Cooking + food science

how long does…(93 answers)

• How long does sauerkraut take to ferment?

  Sauerkraut typically ferments at room temperature for 1–4 weeks. Most recipes: 2–3 weeks at 65°F (18°C) for full flavor, then refrigerate.

• How long does kombucha take to ferment?

  Kombucha first fermentation typically takes 7–14 days at room temperature (70–75°F / 21–24°C).

• How long does yogurt take to ferment?

  Yogurt typically takes 4–8 hours at 110°F (43°C) to ferment.

• How long does kefir take to ferment?

  Milk kefir ferments in 12–24 hours at room temperature (65–75°F / 18–24°C). Water kefir takes 24–48 hours.

• How long does a hard-boiled egg take?

  Hard-boiled eggs need 9–12 minutes total.

• How long does puff pastry need to chill?

  Puff pastry chills 20–30 minutes between each fold (4–6 folds total), plus 1–2 hours final rest.

• How long does brioche dough need to proof?

  Brioche proofs in 4 stages: 1–2 hour bulk → overnight cold ferment (8–24 hours fridge) → 1–2 hour final shaping rest…

• How long does pâte sucrée need to rest?

  Pâte sucrée (sweet tart dough) needs 30 minutes minimum rest in the fridge before rolling, plus 30 more after fitting into the tart shell.

• How long does natto take to ferment?

  Natto ferments 22–28 hours at 100–104°F (38–40°C), followed by 24+ hours aging in the fridge.

• How long does drip coffee take to brew?

  Standard drip coffee machines brew 4–6 minutes for a 10-cup carafe (~50 oz). Per-cup time: ~30 seconds.

• How long does cheese take to age?

  Cheese aging ranges from 1 week (fresh cheese like ricotta) to 4+ years (parmigiano-reggiano stravecchio).

• How long does cultured butter take to make?

  Cultured butter takes 12–48 hours total: 12–24 hours culturing cream + 10–30 minutes churning + 30 min washing.

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what ratio of…(27 answers)

• What is the right hydration ratio for sourdough bread?

  Standard sourdough hydration is 70–80% (water-to-flour weight). Beginners: 65–70% (easier to handle). Open-crumb artisan: 75–85%.

• What is the right ratio of fat to flour for a roux?

  Classic roux is 1:1 fat-to-flour by WEIGHT (not volume). 1 oz butter + 1 oz flour = 2 oz roux thickens ~1 quart liquid.

• What is the right ratio of starter to milk for yogurt?

  Standard yogurt starter ratio is 2 tablespoons (30g) of active yogurt per quart (1 liter) of milk — about 3% by weight.

• What is the right water to rice ratio?

  Standard white rice: 1:2 ratio (1 cup rice + 2 cups water). Long-grain (jasmine, basmati): 1:1.5 to 1:2.

• What is the ratio of salt to meat for dry brining?

  Standard chef ratio: 1% salt by meat weight (López-Alt). Kosher salt (Diamond Crystal): 1 tsp per pound. Morton kosher: 3/4 tsp per pound.

• What is the right salt percentage for a brine?

  Brine salt percentages vary by application: 5–6% for wet-brining meat · 2–4% for pickling vegetables · 2.5% for fermenting kraut/kimchi…

• What is the basic flour to water ratio for bread?

  Standard yeasted bread is ~5:3 flour to water by weight (60-65% hydration). Lean bread (no oil/eggs): 65-70% hydration.

• What is the ratio of yeast to flour in bread?

  Standard ratio: 1% yeast by flour weight (bakers percent). For 500g flour: 5g instant yeast (~1.5 tsp) or 6g active dry.

• What is the ratio of water to flour for bread?

  Standard sandwich bread: 65% hydration (65g water per 100g flour). Most artisan loaves: 70-75%. Ciabatta + high-hydration breads: 80-85%.

• What ratio of salt to sugar for gravlax cure?

  Classic gravlax: 1:1 ratio salt:sugar by weight.

• What ratio of salt for olive brine?

  For brined olives: 10% salt brine by weight. Per 1 L water = 100g salt.

• What is baker's percentage and how do I use it?

  Baker's percentage: flour = 100%, everything else as percentage of flour weight.

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what substitute for…(25 answers)

• What can I substitute for sweetened condensed milk?

  Best DIY: reduce 1 cup evaporated milk + 1 cup sugar at low heat ~15 min.

