I suppose you could but flour or corn starch will work much better.
Some people use masa flour. I have used instant mashed potato flakes in a pinch. They don't add a flavor, just thicken.
i rely do not know
3Tblspn
That depends on how much sauce you are making. For a couple of cups, a few tablespoons should be enough. I make a slurry of water and corn starch and then add it to the mix. Cook until it turns translucent.
No, not in tiny amounts. However, it can cause weight gain if you eat a lot of it.
Brown sauce is thickened with flour or corn starch. Corn starch makes it creamer, flour makes it more countrified. You mix the flour with water and shake it up until all the lumps disappear. How much you use depends on how much sauce you want and how thick. In order to make it browner you may use left over coffee to thicken with.
A 55 gallon drum will hold approximately 390 lbs. of corn. If the drum has a funnel installed, may hold as much as 430 lbs.
Yes, and Asda etc. But it's called corn flour in the UK. Same stuff that used as a gravy thickener etc. Look in the flour isles. There similar but not the same. Corn starch is pure starch whereas Corn flour is starch+protein, flour takes about twice as much to achieve the same thickening and adds a white creaminess where as corn starch is clear.
Five gallons.
I use corn starch. Cherries and juice in a sauce pan on the stove. Corn starch and water stirred in and simmer until it thickens. The filling will thicken more when it cools after baking, so about the consistency of mayonnaise.
Zero as you can not make a gallon of gasoline from water.