Kefir Grains

Rated 4.86 out of 5 based on 97 customer ratings
(97 customer reviews)

Price range: NT$530 through NT$950

Choose 10g or 20g of live grains, on their own or in a starter kit with pH test strips, a glass jar, a strainer and a spoon.

✅ German cultures, carefully cultivated: These active grains come from a 2,000-year kefir tradition. We feed them fresh milk every day so they can multiply naturally.

✅ Buy once and keep culturing: With proper care, the grains continue to reproduce, offering better value than powdered yogurt starters sold at PX Mart.

✅ Guidance for beginners: A detailed culturing manual and after-sales support help you get started. If culturing fails within one month, we can send a free replacement.

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Buy this item and earn 10-19 Points — worth NT$10-NT$19. Only for members.
Buy this item and earn 10-19 Points — worth NT$10-NT$19. Only for members.

Choose your grains or starter kit

  • 10g starter kit: 10g of grains, pH test strips, a glass jar, a strainer and a spoon.
  • 20g starter kit: 20g of grains, pH test strips, a glass jar, a strainer and a spoon.
  • 10g grains only: For making 100–300g of milk kefir.
  • 20g grains only: For making 200–600g of milk kefir.

🌍 Milk kefir: benefits and origins

  • Benefits: Milk kefir contains a variety of probiotic bacteria and yeasts, protein and calcium, with a low sugar content. It is a familiar part of everyday eating in Europe. Its benefits include supporting digestion, regular bowel movements and metabolism. With more probiotics than many yogurts sold at PX Mart, it is also known as a drinkable source of probiotics.
  • Origins: Kefir grains originated in the Caucasus Mountains around 2,000 years ago. Our milk kefir is made with 100% fresh milk and kefir grains. Prepared by a European chef, it brings traditional fermentation together with a layered, gently tangy flavor and soft bubbles.

🏆 SGS testing

  • Live cultures: 57 billion live lactic acid bacteria per 100g—far more than PX Mart yogurts and Greek yogurt.
  • Testing: Tested by SGS Taiwan and exceeding the CNS3058 national standard for fermented milk.
  • Ingredients: Made with 100% fresh I-Mei milk. Our original milk kefir has no added artificial flavors, preservatives, milk powder or sugar. Fruit milk kefir contains natural fruit jam and a small amount of sugar for an approachable taste.
  • Culture origins: Our kefir grains come from Germany, continuing a tradition passed down over hundreds of years.

📊 Regular yogurt, milk kefir and Greek yogurt

Regular yogurt
Preparation: frozen starter culture and milk powder.
Probiotic cultures: fewer, with lower activity.
Sugar and additives: most contain sugar, preservatives, artificial flavors and additives.
Protein: low.
Price: low.

Milk kefir
Preparation: live kefir grains and 100% fresh milk.
Probiotic cultures: the highest count and a wider variety.
Sugar and additives: original flavor has no added sugar, very little lactose, no additives and no flavors. Fruit flavors contain a small amount of sugar.
Protein: moderate.
Price: moderate.

Greek yogurt
Preparation: frozen starter culture and milk powder, followed by straining to remove whey.
Probiotic cultures: a moderate count, with lower activity.
Sugar and additives: low sugar; most contain preservatives, artificial flavors and additives.
Protein: high.
Price: high.

👨‍⚕️ Experts and further reading

  • Dr. Berg: His YouTube videos discuss kefir’s nutritional value.
  • Professor Lin of National Taiwan University: His book describes kefir as a “gift from the gods” and a high-quality fermented milk.

Further reading:

  1. The Best Probiotic Is Not Yogurt — Dr. Berg
  2. Kefir: A Gift from the Gods — Professor Lin
  3. Cultured: How Ancient Foods Can Feed Our Microbiome — Katherine Harmon Courage
  4. Homemade Yogurt & Kefir — Gianaclis Caldwell

🍴 How to enjoy milk kefir

  • No added sugar: Our original milk kefir has no added sugar; it retains naturally occurring lactose from the milk.
  • Drink it on its own: Enjoy its natural fermented flavor.
  • Make a breakfast bowl: Add fruit, nuts and oats for a mix of textures.
  • Blend a smoothie: Combine it with fruit and vegetables for a green smoothie or your own variation.
  • Choose your moment: Enjoy it in the morning, as an afternoon snack or before a meal.

🛒 Where to buy kefir

Why make kefir at home?

