Why are beer bottles sometimes made of dark glass?

To understand the reason for this, we should start by pointing out that during the brewing process, the alpha acids in the hops are transformed into isomerized alpha acids. It sounds complicated, but it’s not. It is these acids that give beer its bitterness. But when the beer is exposed to light, the photons trigger a process that causes some of these acids to react with another substance (riboflavin to be exact, better known as vitamin B2). The result is a compound whose structure is quite similar to … wait for it ... the substances found in skunk secretions. Including the smell that goes with it!  See acast.com/privacy for privacy and opt-out information. Learn more about your ad choices. Visit megaphone.fm/adchoices

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