Single-bottle sales cut Kirkland's entry cost from NT$269 to NT$135, but per 100 mL the change is only NT$7.12 to NT$7.14.
Back to the trend of the day: Costco in Taiwan switches Kirkland whole milk to single-bottle sales (in Chinese)
Poly Rating · from the trend of the day
Price of Milk at Costco Taiwan 2026: Top 10 Value Milks
One 1.89-liter Kirkland bottle at Costco Taiwan now costs NT$135, about NT$71 a liter, but two bottles cost NT$270, which is NT$1 more than the old two-pack.
- No. 1: Costco Kirkland Signature whole milk (1.89 L)
- 10 places
01Final list
The leading AIs each built their own list of ten independently. Here is one result that is easy to check: every place has a reason, a source, and the list of AIs that included it.
Order: from most to least AI agreement.
A bright badge means this AI put the entry on its list. A dim badge means it did not.
- 1
Costco Kirkland Signature whole milk (1.89 L)
Cheapest per 100 mL at NT$7.14, with about 0.48 g protein per NT$. Single bottles halve the upfront cost to NT$135, but the unit price barely moved from NT$7.12.
Included it: ChatGPT, Gemini, Claude, Kimi, DeepSeek.In their lists: ChatGPT: 1 · Gemini: 1 · Claude: 1 · Kimi: 1 · DeepSeek: 1
What each AI noted 5
- ChatGPTplace 1
The unit-price leader became easier to try: one 1.89-L bottle is reportedly NT$135, or about NT$71.43/L.
Source ↗ - Geminiplace 1
Priced at NT$7.14 per 100 mL, Costco's October 2026 unbundling to single NT$135 bottles cuts the upfront bulk barrier without losing its 35% discount against domestic milk.
Source ↗ - Claudeplace 1
At NT$135 per 1.89 L bottle it costs about NT$7.14 per 100 mL, and it carries the highest protein per NT$ of any mainstream product here (about 0.48 g per NT$).
Source ↗ - Kimiplace 1
NT$7.14 per 100 mL with the highest calcium in the comparison table (124 mg) and an 85-day shelf life nobody else offers.
Source ↗ - DeepSeekplace 1
1.89 L at NT$135 — NT$7.14/100 mL and 3.4 g protein, the lowest unit price here, now without a two-bottle commitment.
Source ↗
5 AIs put it here - 2
Carrefour fresh milk (1,858 mL)
Cheapest domestic bottle at NT$7.48/100 mL with no membership needed, and 3.2 g protein. The price is from the May 2025 snapshot.
Included it: ChatGPT, Gemini, Claude, Kimi, DeepSeek.In their lists: ChatGPT: 2 · Gemini: 3 · Claude: 2 · Kimi: 2 · DeepSeek: 2
What each AI noted 5
- ChatGPTplace 2
NT$139 covered 1.858 L in the May 2025 snapshot: less than NT$7.50 per 100 mL.
Source ↗ - Geminiplace 3
Private-label hypermarket pricing hits NT$8.34 per 100 mL in the 1.858L jug, beating national name brands on unit cost while retaining 100% domestic certified ranch sourcing.
- Claudeplace 2
Nearly as cheap as the big-box leader (NT$7.48 per 100 mL) without a membership, and it carries 3.2 g protein per 100 mL.
Source ↗ - Kimiplace 2
Ties the cheapest Taiwanese-label milk at NT$7.48 per 100 mL with 110 mg calcium per 100 mL.
Source ↗ - DeepSeekplace 2
At NT$7.48/100 mL, it is the cheapest domestic fresh milk in the May 2025 table — about 3% below A-Hou's unit price.
Source ↗
5 AIs put it here - 3
Ruisui whole fresh milk (瑞穗全脂鮮乳, 1,858 mL)
NT$166 per bottle both in May 2025 and in the government board's Oct 2026 check, so its NT$8.93/100 mL price has held.