• What is a gluten-free substitute for soy sauce?

  Best 1:1 substitutes: tamari (Japanese soy sauce, naturally GF), coconut aminos (sweeter + lower sodium), liquid aminos (Bragg).

• What can I substitute for sour cream?

  Best 1:1 subs: full-fat Greek yogurt (most common, identical tang). Plain whole-milk yogurt (slightly thinner).

• What can I substitute for evaporated milk?

  Best DIY 1:1: simmer 2 1/4 cups whole milk down to 1 cup (25-30 min, low heat). Or use 1 cup half-and-half straight (richer).

• What can I substitute for baking powder?

  For 1 tsp baking powder, use 1/4 tsp baking soda + 1/2 tsp cream of tartar + 1/4 tsp cornstarch.

• What can I substitute for baking soda?

  For 1 tsp baking soda, use 3 tsp (1 tbsp) baking powder — but you may need to reduce other acidic ingredients.

• What dairy-free milk substitutes work best for baking?

  Best 1:1 substitutes: oat milk (closest texture), soy milk (highest protein), unsweetened almond milk (neutral).

• What vegan cheese works best for cooking?

  Best vegan cheeses for cooking: Cashew-based (creamy, melts well) for sauces. Coconut-oil-based (Daiya, Violife) for pizza melting.

• What can I substitute for pine nuts in pesto?

  Best 1:1 substitutes for pine nuts in pesto: sunflower seeds (closest texture), pumpkin seeds (pepita - nuttier), or hemp seeds (creamy).

• What can you substitute for cashew cream?

  Best cashew-cream substitutes (vegan): silken tofu blended smooth (1:1 ratio) · soaked sunflower seeds + lemon juice (nut-free)…

• What can I substitute for buttermilk?

  Best DIY 1:1: 1 cup milk + 1 Tbsp lemon juice or white vinegar, rest 5-10 min until curdled.

• What can I substitute for brown sugar?

  For 1 cup brown sugar, mix 1 cup white sugar + 1 tbsp molasses (light) or 2 tbsp molasses (dark).

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how to convert…(23 answers)

• How do I convert tablespoons to grams?

  Varies by ingredient. Water: 1 Tbsp = 15g. Butter: 14g. Sugar: 12g. Brown sugar (packed): 13g. Flour: 8g. Honey/syrup: 21g.

• How do I convert teaspoons to grams?

  Varies by ingredient. Water: 1 tsp = 5g. Table salt: 6g. Diamond Crystal kosher salt: 3g. Sugar: 4g. Flour: 2.5g. Baking soda: 4.6g.

• How do I convert cups to grams for flour?

  1 cup all-purpose flour = 120 grams (King Arthur standard). Bread: 120g. Whole wheat: 113g. Cake: 114g. Almond: 96g. Coconut: 130g.

• How do I convert cups to grams?

  Cups-to-grams conversion depends entirely on the ingredient — there's no universal rate. Water/milk: 1 cup = 240g.

• How do I convert milliliters to cups?

  US: 1 cup = 240 mL. Metric cup: 250 mL. Quick: 60 mL = 1/4 cup · 120 mL = 1/2 cup · 240 mL = 1 cup · 480 mL = 2 cups · 1 L = 4.2 cups.

• How do I convert fahrenheit to celsius?

  Exact: °C = (°F − 32) × 5/9. Quick approx: subtract 30 then halve (°C ≈ (°F − 30) ÷ 2).

• How many cups is a stick of butter?

  1 US butter stick = 1/2 cup = 8 Tbsp = 4 oz = 113g. 2 sticks = 1 cup = 1/2 lb = 227g. 4 sticks = 1 lb = 454g.

• How do I convert celsius to fahrenheit?

  Exact: °F = (°C × 9/5) + 32, or °F = °C × 1.8 + 32. Quick mental math: double °C then add 30 — accurate within ~2°F.

• How many tablespoons in a cup?

  1 US cup = 16 tablespoons (tbsp). 1 tbsp = 3 teaspoons (tsp). 1/4 cup = 4 tbsp, 1/2 cup = 8 tbsp, 3/4 cup = 12 tbsp.

• How do I convert milliliters to tablespoons?

  1 tablespoon (US) = 14.79 mL ≈ 15 mL. 1 mL = 0.0676 tbsp. Quick math: divide mL by 15 to get tablespoons.

• How many cups in a given gram weight of flour?

