I’ve been looking at these beer engines that can be fitted to bag-in-box. It eliminates the cask spile or breather question by simply pulling the beer from the bag — no air is introduced to the beer. The bag collapses as the beer is pulled.
After fermentation (or a cpl points before finishing), the beer is transferred into the bag vs a cask, primed, and allowed to secondary ferment/clear/condition etc. and clean up any inadvertent O2 pickup.
The spigot on the bag is then connected to the Beer Engine via a connector and push fit hose. The bags come in various sizes (3, 5, 10 liter etc.) and are reusable. The soft drink industry has been using them for years (which is why we could buy their used corny kegs).
I’ve seen one guy put the bags in plastic totes vs the cardboard box and stack them. He had a cpl different beers in different totes that could be easily interchanged. Pull it out, hook it up, pump a pint or three, disconnect the bag, and re-refrigerate until next session.
Pretty cool way to solve the staling issue while serving thru an engine.
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