Included it: ChatGPT, Gemini, Claude, Kimi, DeepSeek.In their lists: ChatGPT: 5 · Gemini: 4 · Claude: 5 · Kimi: 6 · DeepSeek: 6
What each AI noted 5
- ChatGPTplace 5
A current government-board retail snapshot puts the 1.858-L bottle at NT$166, while the older editorial snapshot works out to NT$8.93/100 mL.
Source ↗ - Geminiplace 4
A bulk 1.858L jug format priced at NT$8.18 per 100 mL delivers 57.6g of protein per container at hypermarket scale for large family breakfast tables.
- Claudeplace 5
The 1.86 L bottle is about 3 cents cheaper per 100 mL than Lin Feng Ying, and the brand ranks near the top of iGood's taste review.
Source ↗ - Kimiplace 6
The 1,858 mL family size brings a big brand to NT$8.93 per 100 mL.
Source ↗ - DeepSeekplace 6
NT$8.93/100 mL — cheaper per mL than I-Mei, with the same 3.2 g protein and 3.7 g fat.
Source ↗
5 AIs put it here - 4
Kuang Chuan fresh milk (光泉鮮乳, 2,720 mL)
Slightly more protein than Lin Feng Ying (3.3 g vs 3.2 g) for NT$0.03 more per 100 mL (NT$9.01).
Included it: ChatGPT, Gemini, Claude, Kimi, DeepSeek.In their lists: ChatGPT: 6 · Gemini: 5 · Claude: 7 · Kimi: 8 · DeepSeek: 5
What each AI noted 5
- ChatGPTplace 6
At NT$169–175 for 1.857 L in the October 5 snapshot, the 2025-listed large 2.72-L bottle costs less per unit but takes more fridge space.
- Geminiplace 5
Taiwan's convenience-store omnipresence pairs with NT$9.10 per 100 mL in family jugs, providing 3.2g protein and 3.7g fat across thousands of refrigerated doors.
Source ↗ - Claudeplace 7
It has slightly more protein (3.3 g) than Lin Feng Ying at nearly the same price per 100 mL (NT$9.01 vs NT$8.98).
Source ↗ - Kimiplace 8
NT$9.01 per 100 mL in a 2,720 mL jug — NT$0.03 more per 100 mL than arch-rival Lin Feng Ying.
Source ↗ - DeepSeekplace 5
A 2.72 L bottle at NT$9.01/100 mL — 3.3 g protein, but NT$245 upfront and a large fridge footprint.
Source ↗
5 AIs put it here - 5
Lin Feng Ying whole fresh milk (林鳳營, 2,728 mL)
NT$8.98/100 mL, but only if you buy the 2.73 L jug at NT$245. Oct 2026 observations put the 1,857 mL bottle at NT$169–179.
Included it: ChatGPT, Gemini, Claude, Kimi, DeepSeek.In their lists: ChatGPT: 8 · Gemini: 7 · Claude: 6 · Kimi: 7 · DeepSeek: 7
What each AI noted 5
- ChatGPTplace 8
One government-board snapshot put its 1.857-L bottle at NT$169–179; an older 2.728-L comparison was NT$245.
Source ↗ - Geminiplace 7
Delivering a dense 3.7g of butterfat per 100 mL, aggressive promotional discounting lowers its unit cost to NT$9.04 per 100 mL to win back price-sensitive shoppers.
Source ↗ - Claudeplace 6
The best-known brand sits around NT$9 per 100 mL, and a 936 mL bottle at PX Mart costs NT$85 (about NT$9.1/100 mL).
Source ↗ - Kimiplace 7
Taiwan's award-winning workhorse at NT$8.98 per 100 mL in a 2,728 mL jug built for big households.
Source ↗ - DeepSeekplace 7
The lowest domestic price per 100 mL in the table at NT$8.98, but you must buy 2.73 L and pay NT$245 upfront.
