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IMS Filter Basket for 58mm Portafilters, Step Down

$25.00
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IMS Competition Stepdown Single Basket (58mm) for 10–15g doses delivers improved flow distribution, reduced channeling, and stable, high-extraction single espresso shots.


Description

The IMS Competition Single Basket - Stepdown is a precision-engineered filter basket developed in collaboration with IMS exclusively for Verybarista.

Designed for 10-15 grams, it produces a strong, balanced single espresso with improved flow dynamics compared to traditional cylindrical single baskets.

The stepdown geometry modifies internal water distribution, promoting lateral flow through the puck and reducing localized over-extraction.

Engineered for both regular and bottomless 58mm portafilters.

Why Stepdown?

Traditional single baskets are notoriously difficult to dial in due to uneven puck saturation and central channeling.

The IMS Stepdown profile addresses this by:

  • Creating a controlled reduction in diameter at the base
  • Encouraging water to move both vertically and radially
  • Increasing resistance uniformity across the puck

Result:

  • Reduced channeling
  • More stable extractions
  • Improved crema formation
  • Smoother mouthfeel
  • Noticeably better performance with decaffeinated coffee

Who Is This For?

  • Baristas seeking improved single shot consistency
  • Professionals dialing in decaf
  • Cafés offering single-origin espresso options
  • Home baristas wanting precise 10–15g single shots

Compatibility

Compatible with 58mm group head machines, including:

Astoria CMA, Bezzera, Brasilia, Casadio, Conti, ECM, Elektra (commercial), Expobar, Faema, Fiorenzato CS, Futurmat, Gaggia (commercial), Gaggia Classic, Grimac, La Marzocco, La Pavoni (commercial), Nuova Simonelli, Profitec, Rancilio, Rocket, Slayer, Synesso, Vibiemme, Victoria Arduino, Wega

Compatibility Notice: Please verify your exact machine model and portafilter diameter before ordering, as brands often use different sizes across models. If you are unsure, contact us before purchasing - we’re happy to confirm compatibility.

Instructions & Care

Cleaning & Maintenance:

  1. After each use:
    Knock out spent puck, rinse basket under warm water to remove fines.
  2. Weekly/bi-weekly deep clean:
    Soak basket in espresso machine cleaner (order here) to dissolve oils and residue. Rinse thoroughly afterward.
  3. For stubborn buildup:
    Use a soft brush or drop into boiling water for a few minutes. Avoid abrasive pads that may alter the membrane.
  4. Dry completely:
    Air‑dry fully before storage or reuse to prevent oxidation.
  5. Inspect membrane regularly:
    Watch for clogging or deformation—consistent extraction indicates healthy filter performance.

What's Included?

One filter basket in an original IMS box.

Specifications

  • Material
    High-quality stainless steel.
  • Roast
    All roasts
  • Portafilter
    For 58 mm portafilters
  • Height
    h28 - 28mm
  • Hole pattern
    IMS Competition precision M perforation.
  • External border
    Ø 70 mm (B70)
  • Tamper
    Suitable for use with a 58 - 58.5 mm tamper.
  • Average capacity
    10/15 gr
  • Ridge
    Ridgeless

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