Kitchen tips and how-tos: food storage, cooking shortcuts, cleaning tricks and the little know-how that makes home cooking easier.

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A wooden spoon hooked over the rim of a saucepan
Kitchen Tips & How-Tos

What the Notch on the Edge of a Wooden Spoon Is For

Some wooden spoons have a notch cut into one side of the handle, up near the top. Others have a flat cut across one edge of the bowl. I owned several for years and assumed they were decorative, or just where the wood had been shaped. Both have a job. The Notch in the Handle Is a Pot Rest The notch sits over the rim of a pot so the spoon hangs on the edge instead of sliding down into whatever you’re cooking. It’s the answer to the thing that happens to everyone — you leave the spoon in the …

Bobby pins on a bathroom counter showing the wavy side
Kitchen Tips & How-Tos

Why Bobby Pins Have One Wavy Side

A bobby pin has one flat side and one side with waves in it. Almost everybody puts them in flat side down, and almost everybody is doing it backwards. Wavy Side Goes Against Your Head The waves are the grip. They’re what press into the hair and hold it. The flat side is the smooth outer face. Put the wavy side down against your scalp and the pin bites. Put it up and the pin has nothing to hold on to — which is why they slide out after twenty minutes and you spend the day finding them on the …

A glass measuring jug of milk showing its markings
Kitchen Tips & How-Tos

Why Your Measuring Cup Has an Empty Gap Above the Top Line

Look at a glass measuring jug. The highest marking — the 2 cup line, or 500ml — is not at the top. There’s an inch or so of empty glass above it. It looks like the manufacturer got the design wrong. They didn’t. That gap is the entire reason a glass jug is better than a plastic cup for wet ingredients. The Gap Is for Carrying Liquid sloshes. Fill a jug to the actual brim and the walk from the tap to the mixing bowl loses you a tablespoon on the counter every time. The headspace means you can fill …

A plastic milk jug showing the circular panel in its side
Kitchen Tips & How-Tos

Why Milk Jugs Have That Round Dent in the Side

Pick up a plastic gallon jug of milk and you’ll find a circle pressed into one side, like a shallow dish set into the plastic. The story that goes round is that it pops out when the milk has gone off. It doesn’t. It never has. The real answer is more useful. It’s an Expansion Panel Milk moves. It gets cold, it gets warm, it gets knocked about in a crate on a lorry, and the pressure inside the jug changes with all of it. Thin plastic with no give in it would bulge, split at a seam, or push …

The bottom drawer of an oven standing open with trays inside
Kitchen Tips & How-Tos

Why Your Oven Has a Drawer at the Bottom (It’s Not for Pans)

Every oven I’ve ever owned has had a drawer underneath it. For about fifteen years I kept baking trays in mine. Then a plumber who was fixing something else entirely opened it, looked at me, and asked whether I knew what it was for. I did not. It Depends What Kind of Oven You Have There are two different drawers that look identical from the outside, and which one you’ve got changes everything. 1. A Warming Drawer On most modern electric ovens, that bottom drawer is a low-temperature warming compartment. It has its own gentle heat and it’s designed to …

A food can on its side showing the domed base
Kitchen Tips & How-Tos

Why Some Cans Have a Dent in the Bottom

Run your hand over the bottom of a can of soup and you’ll feel it — a shallow dome pushed up into the middle, so the can actually sits on its rim rather than flat on its base. It looks like a manufacturing shortcut. It’s the opposite. It’s one of the most deliberate bits of design in your cupboard, and it’s also a safety signal. Why the Bottom Is Domed Canned food is heated inside the sealed can to sterilise it. Heating makes the contents expand; cooling makes them contract. The can has to survive that, twice, without splitting. A …

A tube of toothpaste on a bathroom sink beside a toothbrush
Kitchen Tips & How-Tos

What the Colored Stripe on a Toothpaste Tube Really Means

You’ve seen the post. A small colored rectangle on the crimped end of a toothpaste tube, and a chart telling you that green means all natural, blue means natural plus medicine, red means natural plus chemicals, and black means pure chemicals. It has been shared millions of times. It is completely false. Here’s what that mark actually is — and it’s a more interesting answer than the myth. It’s a Printer’s Mark The colored square is called an eye mark, or a color mark. It exists for a machine, not for you. Toothpaste tubes are printed and then filled and …

A glass ketchup bottle beside a plate of chips
Kitchen Tips & How-Tos

Why Ketchup Bottles Have a Number 57 on the Neck

There’s a raised number 57 on the neck of a glass Heinz ketchup bottle. Not on the label — molded into the glass itself, up near the shoulder. I’d seen it a thousand times and filed it as branding. It is branding. It’s also the single most useful thing on the bottle. Tap the 57 When the ketchup won’t come out, you’re supposed to tap firmly on that raised 57 at about a 45 degree angle. Not the base. Not the bottom of the upturned bottle, which is what most of us do and which does almost nothing. The 57 …

A raw egg yolk in a shallow white dish beside a cracked shell
Kitchen Tips & How-Tos

Why Some Eggs Have a Red Spot Inside

I cracked an egg into a bowl on a Sunday morning and there it was — a small red speck sitting on the yolk like a full stop. My first instinct was to throw the whole thing out. My mother-in-law’s first instinct, when I showed her, was to laugh at me. She was right. Here’s what that spot actually is. It’s a Blood Spot, and It’s Harmless Those little red or brown specks are blood spots — sometimes called meat spots when they’re browner. They happen when a tiny blood vessel in the hen’s ovary ruptures as the yolk is …

Stacked plastic food containers beside a microwave
Kitchen Tips & How-Tos

What the Numbers on the Bottom of Your Plastic Containers Mean

Turn over a plastic tub from your cupboard and you’ll find a little triangle of arrows with a number in the middle, usually somewhere between 1 and 7. Most of us read it as a recycling instruction. It is partly that. But the number is really telling you what the plastic is made of — and that matters a lot more for the ones you keep food in. What the Number Actually Is It’s a resin identification code. It says which plastic was used, which tells you how it behaves with heat, with oil, and over time. Here’s the short …