What Is Coffee and How Can I Use It?

Instant coffee, also called soluble coffee,  and coffee powder, is a beverage derived from brewed coffee beans.

Instant coffee is commercially prepared by either freeze-drying or spray drying, after which it can be rehydrated. At least one brand of instant coffee is also available in concentrated liquid form.

Advantages of instant coffee include speed of preparation (instant coffee dissolves instantly in hot water), lower shipping weight and volume than beans or ground coffee (to prepare the same amount of beverage), and long shelf life—though instant coffee can also spoil if not kept dry.

Instant coffee is available in powder or granulated form contained in glass jars, sachets or tins. The user controls the strength of the resulting product, by adding more or less water (for a weaker or stronger brew).

Instant coffee is also convenient for preparing iced coffee like the Greek frappé, which is popular in warmer climates and hot seasons.

In some European countries such as Spain, instant coffee is commonly mixed with hot milk instead of boiling water.

Instant espresso powder is brewed espresso that has been dried into fine, dark, dissolvable granules. A small spoonful stirs straight into batter or frosting with no brewing and no added liquid.

It is darker and more concentrated than ordinary instant coffee, with a deep roasted flavor and far less of that bitter-sour edge. That concentration is the point: bakers use it less to make things taste like coffee and more to make chocolate taste more like chocolate.

A little goes a long way. One to two teaspoons is enough to flavor a whole cake or batch of brownies, so measure with a light hand.

Brewed espresso is coffee pulled under pressure: hot water forced through finely ground, tightly packed beans. The result is a small, intense shot with a layer of golden crema on top. A single shot is about 1 ounce (30 ml), roughly the amount most baking recipes mean by "espresso."

In the kitchen it earns its place less as a drink and more as a flavor concentrate. A spoonful deepens chocolate and rounds out caramel without making anything taste overtly of coffee.

That bittersweet backbone is why it turns up in tiramisu, mocha drinks, and dense chocolate cakes.

Whole coffee beans are roasted coffee seeds sold intact, before grinding. They are the same beans your morning cup comes from, but in the kitchen they earn their place two ways: ground fresh for the deepest flavor, or used whole to infuse and to garnish.

The flavor lives in volatile oils that start escaping the moment a bean is cracked. That is the single most important fact about them.

A whole bean holds its aroma for weeks, while ground coffee goes stale in days, which is why serious cooks and baristas grind right before they use it.

Roast level sets the character: a light roast is bright and acidic, a dark roast is bittersweet and smoky. For baking, a medium-to-dark roast usually reads as the rich coffee flavor people expect.