  • Traditional flavor and the pleasure of making it yourself: Culture kefir at room temperature without a yogurt maker.
  • Buy once and keep culturing: With proper care, the grains continue to multiply, offering better value than powdered yogurt starters sold at PX Mart. If the grains die within one month, we will send a replacement.
  • Try different milks: Ferment cow’s milk, goat’s milk, soy milk or coconut milk to explore the flavor you prefer.
  • No added sugar or additives: A simple fermentation process lets you enjoy the natural flavor without extra seasonings.

Purchase and replacement information

  • Free replacement within 30 days: This also covers grains damaged during shipping.
  • Avoid heat: Keep the grains away from temperatures above 35°C. Do not heat them in a rice cooker, oven or similar appliance. Grains killed by this kind of heating are not eligible for replacement.
  • Start small: Try 50g of finished kefir first, then adjust how you enjoy it to suit your taste.

⚠️ Storage and care

  • Store finished milk kefir at 2–4°C: Refrigeration helps maintain fermentation balance and preserve its flavor.
  • Fermentation continues: Milk kefir continues to ferment slowly in the refrigerator; enjoy it according to your taste.
  • Milk allergen: This product contains cow’s milk and is not suitable for anyone with a milk allergy.
  • First time: Start with 50g and allow your body to adjust gradually.
  • Returns: The seven-day cooling-off period does not apply to fresh fermented food.
  • Keep the grains clean: Do not let kefir grains come into contact with tap water or unclean utensils.
  • Who can enjoy it: Children over one year old and pregnant women can consume it provided they have no relevant dietary restrictions or health conditions.
  • Medical care: Kefir is a food, not medicine. If you are ill, seek medical care first.

Want to taste kefir before deciding to make it yourself? Try our ready-to-drink milk kefir or soy kefir.

From the product gallery

Grains, packaging and support

Our German kefir grains have a cauliflower-like shape. They are packed in a glass bottle inside a sealed bag to keep them clean and hygienic. Choose 10g or 20g of grains. A culturing manual and personal help with culturing questions are included. If the grains die within 30 days, one free replacement is available.

What each option includes
  • 10g grains only — NT$530: 10g of grains, pH test strips, a bamboo spoon, a silicone spatula, an erasable marker, a thermometer strip and a culturing guide.
  • 20g grains only — NT$780: 20g of grains, pH test strips, a bamboo spoon, a silicone spatula, an erasable marker, a thermometer strip and a culturing guide.
  • 10g starter kit — NT$700: 10g of grains, pH test strips, a bamboo spoon, a 1-liter glass jar with a lid, a plastic strainer, an erasable marker, a silicone spatula, a thermometer strip and a culturing guide.
  • 20g starter kit — NT$950: 20g of grains, pH test strips, a bamboo spoon, a 1-liter glass jar with a lid, a plastic strainer, an erasable marker, a silicone spatula, a thermometer strip and a culturing guide.

The grains-only illustration shows 10g of grains for making 100–300ml of milk kefir, or 20g for making 200–600ml. The starter-kit illustration gives the plastic strainer size as 22.5 × 11.5cm.

Using the pH test strips

The included pH test strips help beginners check whether fermentation has succeeded. The gallery guide gives a pH range of 3.0–5.0 for finished milk kefir.

Make milk kefir in four steps
  1. Put the kefir grains and fresh whole milk in a glass jar. Cover the opening with a kitchen paper towel.
  2. Leave it in a cool place at room temperature, such as a kitchen cupboard, for 24 hours. In warmer conditions, use fewer grains or more milk; in cooler conditions, use more grains or less milk.
  3. Strain out the milk kefir and keep the grains for the next batch. The grains do not need rinsing.
  4. Keep the finished milk kefir in the refrigerator for 2–3 weeks. Add honey or jam if you would like more flavor.

Shipping Options

Delivery Terms & Conditions

Please choose the delivery method that matches the products in your order. Refrigerated products and room-temperature products may have different delivery options.

Kefir yogurt and other refrigerated products must be kept cold during transport. They cannot be shipped by regular room-temperature convenience-store pickup. Refrigerated delivery is available on Taiwan main island only. For offshore islands, please send us a message before ordering.

For the most accurate delivery options, please refer to each product page and the delivery methods shown at checkout.

📣 Fresh Food Notice

Fresh, refrigerated, and short-shelf-life products, including kefir yogurt, are consumable products with limited shelf life. Therefore, these products are not subject to Article 19 of Taiwan’s Consumer Protection Act and do not come with a 7-day cooling-off period.

Once a fresh, refrigerated, or short-shelf-life product has been shipped, we can only accept a return request if the product itself is defective or if the product was damaged during delivery. Please consider carefully before placing your order.

