Make-up and Shaping
Red Seal Practice study guide with diagrams.
Shaping and Moulding
Introduction to Shaping
Shaping, or moulding, is the stage that transforms a fermented dough into a recognizable final product. For the Red Seal exam, you must master not only the technical gestures but also the physical and chemical principles that govern each operation. Incorrect shaping is the most frequent cause of volume, texture, and crust defects in bakery products.
Shaping has three main objectives:
Fundamental Principles of Shaping
Degassing and Its Importance
Before any shaping, the dough must be degassed (punched down). This operation consists of expelling the CO₂ produced by fermentation. It is essential for:
> Golden Rule: Dough that is too gassy at shaping produces a coarse crumb and insufficient volume. Degassing must be firm but without tearing the dough.
Surface Tension
Surface tension is the force that maintains the shape of a dough piece. It is created by the gluten that aligns during shaping. Adequate tension allows:
Tension is measured by resistance to touch: a properly tensioned dough piece is smooth, elastic, and springs back slightly under the finger. Excessive tension tears the dough; insufficient tension produces a flat, spread-out product.
The Role of Bench Flour
The flour used for shaping (bench flour) must be used sparingly. An excess of dry flour:
Rice flour is sometimes used for very sticky doughs (high-hydration doughs). It does not develop gluten and burns less quickly.
Dividing Techniques
Manual Dividing
Manual dividing is done with a bench scraper (dough cutter). It is used for very hydrated doughs or small productions. Precision is lower (±5%), but the dough structure is less damaged.
Procedure:
Hydraulic Divider
The hydraulic divider is the standard in production. It operates by piston and compression chamber. The dough is drawn into a calibrated chamber, then pushed out by a piston.
Critical points:
Precision: ±1 to 2% for properly adjusted hydraulic dividers.
Volumetric Divider
The volumetric divider (auger or rotary piston type) is used for firm doughs (baguette doughs, pizza doughs). It operates by extrusion and wire cutting.
Advantages: high speed, consistent precision.
Disadvantages: significant degassing, dough heating (friction).
> Essential calculation: For a production run of 240 baguettes at 350 g, with a 3% loss (dough stuck to the walls), the total mass of dough required is:
> 240 × 350 g = 84,000 g
> 84,000 g ÷ 0.97 = 86,597 g (approximately 86.6 kg)
Pre-Shaping (Rounding)
Pre-shaping is the first forming step. It creates a ball that will facilitate the final shaping. It has three functions:
Hand Rounding Technique
Mechanical Rounding
The rounder (ball former) operates with an inclined conveyor belt and conical rollers. The dough is rolled between the belt and a fixed roller, creating tension.
Adjustments:
Rest Period (Intermediate Proof)
After rounding, the dough pieces must rest for 10 to 20 minutes. This period is crucial:
> Trap to avoid: An intermediate proof that is too short makes final shaping difficult (the dough resists and tears). A proof that is too long produces flat dough pieces that are difficult to tension.
The Main Shapes
The Baguette
Shaping procedure:
Standard dimensions:
| Type | Length | Weight | Scoring |
|---|---|---|---|
| Traditional baguette | 65–70 cm | 250–300 g | 5 to 7 slashes |
| Parisian baguette | 60–65 cm | 250 g | 5 slashes |
| Flute | 70–80 cm | 350–400 g | 7 slashes |
| Batard | 40–50 cm | 400–500 g | 3 to 5 slashes |
Country Bread (Boule)
Final ball shaping is similar to rounding, but with stronger tension. The ball is then placed sealed side up in a floured banneton (proofing basket).
Bannetons: Rattan bannetons leave characteristic marks. They must be generously floured (rice flour or rye flour) to prevent sticking.
Pan Bread (Loaf Bread)
Pan bread is shaped into a cylinder:
Pan filling: The dough should fill the pan to 50–60% of its height before the final proof. After proofing, it should reach 80–90% before baking.
