is a substantial machine, weighing in at 6.0 kg, manufactured in China, drawing 1400W of power. With dimensions of 295 x 285 x 330 mm (W×D×H), make sure you have adequate counter space. The built-in water reservoir holds 1600 ml, making it easy to set up anywhere in your kitchen.
Pros & Cons
Pros
- Pre-infusion gently saturates the coffee puck before full pressure, improving extraction evenness
- Stainless steel boiler is corrosion-resistant and easy to maintain
- Standard 58mm portafilter is compatible with a wide range of third-party baskets and accessories
Cons
- No PID temperature control — requires temperature surfing for consistent results
- Thermoblock heating may not match the temperature stability of traditional boiler designs
- Vibratory pump can be noisy and may not last as long as rotary alternatives under heavy use
Full Specifications
| Brand | Petrus |
|---|---|
| Model | Petrus PE3320 |
| Category | Semi-Auto |
| Status | Current |
| Country of Origin | China |
| Year Introduced | 2020 |
| Boiler Type | Thermoblock |
| Boiler Material | Stainless Steel |
| Pump Type | Vibratory |
| Pump Pressure | 20.0 bar |
| PID Control | No |
| Pre-Infusion | Yes |
| Pressure Profiling | No |
| Flow Control | No |
| Group Head | Proprietary |
| Portafilter Diameter | 58 mm |
| Steam Wand | Commercial |
| Water Source | Reservoir |
| Reservoir Capacity | 1600 ml |
| Cup Warmer | No |
| Dimensions (W x D x H) | 295 x 285 x 330 mm |
| Weight | 6.0 kg (13.2 lbs) |
| Wattage | 1400 W |
| Voltage | 220V |
| MSRP | $230 |
Our Verdict
The Petrus PE3320 from Petrus is a capable machine in its category. At this entry-level price point, it offers a solid introduction to home espresso. Remember that the grinder matters at least as much as the machine — budget accordingly. Consider your workflow needs (straight espresso vs. milk drinks), counter space, and grinder pairing when making your final decision.
Frequently Asked Questions
Is the Petrus PE3320 good for beginners?
The Petrus PE3320 is a solid entry point for beginners at $230. It's affordable enough to learn on without a major financial commitment. Pair it with a capable grinder and you'll be making genuine espresso quickly.
How often does the Petrus PE3320 need maintenance?
Regular maintenance includes daily backflushing (for machines with solenoid valves), weekly cleaning of the group head and portafilter, and descaling every 1-3 months depending on water hardness. Using filtered water significantly reduces scale buildup and extends machine life.
What grinder should I pair with the Petrus PE3320?
At this price point, budget at least as much for a grinder as the machine itself. Popular choices include the Eureka Mignon series ($200-$400), Baratza Sette 270 ($300-$400), or a hand grinder like the 1Zpresso JX Pro ($160) for excellent grind quality on a budget.
Recommended Grinder Pairings for the Petrus PE3320
A good grinder is essential for getting the most out of your espresso machine. Here are some grinders that pair well at this price level: