Root Beer Float vs. Milkshake: How to Choose

A root beer float and a milkshake are both cold, sweet treats built around ice cream, but they deliver very different experiences. A root beer float combines root beer with scoops of ice cream, creating a fizzy drink with a creamy, melting top. A milkshake blends ice cream with milk or another liquid into a smooth, thick drink. One is bubbly and changing; the other is uniform and sippable.

The choice usually comes down to the texture and flavor you want. Choose a float when the herbal, vanilla-like character of root beer and a little carbonation sound refreshing. Choose a milkshake when you want a consistently creamy dessert drink and prefer to focus on an ice-cream flavor. Understanding how each treat is assembled makes the difference easy to recognize and helps set expectations before the first sip.

The quick difference

A traditional root beer float starts with root beer poured into a glass or cup, then adds ice cream. The soda bubbles around the ice cream and can form a foamy layer at the top. As the ice cream melts, it slowly sweetens and softens the root beer. A spoon and straw are both useful because the early bites may include firm scoops while the later drink becomes creamier.

A milkshake is generally made by blending ice cream with milk until it is thick enough to drink but smooth enough to move through a straw. The ingredients are mixed together from the start, so the flavor and texture are more even from top to bottom. Some shakes are very thick and call for a spoon at first; others are thinner. That consistency depends on the recipe and serving style, but the basic idea remains a blended frozen drink.

Both can be described as classic cold desserts. The important distinction is method: a float layers soda and ice cream, while a milkshake blends its ingredients into one drink.

What is in a root beer float?

The basic root beer float needs only two components: root beer and ice cream, commonly vanilla. Vanilla is traditional because its creamy flavor softens the root beer without hiding it. The soda is still the main flavor, while the ice cream contributes sweetness, coldness, and a rich dairy texture.

Root beer

Root beer is a sweet, carbonated soft drink with a distinctive spiced or herbal profile. Different brands and recipes can lean more toward vanilla, wintergreen, sassafras-style flavoring, spice, or caramel-like sweetness. That variation matters in a float because the soda remains noticeable even after the ice cream begins to melt. A person who enjoys root beer on its own is likely to appreciate that recognizable flavor in a float.

Carbonation is another defining part of the experience. When soda meets ice cream, bubbles rise quickly and can create foam. The drink may change as you eat it: the first sips can be lively and fizzy, while later sips are smoother and creamier. This gradual shift is not a flaw; it is part of what makes a float different from a blended drink.

Ice cream

Ice cream gives a float its dessert quality. At the beginning, a scoop can be eaten with a spoon, offering a cold, dense contrast to the sparkling soda below. As it melts, it mixes with the root beer and makes the drink richer. Vanilla is the familiar choice, but the general idea can work with other flavors when a restaurant offers them. Exact flavors, portions, and preparation are menu-specific.

What is in a milkshake?

A milkshake starts with ice cream and usually includes milk to make the mixture drinkable. It is blended until the ingredients become creamy and integrated. The resulting flavor depends heavily on the ice cream or flavoring used, whether that is vanilla, chocolate, fruit, or another option. Unlike a float, a shake does not rely on carbonation for its personality.

A smooth, blended texture

Texture is the milkshake's main advantage for many people. Each sip is meant to be broadly similar to the last: cold, thick, and creamy. Blending distributes the ice cream throughout the drink, so there are no separate soda and scoop layers to navigate. It is a straightforward choice when you want a dessert beverage that feels cohesive from the first sip to the last.

Flavor stays at the center

In a milkshake, the featured ice-cream flavor tends to lead. A chocolate shake usually tastes primarily chocolatey and creamy; a vanilla shake is milky and sweet, with vanilla at the forefront. The drink does not have the spiced, carbonated element that root beer contributes to a float. This makes a milkshake a good fit for someone who wants a simple, dessert-first flavor without a soda note.

