Basically as long as the water have no smell, taste glycol and exceeded mineral salt content, can brew beer. Just based on what characteristics the brewer what to give the beer, that give better taste of the beer. For example, Pilsen using soft water, and the famous brand Guinness using filtered hard water.
Before the grain gets to the brewery, it goes through a process known as malting. The sugar within the grain, which will feed the yeast during fermentation, is locked away in complex molecules of starch. When the seed start to grow, the starch is broken down into simple compound. After that, germination is stopped and the malt will be dried and heated to different type of malts.
Malts basically divided in 3 types
>Golden basic malt usually bring toast, biscuit or nuts aroma
>Caramel/ Crystal malt usually in brown or ruby color, with toffee, caramel, dried fruit or honey aroma
>Black malt in black used to bring out smoky, coffee, baked aroma
Hops belong to marijuana climbing plants, its flowers used in beer brewing. Given the balance of bitterness and aroma of beer, also anti-bacterial, naturally make beer bacteria difficult to survive.
During the fermentation, Yeast turn sugar into alcohol and carbon dioxide, that mean turn the wort into beer. Different yeast produce different aroma, it is a miracle ingredient that give beer special aroma and taste.
The brewing process of craft beer is Milling
Hold the glass in front of you and pay attention to its color. Don’t hold the beer to a light, as the color of the light will interfere with the real look and color of the beer. Pay attention to its consistency, color, and the head on the beer.
Gently agitating your beer in the glass allows the smells trapped in the beer to escape. Swirling the beer also helps you to see the color and head retention, or how well the head on the beer stays in one piece.
Most of what you experience when you taste anything is smell. Take a deep sniff of the beer to fill your nose with its aroma. This will give you a basic idea of the smell and taste before you even drink it.
Take a small sip of the beer. Swish the beer around in your mouth so all your taste buds get their turn with it. While the beer is still in your mouth, breathe out through your nose. This action, called retro-olfaction, will be similar to your initial smell of the beer, but should be slightly different due to the temperature difference of the beer. At this point, notice the different tastes of the beer, including sweetness, bitterness, and acidity.
Appearance / Aroma / Flavor / Mouthfeel / Overall Impression