While glass, aluminum, and stainless steel are the most common materials used for storage vessels, some people (ahem) choose the convenient option of storing beer in plastic bottles, leading to questions about the qualitative impact this might have. When it comes to beer storage, a primary concern of brewers is prolonging shelf-life, which can only be done by restricting exposure to oxygen and contaminants.
Shockingly to me, these beers were identical to my senses, even in terms of carbonation and foam quality, which I did not expect. My Impressions: Out of the 3 semi-blind triangle tests I attempted, I didn’t pick the odd-beer-out a single time and will concede that all of my attempts were mere guesses. While 12 tasters (p<0.05) would have had to accurately identify the unique sample in order to reach statistical significance, only 7 did (p=0.58), indicating participants in this xBmt were unable to reliably distinguish Dark Mild stored for 5 weeks in a plastic Nalgene bottle from one that was kept in a keg. Each participant was served 1 sample of the beer stored for 5 weeks in a plastic bottle and 2 samples of the beer stored in a keg in different colored opaque cups then asked to identify the unique sample. Left: stored in Nalgene bottle | Right: stored in keg | RESULTS |Ī total of 21 people of varying levels of experience participated in this xBmt. | METHODS |įor this xBmt, I used a Short & Shoddy Dark Mild that I had on tap at the time. To evaluate the differences between a Dark Mild stored in a plastic Nalgene bottle for 5 weeks and one kept in a keg. Rather than provide a presumptive response, I thought it’d be better to test it out. That is, until I mentioned this practice in an episode of The Brülosophy Podcast, after which I was contacted by many listeners who wondered if doing so has any impact on beer quality. Made from BPA/BPS-free Tritan plastic, Nalgene bottles have been my go-to for transporting beer since then, though I hadn’t really considered actually storing beer in them for longer than a few hours.
Voila! No leaking whatsoever, not even when the bottle was shaken vigorously, which indicated to me it also likely wouldn’t allow oxygen in. With the initial bottle filled, I quickly learned the standard cap would leak if the bottle was even barely agitated, so I swapped it out for an aftermarket cap. A few years ago, fed up with filling small-mouthed glass bottles and growlers to transport xBmt beers for data collection, I had the idea to try filling one of the 32 oz/1 L Nalgene bottles I use daily for water. More recently, advanced beer storage options have hit the market that promise to even further improve shelf-life, for example, by allowing for the purging of oxygen with CO2.Īnd then, there are more rudimentary vessels one can store beer in, products that were never really intended for such a purpose. The most common types of packaging material used for beer are glass bottles and aluminum cans, both of which are essentially impermeable to oxygen and spoilage microbes.
Pig’s Ear British Golden Ale (Patreon 27).See A Dentist Flanders Red Ale (Patreon 19).6 Pint CitraMarillo Blonde Ale (Patreon 16).Too UnCommon California Common (Patreon 15).Top O’ The Morn Oatmeal Stout (Patreon 11).What’s A Hill? Midwest IPA (Patreon 10).Smiling Sky Summer Pale Ale (Patreon 1).
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