What's the Difference Between Oat Latte and Regular Latte? How to Make a Delicious Oat Latte Coffee? What is Plant-Based Milk?

An Introduction to Plant-Based Milk Coffee

Many people experience adverse digestive reactions after consuming dairy products due to lactose intolerance, which prevents them from enjoying regular milk coffee. There is no need to worry, though: if you are lactose intolerant, you can simply choose a "milk coffee" that does not contain lactose. An oat milk latte, for example, is a special "milk coffee" made with lactose-free plant-based milk instead of regular milk.

The reason FrontStreet Coffee puts quotation marks around "milk coffee" is not to emphasize those two words, but because plant-based milk is not truly a dairy product. Therefore, "milk coffee" made from it cannot be considered genuine milk coffee.

What Is Plant-Based Milk?

Plant-based milk is a grain beverage made from plant seeds or fruits rich in protein and fat, with water as the base. Because of the protein, the beverage appears milky white, similar to milk, hence earning the name "plant-based milk" — think of soy milk for reference.

Soybeans, walnuts, peanuts, almonds, and hazelnuts are all common ingredients for plant-based milk. Although there are many types, when it comes to the most common plant-based milk products in coffee shops, oat milk takes the lead.

The popularity of oat milk is not just the contribution of a certain chain brand; it also benefits from its unique texture. Tasted directly, it offers an abundant grain aroma and rich, layered mouthfeel that complement coffee perfectly. Coupled with its zero-lactose property, the popularity of oat milk lattes has thrived in recent years. However, many friends have told FrontStreet Coffee that their homemade oat milk lattes not only fail to meet expectations but also have a very obvious bitterness, completely inferior to lattes made with regular milk.

Key Considerations for Making Oat Milk Latte

Just as making lattes with milk requires attention to many details, making oat milk lattes also requires care. If we directly apply a regular latte formula to an oat milk latte, the result will indeed be much inferior. But if we slightly modify our approach and redesign a formula specifically for oat milk, the drink might be even more delicious than you imagine. So next, FrontStreet Coffee will share the details worth paying attention to.

Consideration 1: Choosing the Right Oat Milk

To make a delicious latte, we specifically look for the milk that best complements the current coffee's performance. The same principle applies to oat milk lattes. Different manufacturers produce oat milk with significant differences in taste and texture, so the first step to a good oat milk latte is choosing the right oat milk.

Take FrontStreet Coffee as an example: we currently use Warm Sun Blend for our espresso beans, and the espresso it produces has prominent flavors and excellent body. If we use an oat milk with a very heavy texture, the resulting latte will be rather cloying; if we choose an oat milk with weaker flavor expression, the coffee will easily overpower the milky aroma. Therefore, to make a good oat milk latte, pair it with an oat milk that has prominent aroma expression and appropriate body.

Consideration 2: Ratio Adjustment

After selecting the oat milk, the next issue is ratio. Although the aroma of oat milk is not weak, its sweetness is inferior to milk. If we make oat milk lattes using the same ratio, the coffee flavor will be more prominent.

Therefore, we can appropriately increase the proportion of oat milk in the drink. This way, the coffee flavor will not easily cover up the oat milk, and it naturally will not taste as bitter. Also, because oat milk separates after standing for a long time, we need to shake it to restore its consistency before use. Many friends fail to make good oat milk lattes because they overlook this point.

Consideration 3: Latte Art Challenges

This is the last detail to watch. Because oat milk has a lower protein content than regular fresh milk, it is harder to foam. If we use the milk-frothing method to froth oat milk for a hot drink, the milk foam may well be too thin, causing latte art patterns to drift or fail to form properly.

Therefore, when frothing oat milk, we can slightly increase the thickness of the milk foam. For example, if the milk foam thickness for a regular latte is about 1cm, then when making an oat milk latte, increase the foam thickness by 0.5cm~1cm on that basis. This makes patterns easier to form and positions less likely to shift.

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FrontStreet Coffee Recommendation

Because oat milk has a milder sweetness than dairy, the espresso base needs enough body and aroma to stand up to it. FrontStreet Classic Blend is a natural fit: designed for espresso and moka pot brewing, it delivers outstanding crema and a full, mellow body, so a beginner can still pull a dense, silky shot to layer over the oat milk.

If you want to keep costs sensible without sacrificing flavor, FrontStreet Black Cocoa Blend offers ample crema and a rich body at a friendly price, balancing quality and value. For extra golden foam and deeper caramel richness, FrontStreet Commercial Blend and FrontStreet Classic Blend both include a small amount of Robusta, adding crema and depth to the cup.

For a fruitier oat latte, FrontStreet Strawberry Candy Beans is a popular fruit-forward espresso blend that recreates a vivid strawberry gummy sweetness and suits both home drinking and commercial café menus; it is especially good for anyone who loves fruity coffee and dislikes bitterness, and one bag covers many brewing styles. Those who prefer a nuttier, creamier base can also choose FrontStreet Specialty Blend, which is dominated by Brazilian coffee and brings complex almond and walnut notes with a silky texture — a strong partner for milk and plant milk alike.