Source ↗
5 AIs put it here - 6
I-Mei whole fresh milk (義美全脂鮮乳, 1,750 mL)
NT$8.86/100 mL and the gentlest heat among the mainstream bottles. Its own source lists it as HTST 88°C in one table and UHT in another.
Included it: ChatGPT, Gemini, Claude, Kimi, DeepSeek.In their lists: ChatGPT: 10 · Gemini: 8 · Claude: 8 · Kimi: 5 · DeepSeek: 8
What each AI noted 5
- ChatGPTplace 10
The older comparison puts 1.75 L at NT$155, while a separate 936-mL label transcription shows 3.1 g protein and 3.7 g fat per 100 mL.
Source ↗ - Geminiplace 8
The 2-liter family jug brings I-Mei's pristine food safety reputation down to NT$8.90 per 100 mL, yielding 62g of protein per bottle with zero unverified additives.
- Claudeplace 8
It is the only mainstream bottle in the table pasteurized at 88°C for 20 seconds, and it still comes in under NT$9 per 100 mL.
Source ↗ - Kimiplace 5
NT$8.86 per 100 mL with gentler 88°C HTST processing instead of UHT.
Source ↗ - DeepSeekplace 8
NT$8.86/100 mL and 3.1 g protein — mid-pack on price, but one of the few mainstream cartons using HTST rather than 130°C UHT.
Source ↗
5 AIs put it here - 7
A-Hou local fresh milk (阿猴在地鮮乳, 936 mL)
A small NT$72 bottle still comes in at NT$7.69/100 mL, with 4.1 g fat, the most among the mainstream bottles.
Included it: ChatGPT, Claude, Kimi, DeepSeek. Did not include: Gemini.In their lists: ChatGPT: 4 · Claude: 4 · Kimi: 4 · DeepSeek: 3
What each AI noted 4
- ChatGPTplace 4
The smallest entry among the low-cost leaders was 936 mL for NT$72—only NT$3.25 more upfront than a 500-mL bottle would cost at that unit rate.
Source ↗ - Claudeplace 4
A small bottle at NT$72 gets you NT$7.69 per 100 mL, so low upfront cost does not cost much in unit price.
Source ↗ - Kimiplace 4
NT$7.69 per 100 mL and the lowest sodium in the table (32.4 mg per 100 mL) in a small 936 mL bottle.
Source ↗ - DeepSeekplace 3
NT$7.69/100 mL with 4.1 g fat — the highest fat among the sub-NT$8 domestic cartons.
Source ↗
4 AIs put it here - 8
Formosa Small Farmers' Select fresh milk (福爾摩沙小農精選鮮乳, 1,858 mL)
Ties Carrefour at NT$7.48/100 mL, but no protein or fat values are published, so its nutrition value can't be checked.
Included it: ChatGPT, Claude, Kimi. Did not include: Gemini, DeepSeek.In their lists: ChatGPT: 3 · Claude: 3 · Kimi: 3
What each AI noted 3
- ChatGPTplace 3
It tied Carrefour at NT$7.48/100 mL in the 2025 comparison, with a reported 20-second heat treatment.
Source ↗ - Claudeplace 3
It has the same NT$7.48/100 mL as Carrefour's milk, but the table lists no protein or fat, so its nutrition value can't be checked.
Source ↗ - Kimiplace 3
Same NT$7.48 per 100 mL as Carrefour's house milk, marketed on a small-farm sourcing story.
Source ↗
3 AIs put it here - 9
Wandan dairy-farm limited fresh milk (萬丹酪農戶限定鮮乳, 936 mL)
Easy to try at NT$89 a bottle and traceable to one farm, but at NT$9.51/100 mL it gives the least protein per NT$ (about 0.33 g).
