Yes, tartar sauce is mainly mayonnaise so it's need to the handled the same way.
Yes. It really should have been refrigerated before opening, too.
Meringue, which is whipped egg whites, sugar, and cream of tartar, is inherently kosher. When making meringue, you should confirm that the cream of tartar has a valid hechsher. Commercial meringue should have kosher-certification.
Yes anything with dairy in it should be refrigerated.
The pH of cream of tartar is about 5. (So, it's an acid)
To prevent cream (as in cream from milk) from causing foodborne illness, the cream should be pasteurized, stored refrigerated and used before it spoils. Most products using cream as an ingredient should probably be refrigerated, too.
You may substitute cream of tartar for tartaric acid. Cream of tartar is a potassium salt derived from tartaric acid but cream of tartar is not as strong, so it should be used in a ration of 2 teaspoons of cream of tartar for every teaspoon of tartaric acid. Keep in mind that the results would turn out better if you used the real thing.
The creator of cream of tartar was named Mr Of Tartar after the cream ran away with the cheese spoon leaving the small child unable to eat cheese. make sense of that
Not really. Cream of tartar is a weak acid. You may want to try an equal amount of vinegar as a substitute. Cream of tartar does improve elasticity and dough smoothness. It is worthwhile to purchase cream of tartar. Doug dougthecook.com
Cream of tartar is the byproduct of winemaking. Ground vanilla is just that ground vanilla beans1
Cream of tartar is the potassium salt of tartaric acid so contains no sodium.
It should be refrigerated so that it doesn't spoil so fast as when it isn't refrigerated.
If it is an egg custard, it should be refrigerated.