Key Takeaways
1. Understanding the Science of Cooking Enhances Culinary Skills
The more fully we know our foods, the better we can choose them and cook with them.
Chemistry in the kitchen. Understanding the basic chemical composition of foods - water, proteins, carbohydrates, and fats - provides insights into how they behave during cooking. For example, proteins coagulate when heated, which is why eggs solidify and meats become firm. Carbohydrates absorb water and dissolve, explaining how starches thicken sauces and why vegetables soften when cooked.
Physics of cooking methods. Different cooking methods transfer heat in various ways:
- Conduction: Direct contact (e.g., pan-frying)
- Convection: Circulation of hot air or liquid (e.g., oven roasting, boiling)
- Radiation: Heat waves (e.g., broiling, microwaving)
Understanding these principles allows cooks to choose the best method for each ingredient and desired outcome. For instance, slow, moist cooking methods are ideal for tough cuts of meat to break down connective tissue, while quick, high-heat methods work best for tender cuts to preserve juiciness.
2. Prioritize Food Safety to Prevent Illness
Careless handling at any stage can contaminate them with various disease bacteria, including salmonella, listeria, and E. coli.
Proper food handling. Food safety begins with proper handling and storage. Keep raw meats separate from other foods to prevent cross-contamination. Store perishables at appropriate temperatures: below 40°F (4°C) for refrigerated items and 0°F (-18°C) for frozen foods. Always wash hands thoroughly before and after handling food, especially raw meats.
Safe cooking temperatures. Use a food thermometer to ensure foods reach safe internal temperatures:
- Poultry: 165°F (74°C)
- Ground meats: 160°F (71°C)
- Whole cuts of beef, pork, lamb: 145°F (63°C) with a 3-minute rest time
- Fish and shellfish: 145°F (63°C)
Remember the "danger zone" between 40°F and 140°F (4°C to 60°C) where bacteria multiply rapidly. Don't leave perishable foods out at room temperature for more than 2 hours (1 hour if the temperature is above 90°F/32°C).
3. Master the Art of Cooking Meats to Perfection
Searing meat does not seal in its juices, and moist cooking methods do not make meats moist. Juiciness depends almost entirely on how hot you cook the center of the meat.
Temperature control is key. The secret to juicy, tender meat lies in precise temperature control. Use a meat thermometer to monitor internal temperatures and remove the meat from heat when it reaches 5-10°F (3-6°C) below the desired final temperature, as it will continue cooking during resting.
Cooking methods for different cuts:
- Tender cuts (e.g., steaks, chops): High-heat methods like grilling or pan-searing
- Tough cuts (e.g., brisket, chuck): Slow, moist cooking methods like braising or stewing
Resting is crucial. Always let meat rest after cooking to allow juices to redistribute. The resting time should be about 5-10 minutes for small cuts and up to 20-30 minutes for large roasts. This step ensures maximum juiciness and easier carving.
4. Unlock the Potential of Vegetables and Herbs
Cooking generally softens vegetable texture, deepens flavor, increases the availability of some nutrients while reducing the levels of others, and eliminates microbes.
Cooking methods affect nutrition. Different cooking methods can enhance or diminish the nutritional value of vegetables. Steaming and microwaving generally preserve more nutrients than boiling, which can leach water-soluble vitamins into the cooking water. Roasting and grilling can enhance flavor through caramelization but may reduce some heat-sensitive nutrients.
Herb handling tips:
- Store herbs properly: Wrap in damp paper towels and refrigerate
- Add delicate herbs (e.g., basil, cilantro) at the end of cooking to preserve flavor
- Use hardy herbs (e.g., rosemary, thyme) earlier in the cooking process
Vegetable preparation techniques:
- Blanching: Briefly boil then plunge into ice water to preserve color and texture
- Shocking: Immerse in ice water after cooking to stop the cooking process
- Julienning: Cut into thin strips for quick cooking and attractive presentation
5. Elevate Your Cooking with Eggs and Dairy
Eggs are as common a food as we've got, but that's because they're also one of the most extraordinary.
