Frequently asked questions

If I can receive home delivery, do I still need to choose 7-ELEVEN refrigerated pickup?

If you are available to receive your order at home, you may choose HCT refrigerated home delivery, which has a lower shipping fee.

If you are not sure whether someone will be home when the parcel arrives, we recommend choosing Black Cat 7-ELEVEN refrigerated pickup for more flexibility and peace of mind.

How long do I have to pick up my order after it arrives at 7-ELEVEN?

After your order arrives at the selected 7-ELEVEN store, please pick it up within 4 days.

Since kefir is a refrigerated product, although the store will keep it refrigerated, we still recommend picking it up as soon as possible after receiving the arrival notification and placing it in your refrigerator promptly after pickup.

How much does 7-ELEVEN refrigerated pickup cost?

Black Cat low-temperature convenience store pickup has a higher shipping fee:

Orders under NT$1,300: shipping fee NT$160
Orders of NT$1,300 or above: shipping fee NT$80

Because this service uses Black Cat low-temperature delivery to your selected convenience store, the fee is higher than HCT refrigerated home delivery. However, it is a more flexible option if you are not always available to receive home delivery.

Is 7-ELEVEN refrigerated pickup the same as room-temperature pickup?

No. This is Black Cat’s cold convenience store pickup service. Your order will be delivered to your selected 7-ELEVEN store under low-temperature conditions and stored refrigerated at the store.

This service is suitable for kefir yogurt and other refrigerated products.

Who is 7-ELEVEN refrigerated pickup suitable for?

This option is especially suitable if:

  1. You are usually at work during the day and may not be home to receive delivery.

2. Your building management office cannot accept refrigerated parcels.

3. You prefer to pick up your order at a time that is convenient for you.

4. You have missed home delivery before because you were not at home.

What if I am not home during the day and cannot receive refrigerated home delivery?

You can choose Black Cat Low-Temperature Convenience Store Pickup – 7-ELEVEN Refrigerated Pickup.

If you are usually not home during delivery hours, or if you are worried that no one will be available to receive the parcel, we recommend choosing 7-ELEVEN refrigerated pickup when placing your order.

Your order will be delivered by Black Cat cole delivery to your selected 7-ELEVEN store. Once the parcel arrives, you will receive a pickup notification and can collect it at the store within 4 days.

What delivery options do you offer? Is convenience store pickup available? Do you provide refrigerated home delivery?

We offer a variety of delivery options to suit different customer needs. Please refer to the image below.

Can I change my subscription details (credit card, delivery address, delivery frequency), or request to delay or pause my subscription?

To ensure smooth fermentation scheduling and shipping operations,
👉 any of the following requests will require the subscription to be cancelled directly:

  • Change of credit card information
  • Change of delivery address
  • Change of delivery frequency
  • Request to delay shipment
  • Request to pause the subscription

After cancellation, if you wish to subscribe again,
please make sure to wait at least 24 hours before placing a new subscription.

Re-subscribing immediately after cancellation may result in system errors, order abnormalities, or shipping confusion,
which could affect actual shipment arrangements.
Thank you for your understanding.

How long is the shelf life after I receive the product?

Our kefir is freshly made to order and shipped refrigerated.
The remaining shelf life upon arrival may vary slightly depending on delivery time — usually about one day less than the expiry date .
During weekends, holidays, HCT/blackcat peak delivery seasons, or if there are delays in receiving the package, the remaining days may be shortened by an additional 2–3 days, which is normal.

Current refrigerated shelf life:
🐄 Original Milk Kefir – 21 days
🍓 Fruit Milk Kefir – 14 days
🌱 Soy Milk Kefir – 14 days
💧 Water Kefir – 28 days

We recommend storing it in the refrigerator as soon as you receive it and enjoying it while it’s fresh for the best flavor.

I want to return my order and request a refund. What should I do?

Since our products are fresh dairy (yogurt), they are not eligible for the 7-day return policy under Taiwan’s Consumer Protection Act.

  • If the product is defective, incorrect, or damaged during delivery → Please contact our customer service (line official @642sgfta) within 72 hours with photos. We will send driver to pick up damaged goods, cover the return shipping cost and arrange a refund or replacement.
  • If the return is due to customer-related reasons (e.g., incorrect address, recipient not available, uncollected package) → The refund will be processed after deducting the necessary costs (such as shipping fees and spoiled products caused by delay).

