导读：Kirkland 的代工厂商往往都是某个领域的巨头品牌哦！
与 Trader Joe's 一样，Costco 店中售卖很多自有品牌 Kirkland Signature 的商品。Kirkland 的商品不但质量有保证，价格也经常比同类商品便宜不少。Kirkland 的商品并非由 Costco 生产制作，而代工的那些厂商也不要以为是小作坊，这些「神秘」的厂商往往都是某个领域的巨头品牌哦！
下文内容，主要编译自 MoneyWise / Yahoo! News 的这篇文章。Kirkland Signature 除了 Costco 店里外，在 Amazon 上也有售，但是价格比 Costco 贵。
狗粮由 Diamond Naturals 代工
根据宠物狗食品网站 Dog Food Insider 的产品评测，Kirkland Signature 的宠物狗粮由 Schell and Kampeter, Inc 旗下的 Diamond Pet Foods 生产。2012年发生的狗粮食品安全事件，Kirkland 与 Diamond Pet Foods 也同时被召回。
- Real Beef protein for superior taste and nutrition.
- levels of vitamin E and selenium.
- Omega-6 and omega-3 Fatty acids for skin and coat.
- Chicken, Rice & Vegetables
- Glucosamine & Chondroitin
- Vitamin E, Selenium, Zinc & Active9 Probiotics
Costco 的 Kirkland 狗粮20磅售价约$25、40磅约$40-$45。
咖啡是 Starbucks 星巴克
Costco 售卖的2.5磅 Kirkland’s Signature House Blend Medium Roast, Espresso Blend Dark Roast and Decaf House Blend Medium Roast 咖啡豆都是由世界咖啡巨头星巴克烘焙生产，在外包装上就有注明，售价约 $13。
- Espresso Roast is intense, caramelly sweet and perfect with steamed milk
- We are currently updating our packaging look. You may receive either package for a limited time
- Enjoy the Starbucks coffee you love without leaving the house
- Kirkland Signature Espresso Blend Coffee, Dark Roast, Whole Bean
- 2 Pack
- Size per bag - 40 Ounce / 2.5 LBS Bag
如果咖啡豆消耗量大，比如办公室，可以考虑购买，价格比星巴克低，质量有保证。
婴儿配方奶粉是 Perrigo 生产
Abbott Laboratories（雅培）旗下拥有 Similac、Perrigo 等婴儿配方奶粉品牌，几个大的零售商，包括 Walmart、Target、Costco等都有和 Perrigo 合作生产 store brand 的婴儿配方奶粉，可在 Perrigo 旗下网站 StoreBrandFormula.com 查看合作商家。
- Advantage Infant Formula is an iron-fortified milk-based infant formula with complete nutrition for baby's first year Non-GMO; prebiotics; growth, eye & brain development; no artificial growth hormones**** Compare to Similac PRO-ADVANCE Infant Formula
- The first year is a time of rapid change for your little one Advantage Non-GMO Infant Formula contains nutrients like those found in breast milk, such as DHA, Lutein and Vitamin E to support growth, brain and eye development
- As a non-GMO* infant formula, Advantage contains ingredients that are *not genetically engineered No artificial growth hormones**** Advantage is a gluten free baby formula, and is Certified Kosher by the Orthodox Union - (U)D
- Similac is the first infant formula brand with no artificial growth hormone (no significant difference has been shown between milk derived from rbST treated and non rbST treated cows)
- Similac Advance Infant Formula is a nutritionally complete, milk based formula for your baby's first year with all ingredients carefully selected to meet our high standards
- NUTRIENTS: Features OptiGRO, our exclusive blend of DHA, Lutein and Vitamin E, special nutrients found in breast milk that are important for helping support baby's brain and eye development
Costco 4盒装 Kirkland ProCare 婴儿配方奶粉售价大约为$83。
Jelly Belly 的糖果
Costco 直接把生产商 Jelly Belly 的商标印到了自己 Kirkland 商品上，与 Jelly Belly 一样提供49种不同口味的糖果，符合犹太教洁食规范、无脂肪。
- Gourmet jelly beans have delicious, true-to-life flavor
- Includes 49 popular assorted flavors
- Eat them one by one or get creative with Jelly Belly Recipes
- The package length of the product is 11.4 centimeters
- The package width of the product is 12.2 centimeters
- The package height of the product is 21.3 centimeter
电池是 Duracell 金霸王
2016年，在亚特兰大电视台 WSB-TV 的一次采访中，Costco 的 CEO Craig Jelinek 亲口承认 Kirkland 的电池由 Duracell 金霸王生产。
- DurACell AA Batteries: The DurACell CopperTop Double A alkaline battery is designed for use in household items like remotes, toys, and more
- DurACell guarantees these batteries against defects in material and workmanship; should any device be damaged due to a battery defect, we will repair or replACe it at our option
- Long lasting power: DurACell alkaline batteries are designed and developed for long lasting performance
Bumble Bee 的金枪鱼罐头
2003年在 Money Magazine 采访中，Costco 执行副总裁 Tim Rose 透露，Costco 与世界海鲜公司 Bumble Bee 达成协议，生产鱼肉含量更多的金枪鱼罐头。
- Premium wild caught, canned solid white albacore tuna in water.
- Enjoy cans of BUMBLE BEE Solid White Albacore Tuna in Water as a great-tasting, protein-packed snack, for a healthy lunch or as part of any other meal.
