There is 76 tsp in a 14 ounce jar of prepared mustard.
That jar is 72 teaspoons.
30 ounces.
There are approximately 85 teaspoons in a 15 oz jar of caramel.
4 ounces is 24 teaspoons. (1 ounce=6 teaspoons)
That is approximately 90 teaspoons
At your local grocery store.
You can buy organic yellow mustard in a glass jar at tropicaltraditions.com
In a small standard Colemans jar there is 50grams
You can get it for a dollar in the Dollar Store.
A 5 gram jar typically holds approximately 1 to 1.5 teaspoons of powder, depending on the density of the product.
I don't know about "lick the jar," but "cut the mustard" means to perform adequately in some demanding or arduous role, often used in the negative: We needed a real go-getter in that job, and he could not cut the mustard.
It depends on the size of the jar. You can usually find this information on the back of the label.