The tastes for beer they are quite divided. It seems that nobody likes it the first time they take it, but over time there are those who end up loving it more and more. On the other hand, other people never get to bear it. But if there is something that both of them tend to have in common, it is that they know much better in a glass bottle than in a cana.
This has quite an explanation. psychological, because we are predisposed to like beer in glass better. But there is also something chemistry in this issue. And it is that, although it is normal for no material to change the flavors too much, small amounts could be released that cause a certain variation.
Now, we must assume that beer cans are lined on the inside, so that, in reality, the drink not in direct contact with metal. The explanation is a bit more extensive, but let’s see then what is due and what factors come into play.
One of the main arguments of those who hate canned beer is that it tastes like metal. In addition, this also applies to other drinks such as refreshments. Almost everyone prefers them in a glass bottle to avoid that unpleasant taste.
However, it should be noted that these cans have a plastic coating, similar to that of water bottles. The amount is minimal, so it shouldn’t alter the flavor of the beer or soda. But it is enough to camouflage the metal. In fact, it is used precisely to prevent metal particles from passing into the drink, as he explained to Business Insider chemist Rick Sachleben. The problem is that when we drink directly from the can, the drink goes into our mouths through the hole and what remains of the ring. This is just metal, so it might slightly affect how we perceive the taste.
Therefore, if we drink beer from a can, it may be recommended transfer it to a glass first. Moreover, drinking in a glass is always a good idea, since our nose is closer to the outlet of the drink, so we perceive both its flavor and its aroma. Thus, all the nuances are better captured and the sensory experience is more complete.
Beer cans also have their advantages
Beer contains many substances that can be altered by the effect of light. For example, it contains sulfur amino acids, which in the presence of a vitamin that is very abundant in beer, called riboflavin, oxidize, generating new compounds that can change the taste, making it more unpleasant. Also some substances present in hops can be degraded by the effect of light. The result of all this is known as “lightstruck“and can make a delicious beer undrinkable.
For that reason, we could consider that cans are a better option, since they are completely opaque.
Fortunately, the vast majority of glass bottles are dark colors, which limit the access of light to its content. This is a need that was discovered through wasting many batches of beer, because clear glass was used in the past. Then brown began to be used. Nevertheless, during world war II The glass of this color was in great demand, so the green bottles were manufactured. And so until today. Currently there are many different colors, but green is still one of the most common.
Prejudice even reaches beer containers
In 2016, a study was published in which the perception of a group of volunteers about the taste of beer, whether it was in a can or in a glass bottle, was compared.
The participants had to initially perform a survey about your tastes which showed that, in reality, they already had preconceived ideas about it. Most preferred glass bottled beer. And, in fact, when they were given the same beer to taste in the two types of packaging, there was a greater predilection for glass. Specifically, 61.29% preferred glass, compared to 11.29% who opted for cans. As for the remaining 27.42%, he did not notice any differences. Still, the study authors were curious to see if this was due to their preconceptions.
Therefore, they repeated the process with a blind tasting. In other words, the participants did not know the packaging format of the beer that they had to try. Thus there were hardly any differences. There was even a greater predilection for the can, with 45% of the volunteers. But this figure was closely followed by the 41% who considered beer in a glass bottle more enjoyable.
To carry out the blind tasting, the beer was served in a glass, so the problem of the metal and the ring is eliminated. However, it is important to note that this metal taste would be minimal. So it’s far more likely that most of this predilection for glass is psychological. Even so, everyone has their tastes and is free to drink as they prefer. These are the details that science gives us, but the final decision remains ours.