Texture and temperature: changing layers versus steady creaminess

A root beer float offers contrast. There may be cold, firm ice cream at the top, fizzy soda around it, foam near the surface, and a creamier mixture forming below. The temperature is cold throughout, but the mouthfeel shifts with each spoonful or sip. It can feel playful and refreshing, especially for someone who enjoys bubbles and does not mind a little melting and mixing along the way.

A milkshake is more stable in concept, even though it naturally softens as it sits. Its texture is creamy from the beginning, and its ingredients are already combined. There is less surprise in each sip, which can be exactly what makes it satisfying. A shake is often easier to treat as one continuous dessert drink, while a float invites alternating between spooning and sipping.

How sweetness and flavor differ

Both treats are sweet, but their sweetness arrives differently. In a root beer float, the sweetness of soda meets the richness of ice cream. Root beer's spice-like or herbal notes can keep the flavor from feeling purely creamy, and the carbonation adds a bright sensation. The result is sweet, aromatic, and sometimes more refreshing than a fully blended dairy drink.

A milkshake's sweetness is usually more concentrated around its ice-cream base. Its creamy texture can make the dessert feel richer and more filling, particularly when the flavor is chocolate or another bold option. There is no fizz to lift the taste, so the profile tends to be rounder and more dessert-like. Someone who finds soda flavors too distinctive may prefer a shake; someone who likes root beer but wants it softened with ice cream may prefer a float.

Which one fits the moment?

Choose a root beer float when you want the flavor of root beer, enjoy carbonation, and like the idea of a spoon-and-straw treat that changes as it melts. It can be a pleasant option after a savory meal because the soda brings a bright, bubbly contrast to the ice cream. The float is also a good choice for people who like to taste their dessert in layers rather than as a single blended flavor.

Choose a milkshake when smooth texture is your priority or when you already know the ice-cream flavor you want. A shake feels more like a traditional drinkable dessert: creamy, cold, and consistent. It may suit someone who would rather avoid carbonation or who wants a richer, more focused ice-cream experience.

Appetite and personal preference matter more than a universal rule. Both are sweet treats, and both can be satisfying. The useful question is whether a fizzy, layered drink or a thick, blended one sounds better right now.

Ordering with the current menu in mind

Famous Uncle Al's published menu lists milkshakes and root beer floats among its desserts and drinks. This guide explains the general difference between the two; it does not confirm current flavors, sizes, ingredients, prices, preparation, or availability. For the restaurant's current options, consult the published menu and contact the restaurant directly with any ingredient or ordering questions.

If you are deciding on a savory choice before dessert, our onion rings versus fries guide compares those two sides by crunch, flavor, and meal fit. Keeping the decisions separate makes it easier to choose the savory texture you want first, then the cold treat that sounds best afterward.

Frequently asked questions

What is the difference between a root beer float and a milkshake?

A root beer float combines root beer and ice cream in layers, so it is fizzy and changes as the ice cream melts. A milkshake blends ice cream and milk or another liquid into a smooth, creamy drink.

Does a root beer float have milk in it?

Traditionally, a root beer float is made with root beer and ice cream. The ice cream contains dairy unless a non-dairy alternative is used, but milk is not normally blended into the drink as it is in a milkshake.

Is a root beer float thicker than a milkshake?

Usually, no. A float begins with soda and scoops of ice cream, so it has both liquid and solid elements. A milkshake is typically thicker overall because the ingredients are blended into a creamy mixture. Actual thickness varies by preparation.

Why does a root beer float foam?

The carbonation in root beer releases bubbles when it comes into contact with ice cream. That interaction creates the familiar foamy top, especially just after the soda is poured.

Which is sweeter, a root beer float or a milkshake?

It depends on the recipe, portion, and flavors used. Floats combine sweet soda with ice cream, while milkshakes concentrate sweetness in a blended ice-cream base. Choose based on the flavor and texture you prefer rather than assuming one is always sweeter.