--- title: Stack Brewing Launched Sleeks By Retro-Fitting Their System For New Capabilities description: Stack Brewing retrofitted their 10+ year-old ACS V4 canning system to add Sleek can capabilities, enabling them to launch a new seltzer line without starting from scratch on new equipment. image: https://case-studies.cask.com/hubfs/Stack%20Brewing%20Cross%20Czech.jpg --- ![Stack Brewing Logo](https://case-studies.cask.com/hubfs/Stack%20Brewing%20Logo.svg) # Stack Brewing Launched Sleeks By Retro-Fitting Their System For New Capabilities ![Stack Brewing Cross Czech](https://case-studies.cask.com/hs-fs/hubfs/Stack%20Brewing%20Cross%20Czech.jpg?width=1080&height=1300&name=Stack%20Brewing%20Cross%20Czech.jpg) Industry Brewery Challenge Stack Brewing was launching a new seltzer line in sleek cans, but their 10-year-old ACS V4 system wasn’t capable of changing diameters. Upgrading their system, while otherwise still in great operating shape, would strain their budget. Results By retrofitting their existing ACS V4 with a sleek can fill head and leveraging Cask’s service team, Stack saved over $110K, extended the life of their canning system, and launched a new product line - fast. Equipment ACS V4 [ stackbrewing.ca/ ](https://stackbrewing.ca/) $110K Investment Capital Saved 10+ Years of Continued Production 2 Day Retro-Fit Installand On-Site Maintenance ## Helping long-time customers like Stack Brewing get even more value out of their existing gear is what we live for. Whether it’s a retrofit, a refresh or a full upgrade, we’re here to make sure our customers have a canning system that keeps pace with their growth. ![](https://46150564.fs1.hubspotusercontent-na1.net/hubfs/46150564/Slopek%20Vector%20Image.png) Michael Slopek Head of Customer Success @ Cask ![Stack Brewing Sleek Can SKUs](https://case-studies.cask.com/hs-fs/hubfs/Stack%20Brewing%20Sleek%20Can%20SKUs.jpg?width=1080&height=1300&name=Stack%20Brewing%20Sleek%20Can%20SKUs.jpg) ## About Stack Brewing Founded in 2013 in Sudbury, Ontario, Stack Brewing has grown from a small craft outfit to a nationally recognized brewery, earning awards from the Ontario Brewing Awards and Canadian Brewing Awards. Known for high-quality beer and community roots, Stack is now expanding distribution across the province—and their innovation shows no signs of slowing down. ## The Challenge As Stack prepared to launch a new seltzer line in sleek cans, they hit a roadblock: their decade-old ACS V4.2 system, installed back in 2013, wasn’t built for sleek formats. Their options? Buy a new canning system, outsource the run to a co-packer, or walk away from the new SKU entirely. Each option came with tradeoffs: capital costs, production delays, and operational complexity. Stack wanted to stay nimble, keep production in-house, and move quickly without compromising quality. ## The Solution Instead of upgrading their existing line, Stack partnered with Cask to retrofit their current ACS V4 with sleek can fill heads. This is part of a growing library of retrofit kits Cask designed to keep legacy systems in-play and meeting new demands. The cost? Roughly $19,000 - a fraction of a new system. At the same time, Stack extended their service visit by a day to perform preventative maintenance, ensuring the system was tuned and ready for the busy summer season. > "This allowed us to get going right away. The install of the new fill head went well and the Cask techs were very knowledgeable." - Derek Jackson, Head Brewer @ Stack Cask’s engineering investment in retrofit compatibility reflects a larger commitment: empowering customers to adapt and grow without forcing a complete system overhaul. ## The Results Stack successfully launched their sleek can seltzer line using the system they’ve trusted for over a decade. With the new filler head installed and their system refreshed, they gained the flexibility to run new formats while extending the lifespan of their original system. What could’ve been a costly bottleneck became a smart, scalable step forward. And if they do upgrade their canning system in the future, they get to do it on their terms. ## Ready to explore retro-fits? ![Connect With Cask](https://no-cache.hubspot.com/cta/default/46150564/interactive-183235247690.png) ## Related case studies [![](https://case-studies.cask.com/hs-fs/hubfs/RedWillow%20Brewery%20Cans.webp?width=1080&height=1080&name=RedWillow%20Brewery%20Cans.webp) Brewery ### RedWillow Navigated Retail Growth With Low Brite Can MOQs And Credit Terms That Scaled With Them ](https://case-studies.cask.com/customer-stories/redwillow-low-brite-can-moqs-and-credit-terms?hsLang=en) [![](https://case-studies.cask.com/hs-fs/hubfs/The%20Shop%20Beer%20Co%20Candids%20006.jpg?width=2048&height=2048&name=The%20Shop%20Beer%20Co%20Candids%20006.jpg) Brewery ### The Shop Leverages Supplier Relationships as a Strategic Advisor for Growth ](https://case-studies.cask.com/customer-stories/the-shop-taps-into-can-supply-relationships-as-a-growth-lever?hsLang=en) [![](https://case-studies.cask.com/hs-fs/hubfs/Marketing%20Images/Cold%20Ones%20GP%20Brew.jpg?width=640&height=640&name=Cold%20Ones%20GP%20Brew.jpg) Brewery ### GP Brewing Uses Forecasting to Confidently Manage Can Inventory Through Growth ](https://case-studies.cask.com/customer-stories/gp-brewing-uses-forecasting-to-confidently-manage-can-inventory-through-growth?hsLang=en)