EOFY20 | MHW Astra Collection Bottomless Portafilter: 58mm Black/Black (E61)

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MHW Astra Collection Bottomless Portafilter: 58mm Black/Black (E61)

SKU a-BP7023L-OS

The MHW-3BOMBER Astra Collection Bottomless Portafilter: 58mm Black (E61) features a precision 632-hole filter, ergonomic grip, and complete metal build for clean espresso extraction. Buy now from Coffee Parts Australia.

Precision and Visibility in Every Shot with the Astra 58mm E61 Bottomless Portafilter

Designed for baristas who demand clarity in extraction and consistency in results, the MHW-3BOMBER Astra Collection Bottomless Portafilter (58mm E61 Black) enhances espresso workflow. Its open-bottom design showcases shot clarity while the ergonomic black “obsidian” handle ensures comfort during repeated use. Built to match E61 brew heads, this bottomless portafilter supports cleaner extractions and real-time diagnostic feedback for your puck prep technique.

How the 58mm E61 Astra Bottomless Portafilter Works

Open-Bottom Visibility: Allows direct observation of espresso flow for training, diagnosis, and shot refinement.
632 Precision Holes: Ø0.30mm laser-perforated base ensures even pressure and consistent extraction.
Fully Metal Build: Electroplated aluminum and SUS304 stainless steel for corrosion resistance and durability.
Waist-Style Handle: Ergonomic grip offers stability and control under pressure.
E61 Brew Head Compatibility: Built to fit most standard 58mm E61 group head machines.

Specifications

Product Name: MHW-3BOMBER Astra Collection Bottomless Portafilter: 58mm Black/Black (E61)
Compatibility: E61 group heads (58mm standard)
Filter Type: One-piece stainless steel precision filter
Perforation Count: Approx. 632 holes
Hole Size: Ø0.30mm
Recommended Dose: ~18g (may vary based on grind and roast)
Materials: SUS304 stainless steel, anodised aluminium alloy
Colour: Electroplated black “obsidian” finish
Weight: Approx. 475g
Dimensions: Length ~235mm, Head diameter ~80mm

Key Features of the MHW Astra Bottomless Portafilter 58mm (E61)

✅ Precision Extraction: 632 finely milled holes deliver clean, even pressure across the puck.
✅ Bottomless Design: Enhances shot analysis and improves puck preparation accuracy.
✅ Fits 58mm E61 Machines: Engineered for standard E61 group heads including prosumer and commercial setups.
✅ Full Metal Construction: Robust and long-lasting with electroplated finish.
✅ Comfortable Ergonomic Handle: Waist-style grip promotes balance and tamping leverage.
✅ Easy to Clean: Detachable for cleaning and designed for everyday café use.

Why Choose the MHW Astra Collection 58mm E61 Bottomless Portafilter?

A bottomless portafilter is essential if you're serious about espresso precision. This Astra model combines ergonomic comfort, full visibility, and durable construction, all optimised for E61 group heads. It’s a smart upgrade for baristas looking to refine their technique and elevate shot consistency.

How to Use the Astra Collection E61 Bottomless Portafilter

Step 1: Grind and distribute coffee into your 58mm E61 basket (recommended: ~18g dose).
Step 2: Use a coffee distributor and tamper to create a level puck.
Step 3: Lock the Astra bottomless portafilter into your machine and extract as usual.
Step 4: Observe the espresso flow to check for channeling or inconsistencies.

Maintenance & Cleaning

Disassemble after use and rinse with warm water. The all-metal body is resistant to corrosion and simple to clean. Use a brush for any stubborn grounds near the precision holes. Avoid harsh chemicals or dishwasher use. Minor surface markings from manufacturing are normal and not defects.

Questions & Answers

Is this MHW Astra portafilter compatible with E61 machines?

Yes, the MHW Astra Collection 58mm bottomless portafilter is designed for machines with E61 group heads and provides a precise fit.
What makes this a better choice than standard portafilters?

The bottomless design lets you view extraction directly, making it easier to spot channeling and refine your tamping and grind.
How many holes are in the precision filter?

The portafilter basket features approximately 632 holes, each about 0.30mm, for even extraction and reduced fines migration.
Can I use this with my La Marzocco or Breville machine?

This version is designed for 58mm E61 machines. MHW also offers Astra Collection portafilters for La Marzocco and Breville—see product variants.
Where can I buy the MHW Astra 58mm bottomless portafilter?

You can order the MHW-3BOMBER Astra Collection 58mm E61 bottomless portafilter directly from Coffee Parts Australia for fast delivery and full local support.

MHW-3BOMBER Astra 58mm Bottomless Portafilter (E61) Review

The MHW-3BOMBER Astra Collection 58mm Bottomless Portafilter (E61) offers premium build quality, aesthetic design, and high extraction accuracy. Whether you're dialling in a new grinder or troubleshooting channeling, this tool gives you immediate visual feedback. Built to complement the full MHW-3BOMBER Astra Collection, it pairs well with distribution tools and barista accessories for a complete espresso setup.

Brand	MHW
Model	Bottomless Portafilter: 58mm
Suits	E61 58mm Machines
Size	58 mm
Colour	Black/Black