Grass-fed vs grain-fed butter: what is the difference, and does grass-fed butter taste different?
The cows’ diet can influence butter colour, flavour, fatty-acid composition, firmness and baking behaviour. Yet dairy farming rarely fits into a simple “only grass” or “only grain” division. Pasture, conserved forage and supplementary feed may all form part of a responsible feeding system.
Grass-fed butter comes from milk produced in a pasture-based feeding system where grass and recognised forage make up a high proportion of the cows’ diet. Grain-fed butter usually refers to milk from systems using a greater proportion of grain, maize silage, concentrates or total mixed ration. The feeding system can influence colour, flavour, firmness and fat composition, but neither style is automatically better for every person or every recipe.
Grass-fed butter vs grain-fed butter at a glance
| Feature | Grass-fed or pasture-based butter | Higher-grain or indoor-feeding butter |
|---|---|---|
| Cow diet | A high proportion of pasture, grass, forage or other recognised grass-fed feed types | A larger proportion of grain, maize silage, concentrates or total mixed ration |
| Pasture access | Commonly associated with outdoor grazing, subject to the standard or farming system used | May involve partial grazing or predominantly indoor feeding |
| Typical colour | May appear more yellow because pasture can contribute natural carotenoid pigments | May appear paler, although breed, season and processing also affect colour |
| Flavour | Can have a more distinctive or seasonally influenced dairy character | Can have a milder or more uniform flavour profile |
| Firmness | May be softer at room temperature in some controlled comparisons | May be firmer in some total mixed ration comparisons |
| Baking performance | Depends on the exact butter composition, temperature and recipe | Also depends on butter composition, temperature and the complete recipe |
| Health context | Still a concentrated dairy fat and high in saturated fat | Also a concentrated dairy fat and high in saturated fat |
These are general tendencies, not guarantees. Season, cow breed, milk composition, cream handling, culturing, churning, salting and storage can all influence the finished butter.
What does grass-fed butter mean?
Grass-fed butter is made from milk supplied through a dairy feeding system that meets a stated grass or forage requirement.
Depending on the standard, recognised grass-fed feed types may include:
- Fresh pasture
- Grass and clover
- Hay
- Grass silage
- Approved forage crops
Grass-fed does not necessarily mean that cows eat only fresh green grass every day of the year. Weather, pasture availability, animal welfare and seasonal conditions may require conserved forage or limited supplementary feed.
What does grain-fed butter mean?
Grain-fed butter is usually an informal description rather than one universal regulated category.
It commonly refers to butter made from milk produced in feeding systems where cows receive a greater proportion of:
- Grain
- Maize silage
- Protein concentrates
- Commercial supplementary feed
- Total mixed ration, often abbreviated to TMR
This does not necessarily mean that the cows never eat grass. Many dairy farms use a combination of pasture, silage, grain and supplementary feed. Feeding systems exist on a spectrum rather than as two completely separate categories.
New Zealand’s grass-fed dairy standard
New Zealand’s Ministry for Primary Industries has established a voluntary administrative standard that provides a national definition for grass-fed dairy claims.
Under the dairy standard:
- Recognised grass-fed feed types must make up, on average, at least 90% of the diet of dairy animals supplying the relevant milk pool.
- The animals must have access to pasture for at least 340 days of the year.
- Pasture access must be available for at least eight hours per day on those days.
- Temporary removal from pasture may be permitted for animal management, adverse weather or environmental protection.
The standard is voluntary. It provides a framework for supporting a New Zealand grass-fed claim, but it does not mean that every dairy product made in New Zealand is automatically certified under the standard.
Read the New Zealand grass-fed administrative standards .
Why can grass-fed butter look more yellow?
Pasture contains carotenoids, including beta-carotene. Some of these naturally occurring pigments can pass into milk fat and contribute to a more yellow butter colour.
Colour is not proof by itself. The appearance of butter is also affected by season, pasture species, cow breed, stage of lactation, butter composition, processing and storage.
A deeper yellow tone may therefore be consistent with a pasture-based feeding system, but it does not independently prove grass-fed status, certification or overall quality.
Does grass-fed butter taste different?
Taste remains partly personal. Feeding systems can affect milk-fat composition and some aroma compounds, and controlled studies have found sensory differences between pasture-derived and total mixed ration-derived butter.
However, flavour also depends on:
- Whether the cream is cultured
- Freshness
- Salt level
- Milk quality
- Butterfat and water content
- Churning and washing
- Storage conditions
Some people prefer a pronounced pasture-derived dairy character. Others prefer a milder, more uniform butter. Grass-fed is an important origin and production attribute, but it is not a universal flavour ranking.
Is grass-fed butter healthier?
Pasture-based feeding can produce measurable differences in the fatty-acid and carotenoid composition of butter. The exact result varies with the feeding system, pasture allowance, season and the butter being tested.
These compositional differences should not be converted into broad medical promises. Both grass-fed and grain-fed butter remain:
- Concentrated sources of energy
- High in total fat
- High in saturated fat
- Foods normally used as part of a wider diet
A brand should not describe butter or butter cookies as treating heart disease, reducing inflammation, improving immunity or providing a major source of omega-3 without appropriate product-specific evidence and compliant nutrition or health claims.
Grass-fed butter and cultured butter are not the same
Grass-fed
Describes the cows’ feeding system and the pasture-based origin of the milk.
