Flavors of Dusseldorf
Mustard comes in many varieties and flavors, and there can be, as a recent blind tasting proved, an equally wide range of tastes and colors even within a specific type of mustard.

Mustard comes in many varieties and flavors, and there can be, as a recent blind tasting proved, an equally wide range of tastes and colors even within a specific type of mustard.
Ditto for the wording on the labels, which can read "Düsseldorf," "Düsseldorf style," or say nothing at all, even when the mustard is made in Düsseldorf. You may need to linger in the condiments aisle and read labels to get some idea of what you're buying.
Tasters sampled a variety of mustards in the Düsseldorf style. Four were made in the United States, the fifth in Germany.
Look for most of these mustards in your area supermarkets or gourmet grocers. All but the White Castle mustard are available via the online store (store.mustardmuseum.com) of the National Mustard Museum in Middleton, Wis. Prices below are from the museum's website. The White Castle Düsseldorf mustard is sold in the chain's restaurants, but only in certain regions, including the Midwest; telephone a local franchise to check availability.
The mustards are ranked in order, from most favored (1) to the least (5):
1. Koops' Düsseldorf: This very smooth, khaki-colored mustard had a nice vinegary bite and a spicy, almost-meaty, mouthfeel. Made by Olds Products Co. of Pleasant Prairie, Wis. $3.75 (12 ounces).
2. Lakeside's Hot German Düsseldorf mustard: Grainy, dark yellow in appearance, this mustard had a strong vinegar flavor. Distributed by Lakeside Foods of St. Francis, Wis. $4.75 (8 ounces).
3. White Castle Düsseldorf mustard: Made for the Columbus, Ohio, fast-food chain's Midwestern outlets and available there as a retail item, this mustard has a ruddy brownish color, perhaps from the turmeric and caramel color listed among the ingredients. Strong flavor and scent of cloves. $2.49 (10 ounces).
4. Beaver Düsseldorf mustard: Made by Beaverton Foods of Beaverton, Ore., this mustard had a vegetal, herbal aroma and a pronounced celery flavor. Medium-coarse grind, bright-yellow color. $3 (4 ounces).
5. Alstertor Düsseldorf Style mustard: Made in Hamburg, Germany, this mustard is packaged in a distinctive glass container shaped like a beer stein. A vivid yellow, the mustard has a sharp vinegar aroma and flavor. $6.25 (8.45 ounces).
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