ACF CPC key terms

The elastic network formed when wheat flour proteins glutenin and gliadin are hydrated and worked. It traps gases during baking, giving structure and chew to breads and pastries.

A mixing technique that beats fat, usually butter, with sugar until pale and fluffy, incorporating air before eggs and dry ingredients are added. It produces tender, evenly textured cakes and cookies.

The process of incorporating air into a mixture by whipping, creaming, or sifting. Air bubbles expand in the oven and act as a leavening force, lightening texture in sponges, meringues, and batters.

A stable mixture of two liquids that normally separate, such as fat and water, held together by an emulsifier and mechanical agitation. Mayonnaise, custards, and ganache depend on it.

Browning that occurs when amino acids and reducing sugars react under heat, producing complex flavors and darker color. It is responsible for the crust on bread and the sear on baked goods.

The thermal breakdown of sugar when heated above its melting point, creating brown color and toasty, bitter notes. Unlike the Maillard reaction, it requires no protein.

Any substance or process that introduces gas into a dough or batter, causing it to rise. Examples include baking soda, baking powder, yeast, steam, and air trapped by whipping.

A formula method in which flour weight is always 100 percent and every other ingredient is expressed as a percentage of that flour weight. It allows bakers to scale recipes precisely and adjust hydration.

The ratio of water or liquid to flour in a dough, stated as a percentage of the flour weight. Higher hydration produces a more open crumb and a stickier dough.

A resting period after flour and water are combined but before yeast and salt are added. It allows enzymes to hydrate the flour and begin developing gluten, improving extensibility and reducing mixing time.

A portion of dough or a flour-and-water mixture fermented ahead of the final mix to build flavor and strength. Poolish and biga are common types used in bread production.

The first rising period after dough is mixed, during which yeast produces gas and dough develops flavor, strength, and structure. Bakers often fold the dough during this stage.

The final rise of shaped dough before baking, usually in a warm, humid environment. Proper proof is judged by the dough's springiness and size, not by time alone.

Cutting shallow slashes into the surface of proofed dough before baking. Scoring controls where the loaf expands, prevents irregular tearing, and creates decorative patterns.

The process of folding dough and a fat layer together repeatedly to create many thin alternating layers. During baking, steam separates the layers, producing flaky croissants and puff pastry.

A mixture of flour and water colonized by wild yeast and lactic acid bacteria, used to leaven bread and add tang. It must be fed regularly to stay active.

A gluten-development check in which a small piece of dough is stretched until thin enough to let light through without tearing. Passing indicates adequate strength for shaping.

A cooked dough of water, butter, flour, and eggs piped and baked to make cream puffs, éclairs, and gougères. Steam expands it, and its hollow interior is filled after baking.

A stirred custard of milk, sugar, and egg yolks cooked gently until it thickens enough to coat a spoon. It serves as a sauce and as the base for ice cream and buttercreams.

A thick pastry cream made by cooking milk, sugar, egg yolks, and starch until it boils. It is used to fill éclairs, tarts, and other pastries and must be cooled properly.

A smooth mixture of chocolate and warm cream, sometimes with butter, used as a glaze, filling, or frosting. The ratio of chocolate to cream determines its final consistency.

Controlled heating and cooling of chocolate to stabilize its cocoa butter crystals so it sets glossy and snaps. Poorly tempered chocolate looks streaky and feels soft.

A foam made by whipping egg whites with sugar, used for toppings, cookies, and mousse bases. French, Italian, and Swiss styles differ in how the sugar is incorporated.

Named stages such as soft ball, firm ball, and hard crack that describe sugar syrup as it cooks and its concentration rises. They correspond to specific temperatures and finished textures.

The arrangement and presentation of a dessert on the plate, including portion, height, color, sauce, and garnish. Good plating is balanced, neat, and easy to eat.

The temperature range, roughly 41°F to 135°F (5°C to 57°C), in which bacteria multiply rapidly. Perishable foods should be kept out of this range as much as possible.

The transfer of harmful microorganisms or allergens from one food, surface, or utensil to another. It is prevented by separating raw and ready-to-eat items and cleaning thoroughly.

First in, first out: a stock rotation practice that uses the oldest delivered products before newer ones. It reduces waste and helps prevent expired ingredients from being used.

A systematic food safety plan that identifies hazards, sets critical control points, and establishes monitoring and corrective actions. It focuses on prevention rather than finished-product testing.

Checking and adjusting a thermometer against a known reference, such as ice water or boiling water, so readings are accurate. Regular calibration is essential for safe cooking and cooling.

The usable amount of a food after trimming, cooking, or processing, compared with its purchased weight. Yield percentages are used to calculate true portion cost and recipe quantities.

The cost of food used in a period divided by food sales in the same period, expressed as a percentage. It is a key measure of menu profitability and control.

A written formula that specifies exact ingredient quantities, procedures, yield, portion size, and equipment so a dish turns out consistently regardless of who prepares it.

The organized preparation of ingredients, tools, and workstations before service begins. It supports speed, consistency, and safety during a busy production period.

A written plan that lists tasks, quantities, and timing needed to complete production before service. It helps a supervisor assign work and track completion.

Total labor expense, including wages, taxes, and benefits, divided by total sales for the same period. Supervisors use it to balance staffing against revenue.

A substance, usually a protein, that triggers an immune reaction in sensitive individuals. In pastry kitchens, nuts, dairy, eggs, wheat, and soy are common allergens that require separation and labeling.