What Is Poaching?
Poaching is a moist-heat cooking technique where food is submerged in liquid and cooked at a low, gentle temperature — typically between 70°C and 82°C (160°F–180°F). The liquid is hot but not boiling. You’ll see wisps of steam and very occasional tiny bubbles, but nothing aggressive.
The name comes from the French pocher — to cook in liquid.
Poaching vs. Boiling vs. Simmering
| Method | Temperature | Appearance | Best For |
|---|---|---|---|
| Poaching | 70–82°C (160–180°F) | Wisps of steam, tiny bubbles | Delicate proteins: eggs, fish, chicken breast |
| Simmering | 85–96°C (185–205°F) | Steady small bubbles rising | Stocks, stews, tougher cuts |
| Boiling | 100°C (212°F) | Vigorous, rolling bubbles | Pasta, vegetables, eggs (hard-boiled) |
Why Poach? The Benefits of This Technique
- Preserves moisture: Delicate proteins cooked at low heat stay moist and tender. Boiling at high heat would tighten muscle fibres and make the same food rubbery.
- No added fat: Unlike frying or sautéing, poaching requires no oil or butter — making it a low-fat cooking method.
- Adds flavour: Poaching in stock, wine, or spiced water infuses the food with whatever is in the liquid.
- Gentle texture: Eggs cooked in poaching water hold together perfectly; the same egg dropped in boiling water would fall apart.
The Poaching Liquid
You can poach in many liquids, each adding different flavour:
- Water: Neutral. Used for poached eggs. Add a splash of white vinegar to help egg whites coagulate faster.
- Stock (chicken, vegetable, fish): Adds deep savoury flavour. Best for poaching chicken, fish, or vegetables.
- Court bouillon: A classic poaching liquid for fish — water with white wine, onion, carrot, celery, bay leaf, peppercorns, and lemon.
- Milk: Used for poaching fish (especially smoked fish) in European cuisines. Creates a creamy, mild flavour.
- Wine (red or white): Adds richness and colour. Red wine poaching is classic for pears and other fruit; white wine works for fish.
- Spiced syrup: Sugar + water + spices (cinnamon, cloves, star anise, vanilla). Used for poaching fruit — pears, peaches, figs.
How to Poach: Step-by-Step
Temperature Control: The Critical Factor
The single most important aspect of poaching is maintaining the correct temperature. Most home cooks either poach too hot (the food cooks unevenly and can fall apart) or too cold (the food takes too long and becomes waterlogged).
If you have a food thermometer: aim for 75–80°C. Without a thermometer: bring water to a simmer, then reduce heat until bubbles stop rising but steam remains.
How to Poach an Egg (Perfect Method)
- Fill a wide saucepan with 7–8 cm of water. Add 1 tbsp white vinegar (helps the white set faster).
- Bring to a bare simmer — wisps of steam, minimal bubbles.
- Crack an egg into a small cup or ramekin (not directly into the water).
- Stir the water gently to create a slow swirl.
- Slide the egg from the cup into the centre of the swirl.
- Cook for 3–4 minutes for a runny yolk, 4–5 minutes for a firmer yolk.
- Remove with a slotted spoon. Blot on paper towel and serve immediately.
Tip: Use fresh eggs — the whites are tighter and hold together better. Old eggs will shred in the water.
How to Poach Chicken Breast
- Place chicken breasts in a single layer in a wide pan.
- Add cold stock (or water with aromatics: onion, bay leaf, peppercorns, parsley) to cover by 2–3 cm.
- Bring to a gentle simmer over medium heat.
- Reduce heat to maintain 75–80°C. Cover partially.
- Cook for 15–18 minutes (for 150–200g breasts) until internal temperature reaches 74°C.
- Remove and rest for 5 minutes before slicing.
Poached chicken breast is the juiciest, most tender way to cook this cut. Shred it for salads, sandwiches, or biryani — it won’t be dry like oven-roasted.
How to Poach Fish
- Prepare court bouillon or use salted water with lemon slices.
- Heat to 80°C (not boiling).
- Gently lower fish fillets (salmon, cod, pomfret, sea bass) into the liquid.
- Cook for 8–12 minutes depending on thickness (a 2 cm thick fillet takes about 10 minutes).
- Fish is done when it flakes easily with a fork and the centre is opaque.
What Foods Can You Poach?
| Food | Liquid | Time |
|---|---|---|
| Eggs | Water + vinegar | 3–5 minutes |
| Chicken breast | Stock | 15–20 minutes |
| Fish fillet | Court bouillon / water | 8–12 minutes |
| Salmon | White wine + water | 10–15 minutes |
| Pears | Red wine + sugar + spices | 20–30 minutes |
| Peaches | Spiced syrup | 15–20 minutes |
| Lobster / prawns | Salted water / court bouillon | 3–6 minutes |
Poaching Tips
- Start with cold liquid and food together — this gives more even, gentle cooking
- Never boil — if the water starts bubbling vigorously, reduce heat immediately
- Use a wide, shallow pan for eggs so the liquid is deep enough but the pan is wide enough to not crowd
- Save the poaching liquid — it’s now a flavourful stock you can use for soup or sauce
- For large batch cooking, poach eggs ahead and store in cold water in the fridge for up to 2 days; reheat in hot (not boiling) water for 1 minute