Overview

The IMS Big Bang 54mm precision filter basket from verybarista is designed for bottomless Breville and Sage portafilters. Its flat bottom, ridgeless profile, and specialized hole pattern aim to deliver a more even espresso flow while supporting the 16-21 g dose range. Crafted in Italy by IMS, this basket is built to fit Breville and Sage 54 mm group heads, including popular models like Barista Pro, Express, Bambino, and more. The design emphasizes a smoother extraction trajectory that can reveal sweetness and balance across a range of roasts when used with the right grind and tamping technique.

Key design features and what they may mean for your shots

• The pattern centers holes toward the middle of the filter, with more holes near the center and closer spacing. This center-first distribution helps direct espresso flow, potentially contributing to uniform extraction across the puck.
• A ridgeless, flat bottom design supports steady, unblocked pours that reduce the chance of channeling and promote a steady espresso output.
• The Big Bang design emphasizes the natural sweetness in certain coffees, offering a profile that can lean toward balanced sweetness while moderating acidity when used with suitable roasts.
• Available in three heights to accommodate different coffee styles and dose targets, specifically tuned for 16-21 g doses and tampers in the 53–53.5 mm range.
• Manufactured in Italy by IMS, a name associated with precision filtration and portafilter compatibility for 54 mm group heads.

Usage notes and compatibility

For best results, pair this basket with a compatible 54 mm Breville or Sage machine and a setup that aligns with a 16-21 g dose. The basket is designed for bottomless portafilters, enabling visibility into flow behavior as you dial in grind size and tamp pressure. IMS notes that the pattern can enhance a sweeter extraction and reduce sharp acidity, though results will vary with roast level, coffee origin, and your grinder settings.

• Fits 54 mm Breville and Sage machines such as Barista Pro, Express, Bambino, Impress, and related models.
• Three height options give you flexibility for different coffees and dose targets while preserving consistent flow characteristics.

Cautions and recommendations

IMS observes that the Big Bang basket may alter perceived sweetness and acidity depending on the coffee roast and origin. It is not recommended for very light or citric coffees if you prefer a brighter or more aggressive profile, as the pattern can emphasize sweetness in some roasts.

What you get

One IMS Big Bang 54 mm filter basket, designed for precision and consistent extraction, built to fit Breville and Sage 54 mm portafilters. Each unit reflects IMS craftsmanship and is tailored for home and small café setups that use bottomless configurations.