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Topic 6 of 36

Sauces, soups and dairy

6 short explainers. Read them in order, or jump to the question you have right now.

  1. 37Simmer stock, don't boil itBones are full of collagen. Held at 85 to 95°C (185 to 205°F) for 4 to 6 hours for chicken, or 8 to 12 for beef, collagen melts into gelatin. That gelatin…
  2. 38Making a lump-free rouxA roux is flour cooked in fat, usually in equal weights. The fat coats the flour grains, so when liquid arrives they spread out instead of clumping. Then…
  3. 39Why dairy curdlesMilk's main protein, casein, floats as tiny clusters that repel each other. Acid or high heat strips away that protection, so the clusters clump. That's…
  4. 40Whip cream coldCream needs at least 30% fat to whip, and heavy cream has about 36%. Whipping makes the fat globules link into a net that traps air bubbles. That net only…
  5. 41Brown the tomato pasteStraight from the tube, paste tastes sharp and a bit metallic. Fry it in oil over medium heat for 2 to 3 minutes, until bright red turns brick red. The…
  6. 42Melt cheese gentlyCheese is a protein net holding fat and water. Most cheeses melt around 55 to 65°C (130 to 150°F). Past about 80°C (175°F) the net tightens, squeezes out…

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