Included it: Claude, Kimi, DeepSeek. Did not include: ChatGPT, Gemini.In their lists: Claude: 10 · Kimi: 9 · DeepSeek: 9
What each AI noted 3
- Claudeplace 10
A NT$89 bottle is easy to try, but at NT$9.51 per 100 mL and 3.1 g protein it gives the lowest protein per NT$ (about 0.33 g) of the mainstream bottles.
Source ↗ - Kimiplace 9
Costs NT$9.51 per 100 mL, but the bottle is traceable to one named Wandan dairy farm.
Source ↗ - DeepSeekplace 9
3.1 g protein and 3.8 g fat at NT$9.51/100 mL — a single-origin Pingtung carton with a small upfront cost.
Source ↗
3 AIs put it here - 10
Liu Jia Village fresh milk (六甲田莊, 946 mL)
Best protein among domestic bottles under NT$100 (3.4 g) at NT$8.56/100 mL. That price is from PX Mart in 2026 and comes from one source only.
Included it: Gemini, DeepSeek. Did not include: ChatGPT, Claude, Kimi.In their lists: Gemini: 2 · DeepSeek: 4
What each AI noted 2
- Geminiplace 2
Retailing at NT$8.35 per 100 mL at PX Mart, this cooperative farm bottle costs 15% less than major conglomerate brands while delivering full domestic nutrition.
Source ↗ - DeepSeekplace 4
3.4 g protein and 3.9 g fat at NT$8.56/100 mL — the best protein-and-fat package among domestic single bottles under NT$100.
Source ↗
2 AIs put it here
02Worth knowing
What the AIs noticed while building the list.
The Kirkland two-pack has climbed from NT$189 to NT$219, NT$249 and NT$269; two single bottles now cost NT$270, roughly 43% above where it started.
Kirkland keeps 85 days unopened against 12–13 days for domestic fresh milk, so a big bottle is far less risky for a small household.
Unit prices in the May 2025 table range from NT$6.75 (Kirkland) to NT$21.50 (Hokkaido imports), a 3.2× gap, while protein stays between about 3.1 and 4.0 g per 100 mL.
Numbeo-based reports call Taiwan's milk among the world's priciest at about NT$100 per liter, while farm-gate raw milk sells for roughly NT$30 per liter. The reported US$ figures (3.07, 3.09, 3.20) differ by date.
03How we counted
In plain words, no formulas.
1The question
Top 10 Taiwan Milk Buys by Real-World Value
2Why this topic
It puts price, label nutrition, and minimum purchase side by side, so shoppers can see trade-offs a price table alone misses.
3Where it applies
Taiwan retail milk market
4What we looked at
- Compare shelf price per liter with nutrition from package labels, such as protein and fat per 100 mL.
- Show bottle size and minimum purchase so shoppers can weigh unit price against upfront cost and storage needs.
- WellWells Taiwan milk comparison — Volume, shelf price, price per 100 mL, processing, shelf life and label protein/fat per 100 mL for about 19–21 products. The prices are a snapshot from 20 May 2025,
- United Daily News (16 Oct 2026) — Kirkland's switch to single bottles at NT$135 each from 14 Oct 2026, and the earlier two-pack prices of NT$189, 219, 249 and 269.
- Costco Taiwan Kirkland listing — 1.89 L × 2 format, 138°C for at least 2 s, 85-day unopened shelf life, milk fat 3.0% to under 3.8%. It shows no per-100 mL nutrition panel.
- National Development Council retail observations, republished by 好食物 — Observed retail price ranges for five mainstream fresh milks as of 5 Oct 2026.
- PX Mart online listings — Current shelf prices and nutrition panels for single bottles.
- Taiwan FDA nutrition-labeling rules — Required label fields per 100 mL: energy, protein, fat, carbohydrate, sugar and sodium. The values themselves come from each product's label.
5Who ranked
The leading AIs, each building its own list of ten independently and naming a source for every place: ChatGPT, Gemini, Claude, Kimi, DeepSeek.
