Ice Cream Terms Glossary: 23 Words on Labels, Defined

Menus and tub labels are quietly full of jargon: overrun, MSNF, Philadelphia base, single-origin, "frozen dessert" in tiny type. This ice cream terms glossary defines the vocabulary that actually shows up in shops and on packaging, in plain language, so you can tell a real quality signal from marketing noise. Read it once and you'll decode almost any label, from a corner scoop counter to an import freezer, without guessing.

We've grouped the terms so they're easy to scan: how ice cream is built, how it's made, what goes in it, and how chocolate and labels get described. For the full production story behind these words, see how ice cream is made.

The structure words: air, fat and solids

These four terms explain why two scoops at the same price can feel completely different in the mouth.

• Overrun - The most important word here, and the one nobody prints on the tub. Overrun is the percentage of air whipped into the mix during freezing. Start with 1 litre of mix, finish with 1.5 litres of ice cream, and you have 50% overrun. Economy products run high (roughly 100% or more, meaning about half the volume is air); denser, richer styles sit lower (often 25-50%). More air means a lighter, cheaper scoop; less air means a heavier, more flavour-packed one. When something tastes suspiciously fluffy, that is high overrun.
• Butterfat (milkfat) - The cream fraction that carries flavour and gives a rounded, smooth mouthfeel. In many markets a product must clear a minimum milkfat level to be legally called "ice cream" at all; in the US that floor is 10%. Fat also slows melting and coats the tongue, which is why higher-fat scoops feel richer.
• MSNF (milk solids-not-fat) - Everything solid in milk that is not fat: the milk proteins (casein and whey), lactose (milk sugar), plus minerals and vitamins. MSNF builds body, improves whippability and helps a scoop resist heat shock. A typical mix carries around 10% fat and 11% MSNF.
• Total solids - Fat, MSNF, sugar and any added solids added up. The higher the total solids, the less "free" water there is to freeze into coarse ice crystals, so texture stays smoother. Watery, icy ice cream is usually low-solids ice cream.

The making words: from mix to scoop

This cluster is the production line in miniature. These are the verbs on any factory tour.

• Churn - To freeze and whip the mix at the same time. Churning does two jobs at once: it folds in air (overrun) and keeps ice crystals tiny by scraping them off the freezer wall before they can grow. More even churning means smaller crystals and a smoother scoop.
• Pasteurise - To heat the mix to kill harmful bacteria. Ice cream mix is usually held hotter or longer than drinking milk, for example roughly 79°C for 25 seconds, or a gentler 69°C for 30 minutes in a batch. This is a food-safety step, not a flavour step.
• Homogenise - To force the hot mix through a tiny valve under high pressure so the fat is broken into microscopic droplets (under about 2 microns). Evenly dispersed fat means a smoother texture and a mix that will not separate. It happens right after pasteurising.
• Age (ageing / maturation) - Resting the mix cold (near 4°C) for several hours before freezing. During ageing the fat partly crystallises and the proteins and stabilisers hydrate, which improves whip and body. Skipping it tends to show up as a thinner, less stable scoop.
• Temper (hardening) - Two meanings, both worth knowing. In production, tempering or hardening is quick-freezing the churned ice cream hard so crystals stay small in storage. On the serving side, "tempering" is letting a hard tub sit a few minutes so it scoops cleanly instead of shattering.
• Heat shock - The enemy, not a process. When ice cream partly melts and refreezes (a warm car, a fluctuating freezer), small crystals fuse into big gritty ones. That sandy, icy texture in an old tub is heat-shock damage.

The recipe words: bases and helpers

Here is where menus start showing off. These terms describe what the base is built from.