Versatility of eggs. Eggs are culinary chameleons, serving multiple functions in cooking:
- Binding: Hold ingredients together in meatloaves and casseroles
- Leavening: Provide structure and lift in soufflés and cakes
- Emulsifying: Stabilize mixtures like mayonnaise and hollandaise sauce
- Glazing: Create a golden sheen on baked goods
- Thickening: Add body to custards and sauces
Dairy in cooking. Milk, cream, and cheese add richness, flavor, and texture to dishes:
- Milk: Adds moisture and helps bind ingredients
- Cream: Provides richness and can be whipped for aeration
- Cheese: Adds flavor, protein, and can be used as a thickener or topping
Temperature control for eggs and dairy. Proper temperature management is crucial:
- Eggs: Cook to 160°F (71°C) for safety, but lower temperatures (around 145°F/63°C) produce creamier textures in dishes like custards
- Dairy: Heat milk and cream gently to avoid curdling; use low temperatures when melting cheese to prevent separation
6. Explore the World of Grains, Legumes, and Breads
Grains and their legume-family relatives are main-course seeds, even more so than the grains. They can't make raised breads or chewy pastas the way grains do, but they're the heart of the meal in many parts of the world for people who don't have access to meat or choose not to eat it.
Cooking grains and legumes. Proper preparation is key to unlocking the nutritional value and flavor of grains and legumes:
- Soaking: Reduces cooking time and improves digestibility
- Cooking ratios: Generally 2 parts liquid to 1 part grain, but varies by type
- Cooking methods: Boiling, steaming, pressure cooking, or using a rice cooker
Bread-making basics:
- Ingredients: Flour, water, yeast, salt (and sometimes sugar, fat, or eggs)
- Kneading: Develops gluten for structure (can be replaced by long, slow fermentation)
- Rising: Allows yeast to produce CO2, creating a light texture
- Shaping: Determines final appearance and texture
- Baking: High heat sets structure and creates crust
Exploring variety. Experiment with different grains and legumes for diverse flavors and textures:
- Ancient grains: Quinoa, amaranth, millet, teff
- Whole grains: Brown rice, whole wheat, oats
- Legumes: Lentils, chickpeas, black beans, soybeans
7. Perfect the Craft of Pastry and Pie Making
Pastries offer the pleasures of dryness, the crisp and crumbly and flaky and browned.
Key principles of pastry making:
- Keep ingredients cold: Prevents fat from melting prematurely
- Minimal handling: Reduces gluten development for tender results
- Proper hydration: Balance of flour and liquid for ideal texture
Types of pastry:
- Flaky: Layers of dough separated by fat (e.g., pie crust, puff pastry)
- Shortcrust: Crumbly texture from fat worked into flour (e.g., tart shells)
- Choux: Light and airy from high moisture content (e.g., eclairs, cream puffs)
Pie-making tips:
- Blind baking: Pre-bake crust for wet fillings to prevent sogginess
- Thickeners: Use cornstarch, tapioca, or flour to set fruit fillings
- Egg wash: Brush crust with beaten egg for golden color
- Venting: Cut slits in top crust to allow steam to escape
Master these techniques, and you'll be able to create a wide range of delicious pastries and pies, from savory quiches to sweet fruit tarts and everything in between.
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Review Summary
Keys to Good Cooking receives mixed reviews. Many praise it as an invaluable reference for home cooks, offering scientific insights and practical tips to improve cooking skills. Readers appreciate the comprehensive coverage of ingredients, techniques, and kitchen tools. However, some find the writing dry and repetitive, noting that experienced cooks may not learn much new information. Critics argue the book lacks depth in certain areas and can be overwhelming. Despite these criticisms, most reviewers consider it a useful resource for understanding the science behind cooking and troubleshooting recipes.
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