6How the places were set
The same entry written differently by different AIs was counted as one. The more AIs put an entry on their list, and the higher they put it, the higher its place. "AI agreement" shows how many of the AIs had it on their own list. Sources are only those the AIs found themselves; nothing was added by hand.
04Each AI's own list
🇺🇸 ChatGPT10 places · 3 notes
The same question, answered by ChatGPT alone. The final list above combines all the AIs.
- 1Kirkland Signature Chilled Whole Milk (Taiwan Costco)
The unit-price leader became easier to try: one 1.89-L bottle is reportedly NT$135, or about NT$71.43/L.
Source ↗ - 2Carrefour Fresh Milk (Taiwan)
NT$139 covered 1.858 L in the May 2025 snapshot: less than NT$7.50 per 100 mL.
Source ↗ - 3Formosa Small Farmers’ Select Milk (Taiwan)
It tied Carrefour at NT$7.48/100 mL in the 2025 comparison, with a reported 20-second heat treatment.
Source ↗ - 4A-Hou Local Fresh Milk (Taiwan)
The smallest entry among the low-cost leaders was 936 mL for NT$72—only NT$3.25 more upfront than a 500-mL bottle would cost at that unit rate.
Source ↗ - 5Uni-President Ruisui Whole Milk (Taiwan)
A current government-board retail snapshot puts the 1.858-L bottle at NT$166, while the older editorial snapshot works out to NT$8.93/100 mL.
Source ↗ - 6Kuang Chuan Fresh Milk (Taiwan)
At NT$169–175 for 1.857 L in the October 5 snapshot, the 2025-listed large 2.72-L bottle costs less per unit but takes more fridge space.
- 7Kuang Chuan Milk House Fresh Milk (Taiwan)
Its smaller 1.857-L listing is cheaper upfront than the big bottle, at NT$169 in the 2025 snapshot.
Source ↗ - 8Lin Feng Ying Whole Milk (Taiwan)
One government-board snapshot put its 1.857-L bottle at NT$169–179; an older 2.728-L comparison was NT$245.
Source ↗ - 9Freshdelight 一番鮮 (Taiwan)
The October retail snapshot’s lowest recorded mainstream bottle price was NT$159 for 1.83 L.
Source ↗ - 10I-Mei Whole Milk (Taiwan)
The older comparison puts 1.75 L at NT$155, while a separate 936-mL label transcription shows 3.1 g protein and 3.7 g fat per 100 mL.
Source ↗
What ChatGPT noticed
Costco’s reported single-bottle option lowers the entry bill from NT$269 to NT$135, but two bottles now total NT$270—one dollar more than the old two-pack.
At NT$159–165, Freshdelight 一番鮮 is the cheapest of the five government-board-tracked mainstream bottles in the October 5 snapshot, but Kirkland’s reported NT$135 buys a similarly large single bottle.
WellWells’ May 2025 shelf comparison lists 19 products and puts Kirkland at NT$6.75/100 mL; its snapshot predates the October 2026 single-bottle change.
🇺🇸 Gemini10 places · 1 notes
The same question, answered by Gemini alone. The final list above combines all the AIs.
- 1Kirkland Signature Whole Milk (Costco Taiwan)
Priced at NT$7.14 per 100 mL, Costco's October 2026 unbundling to single NT$135 bottles cuts the upfront bulk barrier without losing its 35% discount against domestic milk.
Source ↗ - 2Liu Jia Village Whole Milk (六甲田莊)
Retailing at NT$8.35 per 100 mL at PX Mart, this cooperative farm bottle costs 15% less than major conglomerate brands while delivering full domestic nutrition.
Source ↗ - 3Carrefour Fresh Whole Milk (家樂福自有品牌全脂鮮乳)
Private-label hypermarket pricing hits NT$8.34 per 100 mL in the 1.858L jug, beating national name brands on unit cost while retaining 100% domestic certified ranch sourcing.
