Formulating Matcha Lattes with Dairy and Plant-Based Bases

There is no universally best base for a matcha latte. Dairy milk and commercial plant-based drinks—including oat, soya, almond and coconut products—differ in protein, fat, sugar, mineral composition, total solids, background colour and intrinsic flavour. Those differences may change how matcha is perceived in the finished drink, so the base and powder need to be assessed together in the intended formulation.

The development brief should therefore begin with the intended drinking experience rather than the popularity of a particular base. A café format may target an immediately recognisable matcha aroma, restrained bitterness and a rounded mouthfeel with a clean tea finish. Another product may prioritise a lighter tea profile, a brighter colour in the finished drink or good foam retention in an iced format. These are different formulation targets, even when both products are sold as matcha lattes.

Base Composition and Matcha Perception

Research on tea systems helps explain interactions between proteins and polyphenols. Reviews of milk–tea systems describe how proteins, carbohydrates and polyphenols can interact and affect taste and physicochemical properties. A separate sensory study using simplified catechin and milk-component preparations found reduced perceived astringency under its specific test conditions. Together, these studies provide useful context, but they do not show that any particular dairy base will consistently reduce astringency or improve mouthfeel in a commercial matcha formulation. Commercial matcha and beverage bases contain many more interacting components than the simplified systems studied.

Plant-based drinks also vary widely. Oat, soya, pea, nut and coconut-based products use different protein and fat systems, and commercial formulations may include oils, hydrocolloids, sweeteners or flavourings. A recent review of plant protein–polyphenol interactions describes possible mechanisms behind changes in tea astringency and mouthfeel and notes that aroma and texture may also change. Any such effects still need to be tested in the intended commercial latte.

Even within one base type, the exact commercial product matters. Original, unsweetened and barista-style oat drinks can have different ingredient declarations and formulation behaviour. Soya drinks can vary in sweetness, beany notes, body and foam performance. Development records should identify the product, variant and lot rather than referring only to an “oat” or “soya” trial.

What to Assess in the Finished Latte

A useful comparison records first-sip clarity of matcha character, bitterness, astringency, finished-beverage colour, body, powdery mouthfeel, foam performance and aftertaste in separate fields. The notes should show whether matcha is immediately recognisable or initially masked by cereal, beany, dairy or sweet characteristics from the base.

For consistent scoring, record bitterness as a taste, astringency as a drying or tightening oral sensation, body as the perceived weight and fullness of the drink, and powdery mouthfeel as a perceptible fine-particle sensation.

The base’s opacity and underlying yellow or grey cast may alter the appearance of the same matcha powder. A brighter dry powder does not necessarily produce the most suitable colour in every formulation. Protein, fat, solids and stabilising ingredients may also influence body, perceived grittiness, foam volume and foam retention. Assessment of the finish should record whether tea aroma, sweetness, cereal or beany characteristics, bitterness, astringency or dryness remain after swallowing. The purpose is to compare finished-latte performance, not to convert any single attribute into a powder grade.

A Controlled Matrix for Base and Powder Selection

A staged formulation matrix helps isolate the source of a difference. The initial comparison keeps one matcha sample, inclusion rate, liquid volume, sweetness, temperature and preparation method constant while changing only the base. This allows the team to observe whether and how each candidate base affects the clarity of matcha character, bitterness, astringency, finished colour, body, foam and aftertaste.

Once a base has been selected, a second comparison can hold that base constant while evaluating candidate matcha samples. Inclusion rate and sweetness can be adjusted in later trials. Optimising every powder-and-base combination independently from the start may produce acceptable drinks, but it makes the cause of each difference difficult to identify.

Hot and iced formats deserve separate assessment. Service temperature can change aroma release and sensory perception, while ice dilution changes concentration over time. Where drinks are held briefly before service, prepared for delivery or shaken before serving, testing should use realistic, standardised observation times to record short-term changes in appearance, separation, settling, foam loss and redispersion after shaking. The results apply only to the intended service window, not to shelf-life or RTD stability.

For multi-site operations, the comparison should also consider operational robustness. Repeating the preparation with the intended tools and representative operator-to-operator variation can reveal whether a promising sample is unusually sensitive to mixing technique or a brief holding period.

Information for a Matcha Latte Sample Brief

A commercially useful sample brief identifies the exact dairy or plant-based product and variant, together with its ingredient declaration where this can be shared. It also records whether the drink is served hot or iced, the target sweetness, serving volume, preparation method, target sensory profile and cost target.

Candidate powders can then be assessed for clarity of matcha character, the required bitterness–astringency balance, finished-beverage colour, powdery mouthfeel and cost-in-use, rather than simply ranked from high to low by grade. The approval record should identify the selected powder, tested base, service format and preparation method. A change to the base, variant or process calls for a focused repeat trial.

Discussing Base-Specific Matcha Requirements with CHA STELLA

CHA STELLA can discuss candidate samples in the context of the specified dairy or plant-based base, hot or iced format, sweetness target, preparation method, target sensory profile and cost target. Final suitability and inclusion rate must be established in the intended formulation, preparation method and service conditions.