The primary component of pot metal is zinc, but often the caster adds other metals to the mix to strengthen the cast part, improve flow of the molten metal, or to reduce cost. With a low melting point of 419 Â°C (786 Â°F), zinc is often alloyed with other metals including lead, tin, aluminium, and copper.
Although beer has a lower freezing point than water, it will freeze if left in a freezer for too long. The exact length of time varies depending on the beer.A frozen beer can sometimes be saved, but it usually isn't something you'd want to drink as it's often flat. However, all is not lost.he actual freezing point varies depending on the beer's content. Initially, some of the water freezes out of the solution. This is fractional freezing and is used in creating eisbock, a high-alcohol beer. However, be aware that as the water freezes, it expands; this can force the cap off a bottle.
The freezer has an additional problem: Your drinks might explode. The threat of exploding beer has kept me on my toes for years. A freezer beer explosions are dreaded, hated, notorious, infamous. Not only is the contents of your freezer showered with fresh yeast water and glass, your beer supply is destroyed. Luckily, my experience with freezer beer explosions has been very limited, and I would like to keep it that way. In a sober moment of clarity, I came up with a plan: I'd time how long it takes for beer to explode in the freezer, then use that information with a regular kitchen timer to prevent explosions.