- 4RT-Mart Whole Milk (大潤發鮮乳)
A bulk 1.858L jug format priced at NT$8.18 per 100 mL delivers 57.6g of protein per container at hypermarket scale for large family breakfast tables.
- 5Guang Quan Whole Milk (光泉全脂鮮乳)
Taiwan's convenience-store omnipresence pairs with NT$9.10 per 100 mL in family jugs, providing 3.2g protein and 3.7g fat across thousands of refrigerated doors.
Source ↗ - 6Uni-President Rui Sui Whole Milk (統一瑞穗鮮乳)
Controlling roughly a third of Taiwan's fluid milk market, Rui Sui's two-carton supermarket promotions drop unit costs to NT$9.42 per 100 mL with standardized 3.6% butterfat.
Source ↗ - 7Wei Chuan Lin Feng Yin Whole Milk (味全林鳳營鮮乳)
Delivering a dense 3.7g of butterfat per 100 mL, aggressive promotional discounting lowers its unit cost to NT$9.04 per 100 mL to win back price-sensitive shoppers.
Source ↗ - 8I-Mei Pure Fresh Milk (義美全脂鮮乳)
The 2-liter family jug brings I-Mei's pristine food safety reputation down to NT$8.90 per 100 mL, yielding 62g of protein per bottle with zero unverified additives.
- 9Lun Bei Whole Milk (崙背鮮乳)
A single-township Yunlin cooperative dairy that undercuts boutique ranch competitors by selling direct through PX Mart at NT$9.40 per 100 mL.
Source ↗ - 10Chu Lu Ranch Whole Milk (初鹿牧場鮮乳)
At NT$10.36 per 100 mL, this Taitung mountain pasture brand commands a 45% unit premium over Costco for remote alpine dairy terroir and 3.8g fat.
Source ↗
What Gemini noticed
Costco's October 16, 2026 unbundling of Kirkland Signature whole milk from mandatory 2-packs into single NT$135 bottles (1.89L) eliminates bulk spoilage risks for small households while raising the price of two bottles by only NT$1.
🇺🇸 Claude10 places · 3 notes
The same question, answered by Claude alone. The final list above combines all the AIs.
- 1Costco Kirkland Signature whole milk (1.89 L, Taiwan)
At NT$135 per 1.89 L bottle it costs about NT$7.14 per 100 mL, and it carries the highest protein per NT$ of any mainstream product here (about 0.48 g per NT$).
Source ↗ - 2Carrefour fresh milk (1,858 mL)
Nearly as cheap as the big-box leader (NT$7.48 per 100 mL) without a membership, and it carries 3.2 g protein per 100 mL.
Source ↗ - 3Formosa Small Farm select fresh milk (福爾摩沙小農精選鮮乳, 1,858 mL)
It has the same NT$7.48/100 mL as Carrefour's milk, but the table lists no protein or fat, so its nutrition value can't be checked.
Source ↗ - 4A-Hou local fresh milk (阿猴在地鮮乳, 936 mL)
A small bottle at NT$72 gets you NT$7.69 per 100 mL, so low upfront cost does not cost much in unit price.
Source ↗ - 5Ruisui whole milk (瑞穗全脂鮮乳, 1,858 mL)
The 1.86 L bottle is about 3 cents cheaper per 100 mL than Lin Feng Ying, and the brand ranks near the top of iGood's taste review.
Source ↗ - 6Lin Feng Ying whole milk (林鳳營全脂鮮乳, 2,728 mL)
The best-known brand sits around NT$9 per 100 mL, and a 936 mL bottle at PX Mart costs NT$85 (about NT$9.1/100 mL).
Source ↗ - 7Kuang Chuan fresh milk (光泉鮮乳, 2,720 mL)
It has slightly more protein (3.3 g) than Lin Feng Ying at nearly the same price per 100 mL (NT$9.01 vs NT$8.98).
