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:
- The Best Probiotic Is Not Yogurt — Dr. Berg
- Kefir: A Gift from the Gods — Professor Lin
- Cultured: How Ancient Foods Can Feed Our Microbiome — Katherine Harmon Courage
- 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
- Ready to drink: Find it at selected organic shops and restaurants, or order online.
- Make it at home with live grains: Buy live kefir grains from a specialist fermentation supplier for active cultures and detailed guidance, helping you avoid unsuccessful batches and their risks.
- Powdered kefir starter: Available at some organic shops, but not at PX Mart.
- Delivery: Please read our delivery information before ordering.
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
- Put the kefir grains and fresh whole milk in a glass jar. Cover the opening with a kitchen paper towel.
- 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.
- Strain out the milk kefir and keep the grains for the next batch. The grains do not need rinsing.
- Keep the finished milk kefir in the refrigerator for 2–3 weeks. Add honey or jam if you would like more flavor.


















































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👍🏻
美味又營養
已經第5日了。日日換牛奶,但是都沒有發酵
包裝非常用心,與相關教學也很完善,希望後續發酵順利