• Custard base (French style) - A base cooked with egg yolks, which add richness and a velvety, slow-melting body. In the US, a frozen custard must contain at least 1.4% egg yolk solids. "French vanilla" signals this egg-yolk, custard-style base rather than a specific bean.
• Philadelphia base - The eggless counterpart: just milk, cream, sugar and flavouring, no yolks. It churns into a cleaner, lighter, more direct-tasting scoop and lets a delicate flavour read clearly. Neither base is "better"; they are different textures.
• Frozen custard - The finished version of a custard base, churned with very little air. Low overrun plus egg yolks give it a dense, thick, spoon-coating texture, usually served a touch softer and fresher than hard-pack.
• Stabiliser - Ingredients (often plant gums like guar, locust bean or carrageenan) that hold onto water and thicken the mix. Their job is to slow ice-crystal growth and fight heat shock, keeping a scoop smooth over its shelf life. A short stabiliser list is normal, not a red flag.
• Emulsifier - Ingredients (egg yolk lecithin, or mono- and diglycerides) that manage the fat so it disperses evenly and then partly clusters during churning to trap air. Good emulsification gives a dry, stand-up texture and a stable scoop.
• Sugars / dextrose - Beyond sweetness, sugars lower the freezing point so ice cream stays soft and scoopable rather than rock-solid. Blends of sucrose and glucose or dextrose let makers fine-tune softness and body.

The serving and format words

How a scoop is frozen and held changes everything about how you eat it.

• Soft-serve - Ice cream churned and dispensed fresh from the machine at around −4°C, softer and often with higher overrun. Airy, cold and made to eat immediately.
• Hard-pack (hard scoop) - Ice cream frozen firm and held cold (around −12°C or colder) in tubs, then scooped to order. Denser, keeps its shape and melts more slowly than soft-serve.
• Gelato - The Italian style: typically lower fat than ice cream, much lower overrun (so it is denser), and served a little warmer, which makes flavours read as more intense on the tongue. Less air, not necessarily less richness.

The chocolate and label words

Cocoa has its own vocabulary, and so does the fine print. Read these before you assume "chocolate" means one thing.

• Cocoa mass (cocoa liquor / cocoa solids) - Ground cocoa nibs as a thick paste; essentially 100% unsweetened chocolate. A higher cocoa-mass percentage generally means a more intense chocolate flavour.
• Natural vs Dutch-processed (alkalised) cocoa - Natural cocoa (pH around 5-6) is lighter, fruitier and sharper. Dutch-processed cocoa is treated with an alkali to a pH of roughly 6-8, giving a darker colour, mellower, rounder flavour and easy mixing. Neither is better; they are different flavour directions.
• Single-origin cocoa - Cocoa traceable to one country, region or estate rather than a blend, so it carries the distinct character (its "terroir") of where it grew. It is a transparency and flavour claim, not a grade.
• "Frozen dessert" vs "ice cream" (label term) - Watch this one closely. In India, a product made with vegetable fat instead of pure milk fat must legally be labelled "frozen dessert", not "ice cream". "Ice cream" on an Indian label signals dairy-fat; "frozen dessert" signals vegetable-fat. It is the fastest quality check on any local tub.
• Compound vs pure chocolate - Pure chocolate uses cocoa butter as its fat. "Compound" chocolate swaps in cheaper vegetable fats, which changes melt and flavour. It is why "no compound" is a claim worth making.

FAQ

What does overrun mean on ice cream?

Overrun is the amount of air whipped into ice cream during freezing, given as a percentage of the original mix volume. Higher overrun means a lighter, airier, cheaper scoop; lower overrun means a denser, more flavour-forward one.

Is frozen custard just fancy ice cream?

Not quite. Frozen custard is built on an egg-yolk (custard) base and churned with very little air, so it is denser and more velvety. In the US it must contain at least 1.4% egg yolk solids to use the name.

Why is some chocolate labelled "frozen dessert" in India?

Because Indian food rules reserve "ice cream" for products made with milk fat. Anything using vegetable fat instead must be called "frozen dessert". Reading that one line tells you which fat is inside.

Does higher fat always mean better ice cream?

Not automatically. Fat adds richness and slows melting, but balance matters more: total solids, overrun, fresh flavour and low ice-crystal growth all shape the final scoop. A well-made medium-fat ice cream can easily beat a poorly balanced high-fat one.

Keep the glossary handy

Once these words click, a label stops being marketing and starts being information: overrun tells you how much air you are paying for, "ice cream" versus "frozen dessert" tells you which fat is inside, and single-origin tells you someone cared about the cocoa. At Donzel, we have been whisking happiness since 1984, and we would rather you know exactly what is in the scoop. If you want to taste the difference these terms describe, our tubs and made-to-order creations are waiting across our outlets and on the full menu, while COCO Batch Mix brings the cold-coco version home.