Source ↗ - 8I-Mei whole fresh milk (義美全脂鮮乳, 1,750 mL)
It is the only mainstream bottle in the table pasteurized at 88°C for 20 seconds, and it still comes in under NT$9 per 100 mL.
Source ↗ - 9New Zealand imported grass-fed milk (紐西蘭進口草飼鮮乳, 1 L)
It has the most protein among everyday bottles (3.9 g per 100 mL) and lasts 90 days, but costs NT$11.90 per 100 mL.
Source ↗ - 10Wandan dairy-farm limited fresh milk (萬丹酪農戶限定鮮乳, 936 mL)
A NT$89 bottle is easy to try, but at NT$9.51 per 100 mL and 3.1 g protein it gives the lowest protein per NT$ (about 0.33 g) of the mainstream bottles.
Source ↗
What Claude noticed
The Kirkland change is NT$1 more for two bottles (NT$270 vs NT$269), yet the pack began at about NT$189. The new single-bottle option helps small households that cannot finish two bottles.
Kirkland's shelf life is 85 days unopened, against 12 to 13 days for the domestic bottles. That makes a large purchase far easier to store, though it is a different product type.
The price spread across the table is large: NT$6.75 per 100 mL for Kirkland versus NT$21.50 for the imported Hokkaido cartons, a 3.2x difference with similar protein (3.4 to 4.0 g).
🇨🇳 Kimi10 places · 4 notes
The same question, answered by Kimi alone. The final list above combines all the AIs.
- 1Kirkland Signature Chilled Whole Milk (Costco Taiwan)
NT$7.14 per 100 mL with the highest calcium in the comparison table (124 mg) and an 85-day shelf life nobody else offers.
Source ↗ - 2Carrefour Taiwan Fresh Milk (家樂福鮮奶)
Ties the cheapest Taiwanese-label milk at NT$7.48 per 100 mL with 110 mg calcium per 100 mL.
Source ↗ - 3Formosa Small-Farm Select Fresh Milk (福爾摩沙小農精選鮮乳)
Same NT$7.48 per 100 mL as Carrefour's house milk, marketed on a small-farm sourcing story.
Source ↗ - 4A-Hou Local Fresh Milk (阿猴在地鮮乳)
NT$7.69 per 100 mL and the lowest sodium in the table (32.4 mg per 100 mL) in a small 936 mL bottle.
Source ↗ - 5I-Mei Whole Fresh Milk (義美全脂鮮乳)
NT$8.86 per 100 mL with gentler 88°C HTST processing instead of UHT.
Source ↗ - 6Ruisui Whole Fresh Milk (瑞穗全脂鮮乳)
The 1,858 mL family size brings a big brand to NT$8.93 per 100 mL.
Source ↗ - 7Lin Feng Ying Whole Fresh Milk (林鳳營全脂鮮乳)
Taiwan's award-winning workhorse at NT$8.98 per 100 mL in a 2,728 mL jug built for big households.
Source ↗ - 8Kuang Chuan Fresh Milk (光泉鮮乳)
NT$9.01 per 100 mL in a 2,720 mL jug — NT$0.03 more per 100 mL than arch-rival Lin Feng Ying.
Source ↗ - 9Wandan Single-Farm Fresh Milk (萬丹酪農戶限定鮮乳)
Costs NT$9.51 per 100 mL, but the bottle is traceable to one named Wandan dairy farm.
Source ↗ - 10New Zealand Grass-Fed Fresh Milk (紐西蘭進口草飼鮮乳)
The nutrition-per-splash outlier: 3.9 g protein and 129 mg calcium per 100 mL, but NT$11.90 per 100 mL.
Source ↗
What Kimi noticed
My value score weights unit price ~50%, nutrition per NT dollar ~30%, and package practicality (bottle size, shelf life, minimum purchase) ~20%; on that math Kirkland's NT$7.14/100 mL plus 124 mg calcium/100 mL and 85-day shelf life beats every domestic rival even after the NT$1 'split-sale' hike.
