Judy, Ignore people who get snippy with their answers. You probably know a million things at your age that they don't know. I'm a couple of years older than you, been cooking for decades, and I'm right here right now because I googled "grainy mustard", seeing it for the first time in a recipe today. I picked this link because--just as you did--I thought it would be a nice group of helpful people. But apparently we offended their sensibilities with our foolish question.

Reminds me of a time I called New York from California, to a supplier for our business. When they gave me the name of a nearby town, I asked the spelling. She acted like I had asked how to spell "cat". I rattled off a few Spanish names of cities in California and asked if she could spell them. People forget that their experience doesn't exactly mirror theirs. This is kind of arrogant, if you ask me. I'll look for you on Facebook--we can swap cooking experiences.