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The Phenomenon of the Swollen Pellet Foils

Every now and then – luckily very rarely – one can see big aluminum foils filled with hop pellets that are so swollen that one expects the foils to burst at any second. And that could actually happen with the result that the foil pulls in air and the oxygen will spoil the hops. How does this happen?   The main culprit can be quickly identified: heat! It is known that hops don’t like heat (at least... read more

The colour green – or why hops ought to be selected in the dark

Green is the colour of hope. The word is derived from the Old High German verb “gruoen”, meaning “to grow”, “to sprout” or “to flourish”. No wonder that hops are green, then. But do they have to be? Does colour tell us anything about quality? What are we looking for in hops? Do they have to look good? Does anyone ever see them, apart from the brewer, his apprentices and the people in the lab? Aren’t the... read more