In the supermarket I saw a packet of cooking dark chocolate and a packet of dark chocolate slab. I want to ask are they same ? Is there any difference between ccoking dark chocolate and simple dark chocolate.
Chocolate – Is cooking dark chocolate and simple dark chocolate same
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Milk chocolate is unique in that it contains a significant quantity milk, either in the powdered, liquid, or condensed form.
Dark chocolate is a category of chocolate that includes semisweet and bittersweet chocolate. The US FDA actually does classify dark chocolate as anything containing 35% or more cacao (liquor or butter). In practice, semisweet chocolate is typically much sweeter, and contains about 50% sugar. Bittersweet chocolate, on the other hand, typically contains about 33% sugar. Some dark chocolates may contain small amounts of milk, but not enough to be called milk chocolate.
Short answer: yes, milk chocolate differs from chocolate by the milk its manufacture.
Real chocolate (as opposed to many other confections) is made from chocolate liquer, which despite the name, is not alchoholic, or even liquid at room temperature.
The fruit of the theobroma cacao tree contains seeds, known as beans. The harvested fruits are allowed to ferment, bringing many flavor and chemical changes to the beans, as well as removing the pulpy fruit. The beans are then husked for the seeds inside, the nibs.
The nibs are the first true chocolate product, although they are not sweet.
The nibs are roasted, and then ground. This is chocolate liquer, a solid colloid of cocoa fat and solid particles. It would be solid at room temperature, but the grinding process melts it.
The cocoa liquer can be pressed to separate out the cocoa butter (as for use in the cosmetics industry), leaving cocoa powder, but that is not the point of your question.
Instead, to manufacture chocolate, the liquer is conched, a mechanical process that makes the suspended particles much smaller, part of what gives chocolate its smooth mouthfeel.
Various products can be made from chocolate liquer, or cocoa butter, including:
- baking chocolate - essentially, just chocolate liquer, hardened and tempereded. May or may not be fully conched, so may not be as smooth as chocolate intended for eating.
- chocolate or dark chocolate - Chocolate liquer, possibly extra cocoa butter, and sugar. Minor optional ingredients often included are vanilla or other flavorings, and lecithen, an emulsifier.
- milk chocolate - Same as dark chocolate, with the addition of condensed milk or milk solids, depending on whether it is made via the Swiss method or the Hershey method
- white chocolate - cocoa butter, plus sugar and other flavorings
- chocolate chips - Another form of chocolate in a particular shape. Many manufacturers don't make these from true chocolate, but rather substitute another fat which doesn't melt as easily as cocoa butter, for economy, and so the chips hold their shape in the oven
- chocolate bunny - Chocolate molded into the shape of a bunny, then tempered and cooled
- German's chocolate - A brand name of quite sweet dark chocolate
Chocolate labels which list "cocoa percentage" are saying what proportion of the chocolate is cocoa liquer or additional cocoa butter or cocoa solids--that is, stuff from nibs, as opposed to sugar or other flavorings. The cocoa percentage for milk chocolate tends to be much lower than that of dark chocolates, although not every milk chocolate has a lower percentage than every dark chocolate.
See this question for information on tempering chocolate, which gives its snappy mouthfeel.
Edit: On dairy products in dark chocolate:
I was very surprised at Lemontwist's comment, so I did some googling and found this article at Go Dairy Free:
A good quality dark or semi-sweet chocolate will only have sweetener / sugar in some form added, and may also include a touch of soy lecithin as an emulsifier. These brands are milk-free by ingredients, but keep in mind that most brands of chocolate are made on shared equipment. That is, an inherently milk-free dark chocolate may be made on the same equipment as milk chocolate. See below for my note on cross-contamination issues.
The complications arrive as some brands of dark and semi-sweet chocolate do include milk ingredients for a “smoother” end result. This is particularly true in mainstream brands like Hershey’s. Some ways that you may see milk listed in the ingredients include milk solids, milk, milk powder, whey, butter oil or butterfat (see the Ask Alisa post on butter oil), or even casein. If milk is in the ingredients, it should be listed in a clearly identifiable manner per the labeling laws, but still, use caution.
This is still in line with the information I provided, as I did mention "other flavorings" in dark chocolate, and it is not a universal or even common practice as far as I know.
For people with strong allergies, the cross-contamination issue may be more of an issue.
Vegans would have more of an issue, as lecithen is a very common ingredient in chocolate of all types, and may be animal sourced. Vegans would specifically need to reseearch and obtain chocolates that meet that standard. Googling will find many such products, but I did not find an easy single reference list.
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Best Answer
In many cases, yes. The specific case would depend on what, exactly, the "simple dark chocolate" had for ingredients, and also what the baking chocolate had for ingredients.
Most (but definitely not all) chocolate sold as baking chocolate has no sugar at all in it. This is what most recipes expect, unless they specify one that does.
Most (but perhaps not all) "simple dark chocolate" sold for eating has sugar in it, even if it's a "high-percentage" dark chocolate bar.
They can be substituted, but you should adust for the amount of sugar (more chocolate, since the sugar in it means there's less chocolate in it than chocolate with no sugar, and reduce the sugar in the recipe.)