📦 Delivery Notifications

After your order has been shipped, we will provide the tracking number by email. You may also receive delivery-status email updates when the logistics status changes, such as in transit, out for delivery, ready for pickup, delivered, or delivery failed.

Please make sure your email address and phone number are correct when placing the order. If you do not see the delivery notification, please also check your promotions folder or spam folder.

The delivery process is handled by the logistics company. For urgent delivery issues, such as delivery progress, failed delivery, address correction, pickup reminders, or delivery-time changes, please contact the logistics company directly with your tracking number.

For product-related issues, such as product defects, wrong items, missing items, or damage during delivery, please contact us so we can help you check and handle the issue.

🗓️ Preferred Delivery Date & Time

During checkout, you may choose a preferred delivery date and, depending on the delivery method, a preferred delivery time slot.

We will do our best to arrange your order according to the selected delivery date. However, the final delivery date and time are handled by the logistics company, so we cannot guarantee that the package will arrive exactly on the selected date or within the selected time slot.

HCT Logistics and Black Cat usually deliver quickly within Taiwan main island, but next-day delivery is not guaranteed, especially on Sundays, national holidays, consecutive holidays, or during periods of high delivery volume.

⚠️ Important Notes

If delivery fails because no one is available to receive the package, the phone is not answered, the address is incorrect, or for other recipient-related reasons, the logistics company may arrange re-delivery or return the parcel according to its own delivery rules.

If a parcel is returned to us, we will deduct the necessary administrative and logistics fees before processing any eligible refund.

If you cannot accept the above delivery and refund rules, please do not place an order, to avoid inconvenience for both parties.

☎️ Logistics Customer Service Contacts

For delivery issues after shipment, please prepare your tracking number and contact the relevant logistics company directly.

HCT Logistics / 新竹物流: 412-8866. If calling from a mobile phone, please dial 02-412-8866.

Black Cat / 黑貓宅急便: 02-412-8888.

SF Express Taiwan / 順豐速運台灣: 412-8830. If calling from a mobile phone, please dial 02-412-8830. Overseas number: +886-2-2192-6063.

7-Eleven room-temperature store pickup / 7-ELEVEN 交貨便: 02-2721-4234.

FamilyMart room-temperature store pickup / 全家店到店: 03-2550-119.

Refrigerated Delivery Options

Refrigerated delivery is suitable for kefir yogurt and other products that must stay cold during transport.

1️⃣ HCT Logistics Refrigerated Home Delivery|NT$150|Free shipping for orders over NT$999

This is refrigerated home delivery by HCT Logistics.

During checkout, you may choose a preferred delivery date and delivery time slot. Please note that HCT often delivers according to the driver’s route and schedule, so the selected time slot may not be followed exactly.

On the day of delivery, the driver may call you. Please keep your phone available.

If no one is available to receive the package, HCT will handle re-delivery according to its own delivery rules.

HCT does not operate during national holidays or consecutive holidays. If you need delivery during those periods, please choose Black Cat refrigerated delivery.

2️⃣ Black Cat Refrigerated Home Delivery|NT$160 for orders below NT$1,300|NT$80 for orders over NT$1,300

This is refrigerated home delivery by Black Cat.

During checkout, you may choose a preferred delivery date and delivery time slot. Black Cat generally tries to follow the selected delivery time frame, but the final delivery time still depends on the driver’s route and delivery conditions.

If the delivery schedule falls on a Sunday, Black Cat delivery is generally postponed. Holiday and peak-period delivery times may also be adjusted according to Black Cat’s actual operations.

During national holidays or consecutive holidays, delivery dates and time slots may not be available or guaranteed, and next-day delivery cannot be guaranteed.

3️⃣ Black Cat Low-Temperature Rapid Store Pickup|7-Eleven Refrigerated Pickup|NT$160 for orders below NT$1,300|NT$80 for orders over NT$1,300

This is a Black Cat low-temperature rapid store pickup service. The refrigerated package is handled by Black Cat and delivered directly to the selected 7-Eleven store.

During checkout, please choose the Black Cat low-temperature / refrigerated 7-Eleven pickup option and select your preferred 7-Eleven store. No order note or extra store-transfer fee is required.

After the package arrives at the selected 7-Eleven store, you will receive a pickup notification by SMS. Please collect the package within the pickup period shown in the notification.

Because this is a refrigerated pickup service, please collect the package as soon as possible after receiving the notification.

Room-Temperature Delivery Options

Room-temperature delivery is only suitable for products that can travel without refrigeration, such as kefir grains, soap, and other eligible room-temperature products.

Kefir yogurt and other refrigerated products cannot be shipped by room-temperature convenience-store pickup.

