A recent comprehensive taste test by Japanese consumer magazine LDK has crowned Koiwai Junkun Butter as the ultimate choice for toast lovers, ranking 13 popular butters based on pure flavor and compatibility with bread. The evaluation, conducted by the publication’s expert panel, offers Hong Kong breakfast enthusiasts a data-driven guide to selecting the perfect pat of butter for that coveted crispy-on-the-outside, soft-on-the-inside morning toast.
For anyone who believes a great day starts with a perfect slice of toast, the butter spread makes all the difference. Yet supermarket shelves present a dizzying array of options—salted, unsalted, fermented—leaving shoppers unsure which brick to bring home. LDK’s rigorous test, published by Japanese lifestyle media 360life, tackled this dilemma head-on by scoring each product on two key criteria: standalone taste and how well it enhances toasted bread.
Understanding Butter Varieties
Before diving into the rankings, it helps to know the three main categories that dominate store shelves:
- Salted butter: Contains added salt during production, making it ideal for direct spreading on bread or adding savoury depth to everyday cooking.
- Unsalted butter: No extra salt is added (though milk naturally carries trace minerals), offering the purest dairy flavour—a favourite for baking and pastry-making.
- Fermented butter: Cultured with lactic acid bacteria, this variety develops a subtle tang and a deeper, more complex aroma that sets it apart from regular butter.
How LDK Evaluated
The magazine’s panel judged each butter using two rigorous standards:
- Pure taste: Could the rich flavour of fresh milk—the primary ingredient—be clearly appreciated even when eating the butter alone?
- Toast compatibility: Once spread on a crisp, golden slice of bread, did it elevate the wheat’s natural aroma and complement the crunchy, airy texture?
The Top Tier: A-Grade Butters (Rank 1–9)
First place: Koiwai Junkun Butter – This product from Koiwai Dairy emerged as the undisputed champion. Testers praised its intensely creamy milk flavour with a surprisingly clean, refreshing finish. When applied to hot toast, it melts slowly from the edges, delivering a luscious, fragrant experience that panelists described as almost good enough to eat raw.
Joint second: Seven Premium Salted Hokkaido Butter – A standout for value, this convenience-store brand balances saltiness perfectly, amplifying the bread’s wheat notes. Testers even recommended using a dab with soy sauce to sauté mushrooms.
Joint second: Yotsuba “Delicious Toast Butter” – Light on first taste, it then unleashes an explosive buttery richness that pairs superbly with well-toasted bread, leaving a deeply satisfying aftertaste.
Joint fourth: Calpis Special Salted Butter – Noted for its luxurious, layered saltiness and abundant dairy character; spreading it on bread feels almost decadent.
Joint fourth: Hokkaido Dairy Hokkaido Butter – Made from aged fresh cream, it offers a mildly salty, delicate profile with pronounced fresh milk notes.
Joint sixth: Topvalu Hokkaido Butter – Saltier when eaten alone, but spreads evenly to greatly enhance the toast’s grain flavour.
Joint sixth: Topvalu Fermented Butter – Boasts a fine, yoghurt-like acidity, making it excellent for creating raisin butter spreads.
Joint sixth: Murakawa Westgold Unsalted Butter – Sourced from New Zealand grass-fed cows, it delivers rich, smooth creaminess without any grassy aftertaste.
Joint sixth: Yotsuba Delicious Fermented Toast Butter – Features a very mild sourness and an airy, light texture—perfect for beginners exploring fermented butter.
The Second Tier: B-Grade Butters (Rank 10–13)
Joint tenth: Hokkaido Dairy Hokkaido Dairy Butter – A traditional heavy-hitter with high milk fat content, best paired with strong flavours like miso.
Joint tenth: Snow Brand Hokkaido Butter – Classic salted butter that meets conventional expectations; ideal for robust, flavourful breads.
Twelfth: Morinaga Dairy Hokkaido Butter – Leaves a clean aftertaste but lacks distinct character—its advantage is that it never overpowers the bread’s own aroma.
Thirteenth: Yotsuba Hokkaido Butter (Salted) – The saltiest of the bunch; testers advise avoiding it with already savoury bread and recommend it instead for cooking buttery potatoes.
Key Takeaways for Your Morning Toast
The LDK ranking confirms that not all butters are created equal when it comes to toast. For maximum indulgence, Koiwai Junkun delivers unmatched dairy richness without heaviness. For budget-conscious shoppers, Seven Premium’s salted Hokkaido butter offers exceptional performance at a fraction of the premium price. Those seeking a fermented twist should explore Topvalu’s fermented variety or Yotsuba’s gentle entry-level option.
Beyond the rankings, remember that butter choice ultimately depends on personal taste and intended use. Whether spreading, baking, or cooking, understanding the differences between salted, unsalted, and fermented will help you make informed decisions every time you reach for that golden brick in the dairy aisle.
Data sourced from LDK via 360life. Results are for reference only; individual preferences may vary.