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Old Tin


Black Ivan

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Recently I received a Coopers draught home brew tin that was only 2 weeks away from it's use by date.I didn't think to check the yeast use by.

 

It brewed very slowly and when finished had a thin orange scum on top.

 

Not at all like my normal Coopers draught brews.

 

I tried one bottle after 8 weeks and it was much darked than my normal draught and also tasted quite different, but quite nice.

 

Anyone know why its properties would change?

 

I always make draught and I made this in exactly the same way I always do.

 

 

 

Stefan

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Home Brew concentrate will darken with age and exposure to high temperature, developing a toffee aroma that does not dissipate when fermented. Some people like this character while others (myself included) don't care for it. As an example, the Original Series Lager will become as dark as the Original Series Bitter in 2 years....darkening is more noticeable with brews that are light in colour when packaged and the toffee character is less noticeable with Dark and Stout (even considered desirable).

 

The other issue with age is the viability of the yeast. The amount of live yeast cells will decrease over time. Out of date product may struggle to ferment (attenuate) the brew fully.

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