What makes a hot dog a hot dog?

Question

I like hot dogs, but I'm always conscious that they are a means by which unspeakable bits of meat can be made appetising, even when they get a fancy name like bockwurst to cover the fact.

So I bought a packet of Tesco brand vegetarian hot dogs and was surprised to find they look and taste like the ones with meat in them. Then I bought a pack of Tevion vegetarian hot dogs - they taste "right" too and they're kosher! The texture is similar to the real thing with both products as well.

So what makes a hot dog a hot dog? As far as I can see, you don't need meat!

EDIT: The responses so far are focusing the question. The hot dog is a bland sausage, designed to use up "meat" that would otherwise be regarded as unsaleable. The meat contributes little or nothing to the taste and texture, it is ground so fine - but the sausage has definite taste and texture.

So there are two questions;

1) what IS the flavour of a hot dog? It is not unique, because companies across the world make them, but I can't give it any labels;

2) what agents do they use to make this finely ground mass of disparate ingredients cohere into a skinless sausage shape that stands up to being cooked without falling apart?

Answer 1

Now you made the edit, it is clearer to me what you ask. Here the answers to your two questions:

2) They don't need any agents. Protein acts as a glue when heated. Protein is almost the only food type which will actually "glue" things together - try making gluten-free pancakes with non-protein flour like almond flour and you will notice what I mean. (You can "cheat" and use hydrocolloids like xanthan which make a mass so viscous that it sticks together, but that's another topic). In other, rougher sausages, you can notice the difference between the lumps of stuff, because the lumps are bigger. Some rough sausages can also be likely to fall apart, but that is because they are not cooked, they are cured raw. Hot dog sausages are made from animal protein, animal fat, flavor agents (not too many), and fillers. The amount of meat is enough to cause the mass to curdle in a tight sausage, just like the proteins in the egg yolk are enough to cause a creme brulee to curdle in a holds-its-own-shape custard. You can cook your own sausages at home, and they will bind without any additives.

The cohesiveness of a hot dog can be achieved with a relatively low amount of meat when compared to the fat and the possible fillers (like bread). If a producer decides to use yet more fillers, he can use transglutaminase to get the tight texture even when there is less meat than normal in the sausage. I don't know whether producers actually do this or don't, I suspect that at least some do it. It is possible that in some jurisdictions, they are not allowed to.

1) As I already mentioned: the hot dog is made from meat, fat and a few fillers. It doesn't contain much seasoning. The meat used for it is low-quality meat, pure uniform protein from young animals, mostly pigs or chickens. And it is boiled, not exposed to direct high heat. Therefore, the aroma component of the flavor is almost completely missing. Other meats you eat have their own aroma, depending on the animal and developing with age (have you tried eating old goat?). They also get that lovely seared aroma from caramelization and Maillard reactions at temperatures which aren't achieved through boiling. Both are missing from a hot dog. (The second is missing from other sausages too, but good sausages such as cured salami or lukanka are made from aged beef or donkey, and they use generous additions of herbs and spices, often also smoke). You just get a faint aroma of uniform, underdeveloped protein.

The taste component of the flavor doesn't contain much either. There is salt from the seasoning, and there is some umami from the meat (but not much, this being young meat). Don't forget that while most people like umami, it is more known for enhancing the aroma of the food than for being a consciously pleasant flavor on itself the way sweetness is. Parmesan, tomatoes, meat - they are tasty because of the aroma they have, not just because of the umami per se. Pure MSG is very umami, but very disappointing if you try to eat it by itself. The fat in the sausage acts similarly as a flavor enhancer. Both the umami taste of pure protein and the fat would be great if they had something to enhance, but there isn't anything in the hot dog to be enhanced, so the flavor stays bland and uniform.

