Understanding Beer: Pasteurization vs. Non-Pasteurization

This is one of the most common discussions at a bar table.

Someone always appears saying:
“Chop is cooler.”
“Bottle beer has a preservative.”
“Chop is better.”

But the reality is much less mysterious and a little more scientific. Most of the time, the difference is in the pasteurization.

The beer in Brazil is usually non-pasteurized, served directly from the barrel. Most of the beers in bottles or cans undergo pasteurization, a thermal process that stabilizes the drink.

In simple terms: the beer is heated in a controlled way to Inactivate yeasts and bacteria, increasing its shelf life and ensuring stability during transport and storage.

That’s why a beer can travel kilometers, cross countries, and still reach the consumer stable. But heat also causes small sensory changes.

Some more delicate aromas, especially those linked to fresh hops, can transform or decrease. Therefore, many people perceive the beer as more “alive” or “vibrant.” On the other hand, more robust styles, such as bocks, porters, or stouts, tend to feel this impact much less.

In other words, pasteurization is neither a villain nor a heroine. It is a technological tool that allows the beer to exist outside the brewery’s cans.

In the end, beer and beer are the same drink; what changes is how it was prepared to reach you.

And maybe that’s the best part of the brewing culture: even a seemingly simple pub conversation can reveal a little bit of science.

— Maria Anita Mendes
PhD in Chemistry | beer sommelier

---

#craft beer
#brewing culture
#sommelierdecervejas
#beer science
#beerscience
#chopp
#beerculture
#beer