Mondo Knows Facts
100 Food Facts, Each One Checked and Sourced
Ingredients, cooking, drink and where our food comes from.
100 facts on this shelf, each with a named source and a link onward to something to play or use on the same theme.
100 facts in Food
FoodBrowning food is a chemical reactionThe Maillard reaction between sugars and amino acids creates complex flavours and rich coloursFoodCaramelisation breaks down sugars through heatThermal decomposition of sugar molecules produces rich golden colours and complex nutty flavoursFoodCrushing garlic creates its sharp pungent aromaDamaging garlic cells allows enzymes to convert alliin into volatile allicinFoodOnions produce a volatile chemical that induces tearsChopping onions releases a gas that reacts with eye moisture to form mild acidFoodKneading dough develops a stretchy gluten networkHydrating wheat proteins allows gliadin and glutenin to link into elastic doughFoodSourdough relies on wild yeast and lactic acid bacteriaLactobacilli sour the dough while wild yeasts generate carbon dioxide bubblesFoodTempering chocolate aligns cocoa butter crystalsControlled cooling ensures chocolate sets with a glossy finish and crisp snapFoodDutch processing reduces acidity in cocoa powderTreating cocoa beans with alkaline solution darkens colour and mellows flavourFoodHeat untangles proteins in egg whites to form a solid gelWarming denatures translucent ovalbumin proteins until they bond into a firm white meshFoodEgg yolk lecithin stabilises oil and water mixturesPhospholipids in egg yolk prevent oil and vinegar from separating in saucesFoodMayonnaise is an emulsion of oil suspended in waterWhisking oil slowly into egg yolk creates a thick viscous suspension of fat dropletsFoodHoney resists microbial growth through low water contentHigh sugar concentration and natural acidity prevent bacteria from surviving in honeyFoodCapsaicin tricks sensory receptors into feeling heatChili pepper compounds activate pain receptors that normally detect physical burningFoodSalt preserves food by drawing out water via osmosisDehydrating muscle tissues deprives bacteria of the liquid required for survivalFoodPressurised water creates coffee crema foamHigh brewing pressure forces dissolved carbon dioxide into an emulsion of coffee oilsFoodLeaf oxidation levels define major tea categoriesBlack green and oolong teas come from the same plant species processed differentlyFoodNatural vanilla requires individual hand pollinationEvery vanilla orchid blossom must be manually fertilized within hours of openingFoodSaffron is collected from delicate crocus flower stigmasThousands of crimson stigmas must be individually plucked to produce a single ounceFoodRennet enzymes curdle milk proteins into firm cheeseChymosin cleaves kappa-casein to allow milk solids to aggregate into solid curdsFoodChurning cream causes a milk fat phase inversionVigorous shaking transforms an oil in water emulsion into a water in fat emulsionFoodSimmering butter removes water to produce gheeEvaporating moisture and browning milk solids extends shelf life and adds aromaFoodRapid freezing creates smooth ice cream textureForming tiny ice crystals prevents a grainy texture in frozen dairy productsFoodLactic acid bacteria transform milk into yoghurtBacterial fermentation lowers pH to coagulate milk proteins into a thick gelFoodYeast converts sugars into carbon dioxide gasSaccharomyces cerevisiae consumes simple sugars to produce alcohol and carbon dioxide
All 100 Food facts
- Browning food is a chemical reaction
- Caramelisation breaks down sugars through heat
- Crushing garlic creates its sharp pungent aroma
- Onions produce a volatile chemical that induces tears
- Kneading dough develops a stretchy gluten network
- Sourdough relies on wild yeast and lactic acid bacteria
- Tempering chocolate aligns cocoa butter crystals
- Dutch processing reduces acidity in cocoa powder
- Heat untangles proteins in egg whites to form a solid gel
- Egg yolk lecithin stabilises oil and water mixtures
- Mayonnaise is an emulsion of oil suspended in water
- Honey resists microbial growth through low water content
- Capsaicin tricks sensory receptors into feeling heat
- Salt preserves food by drawing out water via osmosis
- Pressurised water creates coffee crema foam
- Leaf oxidation levels define major tea categories
- Natural vanilla requires individual hand pollination
- Saffron is collected from delicate crocus flower stigmas
- Rennet enzymes curdle milk proteins into firm cheese
- Churning cream causes a milk fat phase inversion
- Simmering butter removes water to produce ghee
- Rapid freezing creates smooth ice cream texture
- Lactic acid bacteria transform milk into yoghurt
- Yeast converts sugars into carbon dioxide gas
- Baker percentages express ingredients relative to flour