Rye Bread
Rye doughs (low in gluten) require delicate and quick shaping. Rye gluten is more fragile and tears easily. The following is preferred:
Viennoiseries (Croissants and Pain au Chocolat)
Viennoiseries are shaped after laminating (tourage). The leavened puff pastry is rolled to a thickness of 3–4 mm, then cut.
Croissant:
Pain au chocolat:
> Critical temperature: Viennoiseries must be shaped at 15–18 °C. Above 20 °C, the butter softens and the layers blend together.
Final Proof (Proofing)
Final proof is the last fermentation before baking. It takes place in a proofing cabinet (fermentation chamber) at controlled temperature and humidity.
Standard Conditions
| Parameter | Optimal Value | Effect if Incorrect |
|---|---|---|
| Temperature | 28–32 °C | Too hot: acidic taste, dough collapses |
| Relative humidity | 75–85% | Too dry: thick crust, no development |
| Duration | 60–90 min (variable) | Too long: collapse, irregular crumb |
End-of-Proof Criteria
The dough piece is ready to bake when:
The Finger Test
This test is essential for the exam:
Scoring (Slashing)
Scoring is the incision of the dough surface before baking. It has several functions:
Types of Scoring
| Product | Type of Slash | Angle | Depth |
|---|---|---|---|
| Baguette | 5–7 oblique slashes | 30–45° | 5–8 mm |
| Batard | 3–5 longitudinal slashes | 20–30° | 5–8 mm |
| Boule | Cross or square | 90° | 10–15 mm |
| Rye bread | 1 deep central slash | 90° | 15–20 mm |
Scoring Techniques
The lame (scoring blade) must be:
Common errors:
> Exam tip: Scoring should be done just before loading the oven. If the dough surface has already started to dry, the blade will slide and the slash will be superficial.
Calculating Losses and Quantities
Basic Formula
To calculate the amount of dough required:
Total dough mass = (Number of pieces × Unit weight) ÷ (1 – Loss rate)
The loss rate includes:
Complete Calculation Example
Problem: You need to produce 150 baguettes at 300 g. The loss rate is estimated at 4%. How much dough must you prepare?
Solution:
Calculating the Number of Pieces
Problem: You have 25 kg of dough and each loaf must weigh 400 g. How many loaves can you produce?
Solution:
Shaping Defects and Their Causes
| Observed Defect | Probable Cause | Correction |
|---|---|---|
| Flat dough pieces after shaping | Insufficient tension | Increase rounding pressure |
| Surface tears | Dough too dry or intermediate proof too short | Moisten, extend the rest period |
| Slashes that close up | Blade too dull or angle too vertical | Sharpen, reduce the angle |
| Crust with white spots | Excess bench flour | Reduce flour, use rice flour |
| Sticky and dense crumb | Dough too hydrated or shaping too aggressive | Reduce hydration, shape more delicately |
| Insufficient volume | Final proof too short | Extend the proof |
| Collapse when loading the oven | Excessive proof | Bake earlier |
| Irregular crumb | Insufficient degassing | Degas more firmly during shaping |
Canadian Standards and Best Practices
Canadian Electrical Code, Part I
Shaping equipment (dividers, rounders, conveyor belts) are electrical machines. The Canadian Electrical Code, Part I (CSA C22.1 standard) applies to their installation. Relevant rules include:
> Exam note: You do not need to know the details of electrical installation, but you must know that equipment must comply with the Code and that any electrical modification must be performed by a qualified electrician.
CSA B149.1 (Natural Gas and Propane Code)
Gas-fired bakery ovens must comply with the CSA B149.1 standard. Relevant points for the baker:
Food Safety Best Practices
Traps to Avoid
Summary
Shaping is a decisive stage in the quality of the final product. The essential points to remember:
For the Red Seal exam, practice:
Mastery of shaping is a strong indicator of professional competence — examiners know this, and questions on this topic are frequent and detailed.
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