4️⃣ 7-Eleven / FamilyMart Room-Temperature Pickup|NT$60|Free shipping for orders over NT$899

This option is available for kefir grains, soap, and other products that can travel at room temperature.

For kefir grains, some liquid leakage may occur during room-temperature shipping. This is because we add milk liquid into the glass bottle so the grains have food during transport.

During room-temperature delivery, the grains may consume the milk, turning it into clear whey. Fermentation may also produce carbon dioxide, which can push some liquid out of the bottle.

If you notice some leakage after pickup, this is usually normal. The leaked liquid is only leftover liquid from the grains’ food; the solid grains themselves should remain inside the bottle.

The sealed glass bottle is also placed inside a clean sealed bag for extra protection. This helps keep the grains clean even if some liquid leaks out.

If you are concerned about possible leakage, please do not choose this option.

Please pick up the package as soon as possible after it arrives at the store. After receiving kefir grains, please start fermentation as soon as possible. Otherwise, please refrigerate them immediately.

5️⃣ SF Express Room-Temperature Delivery to Hong Kong|For kefir grains and eligible room-temperature products only

We also offer room-temperature delivery to Hong Kong by SF Express for kefir grains and eligible products that can travel without refrigeration.

SF Express delivery to Hong Kong usually arrives on the next working day, but delivery time may vary depending on customs, holidays, weather, and courier conditions.

Please note that kefir yogurt and refrigerated products cannot be shipped to Hong Kong by room-temperature delivery.

Partner Stores

6️⃣ Partner Stores|In-Store Purchase

Please refer to the Partner Stores page for available locations and products.

Payment Method

Kefir Link takes the convenience and security of your payment seriously. We offer the following payment methods:

  1. Credit and debit cards: We accept major cards issued in Taiwan and overseas. Transactions are processed through TapPay, which has PCI DSS Level 1 security certification, to protect your payment information to the highest security standards. Your card information is handled directly by the bank; we do not store it.
  2. Bank transfer: You can transfer payment directly to our Cathay United Bank account. Our bank details will be emailed to you after you place your order. Include your order number in the transfer reference so we can promptly identify your payment.
  3. Cash on delivery: Place your order online without paying in advance, then pay the courier in cash when your delivery arrives. This is an option for customers who prefer to pay in cash.
  4. LINE Pay: Taiwan’s No. 1 mobile payment service. Complete your purchase quickly and securely through the LINE app.

For help, contact our official LINE account, @642sgfta, or visit our payment information page.

Milk Kefir Calculator

Milk Kefir Calculator

This calculator tells you how much milk and how many milk kefir grains to put in your jar.

New to milk kefir?

Kefir grains are small, soft pieces of living culture. They turn milk into kefir. They are not cereal grains.

This calculator is for milk kefir grains and dairy milk. Do not use water kefir grains.

Have these ready: pasteurized milk, a clean jar, spoon, strainer, clean cloth or coffee filter, and a rubber band.

1Choose your settings

Units
What do you want to know?
Your grains

Choose “Grains I need” when you know the milk amount. Choose “Milk I need” when you know the grain amount.

Active These grains are used often and make kefir normally.

Sleepy These grains are waking up after shipping, drying, freezing, or a long rest in the fridge. They may work more slowly, so the calculator uses 20% more grains.

The room temperature during the day where the jar will sit.

The room temperature at night where the jar will sit.

The temperature of the milk when you add the grains.

About the temperature

First-batch tip: start near 18–29°C (65–85°F) and about 24 hours.

How much milk you want to ferment.

How long the jar will sit before you strain out the grains. For a first batch, start with 24 hours.

Put all sliders back to the starting values.

97 reviews for Kefir Grains

4.9
Based on 97 reviews
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1-5 of 97 reviews
  1. 下單後很快收到貨物(香港收). 因該段期間港台兩地天氣非常酷熱(~33-36°C), 非常擔心菌種會熬不住旅程⋯⋯ 幸好一切順利!如今已做了5次(每次~1L奶), UHT 及鲜奶均有使用, 漸漸掌握不同 菌量/奶量/奶溫/室温 下的操作. 成品味道非常好, 比用乾kefir粉(我之前用)好. 店方也附上使用手冊及一些工具, 方便操作👍🏻

    (0) (0)
  2. 美味又營養

    (0) (0)
  3. 已經第5日了。日日換牛奶,但是都沒有發酵

    (0) (0)
  4. (0) (0)
  5. 包裝非常用心,與相關教學也很完善,希望後續發酵順利

    (0) (0)
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