The veggie hot dog producers can use this well. Almost-pure soy protein is not that different from almost-pure chicken or pig protein where taste is concerned. The texture is different, but processing both to a fine paste with the right amount of moisture takes care of that. Neutral fat can be added for mouthfeel without changing the taste. In theory, the protein of the soy should be able to bind the sausage upon curdling. In practice, I suspect that the extraction process which purifies the soy protein from the bean-tasting plant matter curdles the protein and they use some kind of additives to "glue" the sausage afterwards. (At least the pure soy protein I have had as meat substitute was already curdled. Maybe there are other processes which don't require that).

So what is a hot dog sausage? Meat processed to the point where it is almost pure protein, fat processed to the point where it tastes neutral, salt. Some starch to improve texture. Everything cooked together in a sausage shape. Doesn't sound too appetizing, but it is cheap, filling, and the taste attack of mustard and ketchup is so strong, that any better sausage would be wasted in a hot dog sandwich.

Answer 2

klypos,

From what I recall (!), the filling of a meat hot dog sausage is typically soft, moist, homogeneous and without a particularly strong flavour, at least compared to other sausages. Rather bland-tasting, to some.

The Tesco brand sausages to which you refer is based on soy and wheat proteins http://www.mysupermarket.co.uk/#/tesco-price-comparison/frozen_vegetarian/tesco_vegetarian_hot_dog_sausages_10_per_pack_300g.html

In my opinion, most basic soy-based vegetarian sausages tend to mimic the texture and flavour of the filling in a budget meat hot dog sausage. Despite being a somewhat bland and uninteresting sausage (in my opinion!), they work well as a substitute for a meat sausage in a hot dog. Perhaps this is because the filling in a meat hot dog sausage tends to be highly processed see e.g. http://en.wikipedia.org/wiki/Mechanically_separated_poultry. As such, the rather homogeneous texture from a soy-based vegetarian sausage hits pretty close to the mark.

However, I do not know how the flavour of a vegetarian sausage is made to approximate the meat filling. I have been impressed at how close in taste a vegetarian substitute can be made to the meat it is aiming to replace. This is particularly true when the context of the meal is taken into account. Here is a thing that looks like a sausage inna bun (thanks Terry Pratchett!), slathered with tomato sauce and mustard. I bought it cheaply off a street vendor. I expect the sausage filling to be dubiously bland paste. Is it meat based or soy based? Not sure, can't really tell in context. Compare this with an attempt to replicate a high quality meat sausage with a vegetarian substitute.

Does this bring us close to an answer for you? Do you need meat in your sausage filling to call the bun-wrapped article a "hot dog"? I would argue that the amount of meat in a budget hot dog sausage is minimal and so cut down with fillers that the basic soy-based sausages make a good replacement.

Answer 3

A hot dog is by necessity a food that's meant to last indefinitely, be mass produced, and easy to prepare and consume. They bear little resemblance to real European sausages in ingredients, flavor, or production. They are packed with preservatives and fillers to make them shelf stable for extended periods of time and to reduce costs. While they are made to be familiar in sausage form, they are a radical departure from any -wurst made by skilled hands.

• The flavor of a hot dog is cow parts and salt and water with spices.
• Traditional recipes use cereal fillings and egg binders.

Understanding what makes a hot dog a hot dog means understanding its purpose; it should be a familiar, nutritive substitute for food that has a novel, comforting feel. They serve this purpose in MREs as well as at cook outs. For one to be vegetarian or kosher is neither difficult nor a deviation from that purpose.

Knowing what is in that generic tube is half the battle. You may actually have a decent hot dog, or one filled with purportedly carcinogenic nitrates.

From fooducate, Here is Hebrew National’s ingredient list:

Beef, Water, Contains 2% or Less of: Salt, Sodium Lactate, Spice, Hydrolyzed Soy Protein, Paprika, Sodium Diacetate, Garlic Powder, Sodium Erythorbate, Sodium Nitrite, Flavorings.

And Oscar Mayer Beef Franks ingredient list:

Beef, Water, Contains Less than 2% of Salt, Corn Syrup, Dextrose, Sodium Lactate, Sodium Phosphates, Sodium Diacetate, Ascorbic Acid (Vitamin C), Extractives of Paprika, Dried Garlic, Spice, Sodium Nitrite.