- BUMBLE BEE tuna is the perfect choice for all your tuna recipes, and is a great food for those on a ketogenic (keto) diet.
- 100% Traceable from sea to shelf
- Monofilament leaders & circle hooks
- Dolphin safe
8盒装的 Kirkland 金枪鱼价格约为$17。
Kimberly-Clark 的婴儿尿布
2017年，Costco 财务主管 Richard Galanti 在华尔街日报的采访中，确认了 Kirkland 品牌的婴儿纸尿布由知名品牌 Kimberly-Clark 生产。
- Huggies Little Movers diapers size 5 fit babies 27+ lb. (12+ kg)
- #1 Fitting Diaper* features a contoured shape to move with your active baby and virtually eliminate leaks (*Wet Fit, Among Open Diapers)
- Huggies DryTouch Liner absorbs wetness on contact while baby is crawling, moving or walking
- Size 6: 35lbs and up, 120ct
- Waistband Pocket
Reynolds Wrap 铝箔纸
Costco 与来自新西兰的 Reynolds 合作生产销售 Kirkland 铝箔纸，外包装上就有 Reynolds 字样。
- This package contains one roll of Reynolds Wrap Standard Aluminum Foil, measuring 200 feet long by 12 inches wide (200 square feet)
- Aluminum foil wrap offers a durable way to protect pans, simplify cleanup and wrap leftovers
- Use as a tent over roasted meats, pan liners for baking, or a foil packet to infuse holiday dishes with flavor
500张 Kirkland 铝箔纸价格约为$12。
Chinet 的一次性杯子
240 只装 Kirkland 品牌的 18oz 红色杯子，价格约为$11。与上面铝箔纸一样，Costco 将合作商 Chinet 的品牌 Logo 印在了包装上。
- Designed for single use
- 60 cups and lids
- Keeps beverages warm
- 18oz capacity, 240 Count
- Premium heavyweight
- 100% pre-shrunk cotton
Warren 的汽车机油
Warren 是北美最大的独立润滑剂、机油生产商，旗下拥有多个品牌，例如 MAG 1，同时为 Walmart 生产 Super Tech 品牌机油、为 Amazon 生产 AmazonBasics 机油。Kirkland 的机油桶后面也印着 “Manufactured by Warren Distribution, Inc”。
- For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.
- For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.
- Formulated for longer drain intervals
- Helps prevent build up that can cause rust and corrosion
Kirkland 的 5 Quart x 2 机油价格约为$30。
意大利 Acetum Balsamic Vinegar 黑醋
根据网站 The Costco Connection显示，Costco 从1999年起与 Acetum 公司合作生产香醋，瓶上也有 Acetum 的品牌Logo。
- An 8.45-ounce glass bottle
- 4 leaf certified
- Product of Italy
- Kirkland Signature Aged Balsamic Vinegar - 1-Liter
- Size. 1 liter (33.8 fl oz.)
- Aged in oak casks for full-bodied flavor.
Aceto Balsamico Tradizionale di Modena 是摩德纳传统香醋，受到意大利原产地命名保护制度保护，参考维基百科词条。
无法确认的制造商
Kirkland 的其他很多商品，我们无法断定其生产厂家，下面列出一些：
- Gordon Biersch beer 与 Kirkland Craft Beers：西海岸 Costco 销售的 Kirkland 精酿啤酒，标签上印有 “Hopfen Und Malz Brewing Co”，其地址与 Gordon Biersch beer 的生产商地址吻合。不过在东海岸，如纽约的 Costco 销售的 Kirkland 精酿啤酒，上面印的是来自威斯康星 Stevens Point 的 “Bricks and Barley Brewing Company”，无法确定是不是生产 Saranac 和 Utica Club 的 Matt Brewing。
- Humboldt Creamery ice cream 与 Kirkland Super Premium Vanilla Ice Cream：2009年，加州的 Humboldt 申请破产后，卖给了竞争对手 Crystal Creamery，并在 Walmart 等全国零售商上架。有报道称其为 Costco 生产香草冰激凌；Humboldt 自身品牌的冰淇淋也曾出现在 Costco 的货架上。
- Ehrmann yogurt 与 Kirkland Organic Greek Yougurt：美国商人 Peter Cohan 在他2017年的书《Disciplined Growth Strategies》中声称，酸奶生产巨头 Ehrmann 为 Costco 生产希腊酸奶，但没有其他证据。
总结
Costco 旗下的 Kirkland Signature 产品一向以「价廉、物美、量大」著称。如果不是「品牌控」，选择 Kirkland Signature 产品每年可以省下不少钱。
Costco 会员卡区别和强悍的退货规则
Costco 会员有3种：普通的金星会员（Gold Star）、商业会员（Business）和返现2%的行政黑卡（Executive）。我刚来美国的时候办的是金卡，后来升级成了黑卡。
(more…)继续阅读：《Costco 会员卡区别和强悍的退货规则》。
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(more…)继续阅读：《Costco 值得一试的会员优惠服务》。
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我记着在哪块看过，大意就是Costco跟brand name manufacturer达成协议，内容之一就是品牌进驻Costco的前提是允许Costco随后以Kirkland Signature的名义卖同样的商品，但是一般还是找品牌方代工的。类似药品里面原研药和仿制药的关系吧。