The Sibarist Booster 63 is a specialized contact-reduction tool designed specifically for conical coffee drippers. By altering the interaction between the filter paper and the brewer walls, it allows for unprecedented control over flow dynamics and extraction uniformity.

Standard conical drippers rely on internal ribs to keep filter paper from sticking to the walls. However, paper “choking” can still occur at the bottom exit point, leading to slow draw-downs and bitterness. The Booster 63 sits at the base of your 60-63° dripper, creating a structural lift that prevents the paper from sealing against the exit hole. This radial air-flow design ensures that water exits the coffee bed consistently across the entire bottom surface area.

Key Technical Benefits

• Enhanced Flow Velocity: By eliminating bottom-clogging, the Booster 63 allows for a faster, more linear draw-down, even when using very fine grind settings.
• Increased Clarity: Improved flow dynamics reduce the contact time of “stagnant” water, resulting in a cleaner cup profile with more transparent flavor notes.
• Thermal Stability: Made from thin, high-quality stainless steel, it reaches brewing temperature almost instantly and maintains heat throughout the extraction.
• Zero Bypass: Unlike side-wall spacers, the Booster 63 optimizes the exit path without allowing water to bypass the coffee bed.

Specifications

The Booster 63 is particularly effective for brewers who find their V60 brews “stalling” toward the end of the pour. By installing the Booster 63, you can achieve higher extraction yields through finer grinding while maintaining the fast draw-down times required for modern, high-clarity brewing styles.