Actually, the question’s options and the answers provided are both incorrect. The highest temperature starch needs for hydration is 83°C. Water boils at 100°C, thus you dont need boiling water. Additionally incorrect is cold water, but this is due to the cooking pot rather than the pasta. Since salt is composed of ions, when it dissolves, the ions must make connections with other atoms. The ions may attach to the highly charged iron atoms in the cooking pot if the water is cold rather than being encircled by low-energy water molecules. However, after ten years, damage to the cooking pot will become apparent. Salt is added to the cooking water to stop the pasta’s starch granules from combining rather than swelling during hydration. Because if they combine, the pasta loses its elasticity and becomes less palatable to our tongues due to the sugar taste of the starch, which makes the pasta feel awkward and taste awful. Because of this, it’s said that you can never add too much salt to boiling water. As a general rule, use one teaspoon per liter of water. Since you can cook pasta like risotto, there is no standard amount of pasta to water.
It doesn’t really matter whether you start with cold or hot water when cooking dried pasta because the pasta is primarily submerged in water to stay hydrated. Additionally, the hydrated starches cook the pasta by gelatinizing at a specific temperature. It is actually better to use less water when starting with cold water.
The best way to cook pasta is to bring a pot of water to a boil, add salt, and then add the pasta, stirring occasionally. When you run out of heating fuel, you can use cold water cooking to soak the pasta and boiling cooking water for indolent cooks who don’t want to stir constantly.
Due to its high sensitivity to cooking time, pasta can quickly go from being al dente to an overcooked mush if it is cooked for an excessive amount of time. Boiling it in water guarantees consistent cooking conditions and a constant temperature, irrespective of the water’s initial temperature, the kitchen’s temperature, and the burner’s power. Therefore, cooking it for the same length of time is a safer bet.
Does a Large Pot Boil Faster?
Occasionally, people will say that “using a large volume of water will help the water come back to a boil more quickly.” Want to hear something even more intriguing? “.
Take a moment to retract that statement, as it is not accurate. In actuality, this is not the case in the majority of real-world situations.
But why is that the case if, when a fixed amount of pasta is added to a small pot, the temperature in that pot drops more than it does in a large pot, and as a result, the large pot returns to a boil faster? Let’s look at the ideal situation first.
You have two pots of water. Four times as much water is in one, with a quart in one and a gallon in the other. Both have reached a full boil of 212°F (100°C) and are perched atop identical burners. Now add a cup of dry pasta to each one. The water in each pot will cool down because the pasta is room temperature, and the water in the quart-sized pot will cool down four times faster than the water in the gallon-sized pot. *.
*Ah ha!, you say. It must take four times longer for the small pot to re-boil if the temperature dropped by four times!
“The two water pots come back to a boil simultaneously!”
This line of thinking is flawed because it ignores the fact that raising a quart of water by one degree requires four times as much energy as raising a gallon of water. The small pot, which must cover a temperature differential four times larger than the large pot, coincidentally heats up four times faster because a burner emits energy at a fixed, constant rate. This implies that the two water pots come back to a boil simultaneously!*
*To put it in perspective, the energy and time needed to raise a cup of dry pasta from room temperature to 212°F are also the same.
The “big pots boil faster” camp is even less accurate in reality. See, the larger a pot, the greater its surface area. Additionally, a hot body can lose heat to the outside world more quickly the larger its surface area. How does this affect heating?.
Assume your burners produce a very respectable 10,000 BTU of heat energy. Your small pot may be losing heat energy at a rate of 1,000 BTU to the kitchen air in the meantime, leaving you with a net energy input of 9,000 BTU. However, a large pot’s greater surface area means that it will lose heat more quickly. Lets say, 2,000 BTU. With a large pot, the net energy input is only 8,000 BTU because your burner is still the same and produces 10,000 BTU.
As a result, a large pot will take longer than a small pot to return to a boil. *.
* The argument against big pots is further complicated by the fact that this does not even account for heat loss through evaporation.
Take It to the Limit: Soaking Pasta
The folks over at Ideas In Food have written about “1-minute pasta.” The trick? Soak dried pasta in water until it is fully hydrated. Once thats done, all youve got to do is cook the pasta—say, by tossing it in hot sauce—and it comes out as if it had been cooked and hydrated all at the same time. The beauty in this method is that by pre-soaking pasta and having it sitting in your fridge, you dont have to bring a pot of water to a boil every time you want to eat it. Pasta prep becomes almost immediate.
These days, I usually cook my pasta in this manner: I start it to soak while I make a sauce or other ingredients. The pasta is hydrated by the time the sauce is heated and ready, so all I have to do is add it to the sauce and let it cook through. Easy!.
I also use this technique to make lasagna, such as this version with creamy spinach and mushrooms.