Cultured
Describes how cultures are used to develop the cream before it is churned into butter.
Both together
A butter can be grass-fed and cultured, combining pasture-based dairy origin with developed dairy flavour.
Culturing can give butter a deeper, rounder and more developed dairy aroma. Grass-fed describes where the milk comes from and how the cows were fed. One term does not automatically prove the other.
Compare the two butter-making styles in Cultured Butter vs Regular Butter and read WHY.004: Why Cultured Butter? .
Does grass-fed butter behave differently in baking?
It can, although the difference is product-specific. Changes in fatty-acid composition may affect:
- Firmness
- Softening at room temperature
- Crystallisation
- Melting behaviour
- Creaming with sugar
- Dough spread
Feeding system is only one variable. Baking performance also depends on butterfat and water content, butter temperature, flour, starch, sugar, mixing, shaping, dough temperature and baking conditions.
The complete recipe determines the cookie.
Does grass-fed butter create a melt-in-the-mouth cookie?
Not by itself.
Butter contributes flavour, aroma, richness and tenderness. A delicate, melt-in-the-mouth cookie structure comes from the balance of:
- The total butter percentage
- The balance of flour and starch
- The type and amount of sugar
- Moisture
- Mixing and shaping
- Cookie size and thickness
- Baking and cooling
Learn more in The Science of Butter Cookies .
Why Lowrey uses New Zealand grass-fed cultured butter
Lowrey Butter Cookies are made in New Zealand with New Zealand grass-fed cultured butter.
The two qualities work together in different ways. Grass-fed describes the pasture-based dairy origin. Cultured describes the process used to develop the butter’s aroma and flavour before churning.
Lowrey Original Butter Cookies are made with 42% New Zealand grass-fed cultured butter.
Coffee contains 44% butter; Chocolate, Matcha and Raspberry each contain 41%; and Black Sesame contains 36%. Each flavour has its own flavour-specific recipe.
The delicate, very fragile and melt-in-the-mouth texture comes from the complete recipe and production process, not from the grass-fed claim alone.
Lowrey describes the ingredient as New Zealand grass-fed cultured butter. It does not add claims such as “100% grass-fed”, “independently certified” or “government-certified” unless those exact terms are supported by current supplier documentation.
Butter provides aroma and richness, while the complete Lowrey recipe creates the delicate, melt-in-the-mouth structure.The bottom line
Grass-fed and grain-fed butter can differ because the dairy cows receive different proportions of pasture, forage, grain and supplementary feed.
Greater pasture intake may influence butter colour, fatty-acid composition, firmness, melting behaviour and flavour. The size and direction of those differences vary, and grass-fed butter is not automatically better for every person or every recipe.
Lowrey chooses New Zealand grass-fed cultured butter for its pasture-based origin and developed dairy character. In the finished cookie, that butter works together with flour, corn starch, icing sugar, flavour ingredients and careful production.
Discover New Zealand butter cookies
Explore Lowrey Butter Cookies made in New Zealand with New Zealand grass-fed cultured butter and packed in single-flavour red gift tins.
Explore Butter CookiesFrequently asked questions
Is grass-fed butter made from cows that eat only fresh grass?
Not necessarily. The definition depends on the standard. Recognised feed may include fresh pasture, hay, grass silage and approved forage crops, and some systems permit limited supplementary feed.
Is grain-fed butter made from cows that never eat grass?
No. Many dairy systems combine pasture, conserved forage, grain and supplementary feed. Grain-fed is often an informal description of a system using a higher proportion of grain or total mixed ration.
Is every New Zealand butter automatically grass-fed?
No. New Zealand has a strongly pasture-based dairy system, but geographic origin alone does not prove compliance with a particular grass-fed standard or certification programme.
What does New Zealand’s grass-fed dairy standard require?
The voluntary MPI standard requires recognised grass-fed feed types to provide, on average, at least 90% of the relevant dairy animals’ diet. The animals must also have pasture access for at least 340 days per year and at least eight hours per day on those days.
Is cultured butter always grass-fed?
No. Cultured describes how the cream is developed before churning. Grass-fed describes the dairy feeding system. A butter may be cultured without being grass-fed, or grass-fed without being cultured.
Does grass-fed butter taste different?
It can. Pasture-based feeding can influence milk-fat composition and aroma compounds, so grass-fed butter may have a more distinctive or seasonally influenced dairy character. Taste still depends on the individual butter, culturing, salt, freshness and storage.
Is grass-fed butter automatically better for baking?
No. It may differ in firmness, melting or crystallisation, but baking results also depend on butter composition, temperature and the complete recipe.
Does Lowrey use grass-fed cultured butter?
Yes. Lowrey Butter Cookies are made with New Zealand grass-fed cultured butter. Original contains 42%, Coffee 44%, Chocolate 41%, Matcha 41%, Raspberry 41% and Black Sesame 36% butter by recipe weight.
Does every Lowrey flavour contain 42% butter?
No. The 42% figure applies only to Original. Coffee contains 44%, Chocolate 41%, Matcha 41%, Raspberry 41% and Black Sesame 36% butter by recipe weight.
Sources and further reading
This article provides general food information and is not medical advice. Dairy feeding systems, butter composition and product claims can vary. Check current product information and supplier documentation when relying on a specific certification or standard claim.