  All-purpose flour: 120 g ≈ 1 cup (spooned + leveled). 240 g ≈ 2 cups. 60 g ≈ 1/2 cup. For bread flour: 127 g ≈ 1 cup (slightly heavier).

• What is the Fahrenheit equivalent of UK gas mark?

  Gas Mark 4 = 350°F (180°C). Each gas-mark step = 25°F. Gas Mark 1 = 275°F, GM 3 = 325°F, GM 5 = 375°F, GM 7 = 425°F, GM 9 = 475°F.

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what temperature for…(27 answers)

• What temperature should the pan be to sear a steak?

  Cast iron at 500-550°F (260-288°C) for proper Maillard reaction. Stainless steel: 450-500°F (232-260°C).

• What internal temperature for brisket?

  Brisket is done at 203°F (95°C) internal — but the "probe test" is more reliable than the number.

• What temperature should pork be cooked to?

  USDA pork minimum: 145°F (63°C) + 3 min rest.

• What temperature should a grill be for steak?

  High-heat searing zone: 450-550°F (230-290°C) direct heat for crust. Medium zone: 350-400°F (175-205°C) for finishing thick cuts.

• What temperature should oil be for deep frying?

  Standard deep-fry: 350-375°F (175-190°C). French fries: 325°F blanch then 375°F finish. Chicken: 350°F (large pieces) to 375°F.

• What temperature should water be for poaching eggs?

  Water at 180-190°F (82-88°C) — barely simmering, NEVER boiling.

• What internal temperature for chicken?

  USDA mandatory: 165°F (74°C) for all poultry, at the thickest thigh part (not breast). Dark meat is better above 175°F (79°C).

• What temperature for soft-boiled eggs?

  Rolling boil at 212°F (100°C). Times from boiling: 4-5 min runny yolk · 6-7 min set white runny yolk · 8 min jammy yolk · 9-10 min just-set.

• What temperature for sous vide pork tenderloin?

  Sous vide pork tenderloin at 140°F (60°C) for 1-4 hours = slightly pink, juicy. Most popular: 140°F for 2 hours.

• What is the safe internal temperature for pork loin?

  USDA-safe: 145°F (63°C) with 3-min rest (lowered from 160°F in 2011).

• What is the safe internal temperature for ground beef?

  USDA-safe: 160°F (71°C) internal — this is non-negotiable for ground beef.

• What temperature for baking bread?

  Most yeast bread: 425-450°F (220-230°C) for first 10 min, drop to 400°F (200°C) for remainder.

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what is the difference between…(6 answers)

• What is the difference between brown sugar and white sugar?

  Brown sugar = white sugar + molasses (3.5% light, 6.5% dark).

• What is the difference between baking soda and baking powder?

  Baking soda = pure alkali (sodium bicarbonate). Needs acidic ingredient (buttermilk, lemon, vinegar, brown sugar, cocoa) to activate.

• What is the difference between tamari and soy sauce?

  Tamari = Japanese soy sauce made from soybeans (no wheat). Soy sauce = Chinese-Japanese style made from soybeans + wheat.

• What is the difference between sourdough and yeast bread?

  Sourdough uses wild yeast + lactobacillus from a fermented starter (slow rise, tangy, complex flavor, longer-keeping).

• What is the difference between kahm yeast and mold?

  Kahm yeast is a flat, white, wrinkly film that is harmless — skim it and carry on.

• What is the difference between butter and margarine?

  Butter = made from cream (animal fat, dairy). Margarine = made from vegetable oils (plant fat, processed).

what is…(6 answers)

• What is autolyse in bread baking?

  Autolyse is a 20-60 minute rest of flour + water (only) before adding salt or yeast.

• What is umami?

  Umami is the fifth basic taste — the savory, meaty, deeply satisfying flavor from glutamate amino acid.

• What is the Maillard reaction?

  The Maillard reaction is a chemical reaction between amino acids + reducing sugars in food, accelerated by heat (250-350°F+).

• What is gluten development?

  Gluten development is the formation of an elastic protein network from wheat flour proteins (gliadin + glutenin) when mixed with water.

• What is pasteurization?

  Pasteurization is a heat treatment that kills pathogenic bacteria, yeasts, and molds in food + beverages while preserving flavor + texture.

• What is cloudy brine in a fermentation jar?

  Cloudy brine is normally a sign the ferment is working — it is suspended lactic-acid bacteria plus starch and cellular material released by…