Thank you for your understanding.

I already specified a delivery time. Why didn’t my package arrive as scheduled?

Delivery Date:
For customer convenience, our website allows you to select your preferred delivery date.

Delivery Time:
Only Yamato (Black Cat) offers time-slot delivery, with two options: before 1:00 PM or 2:00–6:00 PM. Please note that exact delivery times cannot be guaranteed, as the final schedule depends on the courier’s route planning.

In most cases, over 90% of packages are delivered on time. However, around 10% may be delayed due to special circumstances such as high shipping volume during holidays, incorrect recipient address/phone number, recipient not at home, or unanswered calls.

👉 If you have very limited availability to receive packages, we recommend using store pickup service or purchasing directly from one of our partner shops to avoid failed delivery and return issues.

If no one is available to receive the package, the courier will call the phone number provided in your order to arrange a new delivery attempt. If delivery fails more than three times, the package will be returned. In the event of a return, we will deduct the necessary costs (e.g., shipping fees and any spoiled products due to delays) before issuing a refund. Thank you for your understanding.

Where is my package now? When will it arrive and how can I track it?

After the package is shipped, the system will send you an email with your logistics tracking number.

Open the order delivery progress query page on our official website, enter the logistics order number and your email address, and you can track the package.

For customers who use HCT, you can directly join the official line to get more accurate package information.

Do you have a physical store?

Currently, we only do online business. But you are more than welcome to visit our partner store. Click here to see their locations.

Can I place an order to the outer islands in Taiwan?

Yes, you can. Just proceed to check out and type your address, then you will see the shipping fee.

Can I place an order to a different country?

Yes, we can ship kefir grains to Hong Kong via SF Express. Normally it arrives within 48 hours.

On the checkout page, please select Hong Kong as the country in the address section. The shipping fee will be adjusted automatically. For detailed shipping rates, please refer to the shipping methods page.

When I will receive my package?

On the checkout page, you will be able to choose your preferred shipping date and time slot.

Basically, if you place the order before 12pm, the package will be sent out on the same day. Black cat generally delivers the next day (except Sunday). Express delivery (Pickupp) will deliver to you on the same day (Taipei City only)

If your profucts are out of stock or it is a pre order product, generally it will be delayed in 1 day or 2. We will email you about the delay.

How do I do 7-11 refrigerated pickup ?

Yes, that’s possible. Among all convenience stores, only 7-ELEVEN partnered with Yamato Transport (Black Cat) offers refrigerated pickup service.

When placing your order, please select “Yamato Low-Temperature Express to Store – 7-ELEVEN Refrigerated Pickup”, and include the store name and address of your chosen 7-ELEVEN in the order notes at checkout.

Please note that Yamato Transport is a paid service:
Orders below $1300: shipping fee $160
Orders above $1300: shipping fee $80

Once the package arrives at the store, you will receive an SMS notification, and you can then pick it up.

Additionally, 7-ELEVEN may charge an extra “store transfer handling fee.” This fee is currently waived during the promotional period. The end date of the promotion and the exact fee amount will be subject to Yamato Transport’s official announcements.

Please also note that the store delivery service is an arrangement between Yamato Transport and the recipient. If the package is not picked up within the required time frame (within 4 days) and is returned, we will not provide a second reshipment.

Can I do cash on delivery?

Yes, you can do it with black cat, convince store and local pickup at our store. Unfortunately, express delivery (pickupp) in Taipei city doesn’t provide cash on delivery service. 

Why am I still being charged for delivery fee while I order more than $999?

Please confirm the total amount on the checkout page after applying any discount codes or points. In many cases, the issue occurs because after using a discount, the final amount no longer meets the free shipping threshold.

Currently, orders over $999 qualify for free shipping via HCT Logistics. Black Cat refrigerated home delivery and 7-11 refrigerated pickup cost NT$160 for orders below NT$1,300 and NT$80 for orders over NT$1,300. For more details about shipping fees, please refer to the shipping methods page

If you still have issues, please feel free to contact us through line official. (line官方@642sgfta)

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