The raw-milk paradox: Taiwan's farm-gate raw milk fetches only about NT$22–30 per kg, yet retail milk averages ~NT$100/L — Numbeo's 2025 figure of US$3.20/L makes Taiwan Asia's most expensive milk market, with 30–40% of the shelf price going to retail channels.
Kirkland's price history is a one-way ratchet: NT$189 per 2-bottle pack years ago, then NT$219, NT$249, NT$269, and now NT$135 x 2 = NT$270 — roughly a 43% rise from the early NT$189 pack.
UHT changes the value math: Kirkland's 138°C ultra-pasteurization gives 85 days unopened versus 12–13 days for local fresh milk, so a big bottle is far less risky for a small household — one reason the split into single bottles mattered less to some members than the NT$1 price rise.
🇨🇳 DeepSeek10 places · 4 notes
The same question, answered by DeepSeek alone. The final list above combines all the AIs.
- 1Kirkland Signature Chilled Whole Milk (Costco Taiwan, 2026)
1.89 L at NT$135 — NT$7.14/100 mL and 3.4 g protein, the lowest unit price here, now without a two-bottle commitment.
Source ↗ - 2Carrefour Fresh Milk (1858 mL, Taiwan)
At NT$7.48/100 mL, it is the cheapest domestic fresh milk in the May 2025 table — about 3% below A-Hou's unit price.
Source ↗ - 3A-Hou Local Fresh Milk (936 mL, Taiwan)
NT$7.69/100 mL with 4.1 g fat — the highest fat among the sub-NT$8 domestic cartons.
Source ↗ - 4Liu Jia Village Fresh Milk (946 mL, Taiwan, 2026)
3.4 g protein and 3.9 g fat at NT$8.56/100 mL — the best protein-and-fat package among domestic single bottles under NT$100.
Source ↗ - 5Kuang Chuan Fresh Milk (2720 mL, Taiwan)
A 2.72 L bottle at NT$9.01/100 mL — 3.3 g protein, but NT$245 upfront and a large fridge footprint.
Source ↗ - 6Ruisui Whole Milk (1858 mL, Taiwan)
NT$8.93/100 mL — cheaper per mL than I-Mei, with the same 3.2 g protein and 3.7 g fat.
Source ↗ - 7Lin Feng Ying Whole Milk (2728 mL, Taiwan)
The lowest domestic price per 100 mL in the table at NT$8.98, but you must buy 2.73 L and pay NT$245 upfront.
Source ↗ - 8I-Mei Whole Milk (1750 mL, Taiwan)
NT$8.86/100 mL and 3.1 g protein — mid-pack on price, but one of the few mainstream cartons using HTST rather than 130°C UHT.
Source ↗ - 9Wantan Dairy Farmers' Exclusive Fresh Milk (936 mL, Taiwan)
3.1 g protein and 3.8 g fat at NT$9.51/100 mL — a single-origin Pingtung carton with a small upfront cost.
Source ↗ - 10Ruisui Premium Fresh Milk (930 mL, Taiwan)
HTST at 72°C for 15 seconds, but NT$10.54/100 mL — nearly double Carrefour's unit price for the same 3.2 g protein.
Source ↗
What DeepSeek noticed
The value score used here weights price per 100 mL at 55%, protein at 25%, fat at 10% and minimum purchase/upfront cost at 10%; Kirkland wins the first two, while small domestic bottles win the last.
Kirkland at NT$7.14/100 mL is about 26% below Numbeo's roughly NT$97/L national average, even though it is imported U.S. milk.
The single-bottle switch cuts the upfront commitment from NT$269 to NT$135, but the unit price barely moves: NT$7.14 versus NT$7.12/100 mL for the old two-pack.
Costco's two-pack history runs from NT$189 to NT$219, NT$249 and NT$269 before the single-bottle change; at NT$135 a bottle, the per-litre price is still near the old two-pack level.