- Resting flour and water improves dough elasticity
- Sous-vide cooking uses precise temperature control
- Escalating steam prevents oil penetration during frying
- Brief boiling inactivates enzymes that degrade vegetables
- Brunoise and julienne define standardized culinary knife cuts
- Liquid dissolves caramelized pan drippings into rich sauces
- French cuisine builds complex sauces from five mother bases
- Cooking flour in fat creates a roux thickening base
- Simmering animal connective tissue yields liquid gelatine
- Searing meat enhances flavour rather than trapping moisture
- Resting meat allows muscle fibres to reabsorb juices
- Soy sauce relies on fungal koji and brine fermentation
- Fermenting soybeans with koji creates savoury miso paste
- Lacto-fermentation preserves seasoned cabbage in kimchi
- Salt and anaerobic bacteria ferment cabbage into sauerkraut
- Acetobacter species turn ethanol into pungent vinegar
- Pasteurisation heats liquids to eliminate harmful microbes
- High thermal processing destroys heat-resistant spores in canning
- Wood smoke coats meat in antimicrobial phenolic compounds
- Mechanical extraction preserves fresh olive oil flavour
- High temperatures degrade cooking oils past their smoke point
- Partial hydrogenation hardens liquid oils into solid fats
- Starch ratio determines whether cooked rice is fluffy or sticky
- Steaming unhusked rice drives nutrients into the grain
- High protein semolina gives pasta its firm structure
- Eggshell colour depends on the hen, not the yolk
- A double yolk comes from two ovulations close together
- Older eggs are easier to peel
- A green potato has been making chlorophyll and solanine
- Waxy potatoes hold their shape and floury ones crumble
- Cooling cooked potatoes changes their starch
- Beans contain sugars people cannot digest
- Soaking beans before cooking saves fuel and time
- Risotto creaminess comes from surface starch
- Bread goes stale because its starch re-crystallises
- Scoring a loaf controls where it bursts
- Steam in the oven keeps a crust thin while the loaf rises
- Baking soda needs an acid and baking powder brings its own
- Gluten-free baking leans on gums and starches
- Nixtamalisation treats corn with lime before grinding
- Ramen noodles are made with alkaline salts
- Rice noodles contain no wheat at all
- A croissant is built from folded layers of dough and butter
- Phyllo pastry is stretched rather than rolled
- Puff pastry rises on its own steam
- Bronze dies give pasta a rough surface that holds sauce
- Good gnocchi depends on dry potato and little flour
- The Scoville scale ranks chillies by capsaicin
- Black, green and white peppercorns are the same fruit
- Mustard only becomes hot once it meets cold water
- Horseradish loses its bite in hot liquid
- Toasting whole spices releases their aromatic oils
- Most supermarket cinnamon is cassia, not Ceylon
- Paprika colour comes from carotenoid pigments
- Mushrooms brown only after their water boils off
- Canned tomatoes are already cooked, which changes them
- Citrus aroma sits in the coloured peel, bitterness in the pith
- Garlic can turn blue-green in acid
- Honey crystallises when its glucose comes out of solution
- Jam sets only with enough sugar and acid
- Vinegar preserves by pushing the pH below the safety line
- Fish sauce is salt and fermented fish, and mostly umami
- Dashi stacks two kinds of umami on purpose
- MSG is purified glutamate, isolated in 1908
- Blue cheese veins need air to turn blue
- Mozzarella is stretched, not pressed
- The crunch in aged Parmesan is crystallised amino acids
- A cheese rind is a protective skin that forms as the outside dries
- Cultured butter is fermented before churning
- Cream whips when air gets trapped in its fat
- Ice cream is half air by volume in some tubs
- Sorbet stays scoopable only with enough sugar
- Coffee grind size sets how fast flavour is extracted
- Water temperature changes how much tannin tea releases
- Matcha is shaded before the leaves are picked
Test what you know
Turn these facts into a quiz: Food & Cooking trivia questions, with an explanation after every answer.
More fact shelves
Questions people ask
- How many food facts are there?
- 100, each with a named source and a link to it. Ingredients, cooking, drink and where our food comes from.
- Where do these facts come from?
- Mostly primary sources: NASA, the ESA, museums, universities and peer-reviewed papers. A fact is only published here once a source can be linked, and the wording is written fresh rather than copied.
- Can I read them in one sitting?
- The page lists the newest first and the search box narrows by word. Every fact links onward to a quiz, game or calculator on the same subject, so it works as a browse or as a jumping-off point.