Strainer Bag, Reusable Stretch Nut Milk Bag

Kava Strainer Bag: Reusable Stretch Fabric Bag for Kava, Nut Milk, Juice and Cold Brew

The Kava Strainer Bag gives you smooth, grit-free kava every session. The tight-knit stretch fabric, similar to the material in spandex sportswear, holds back root fibre while the kavalactones pass into the water, so each shell comes out clean. The stretch lets you squeeze and wring the bag hard without tearing the seams.

The same bag works as a nut milk bag, juice strainer, cold brew coffee filter and yoghurt strainer, so one KSh 150 bag covers most straining jobs in a Kenyan kitchen.

What You Get

• Quantity: 1 reusable strainer bag
• Material: Stretch nylon-spandex fabric with a tight knit
• Feel: Soft, flexible and stretchy for easy kneading and wringing
• Bag size: [approx. 25 x 30 cm]
• Closure: Drawstring top to keep kava inside while you knead
• Reusable: Rinse, dry and use again for months of sessions

How to Use the Strainer Bag for Kava

1. Add 30 to 35g (4 to 6 tablespoons) of medium grind kava to the bag.
2. Place the bag in a bowl with 500ml of room temperature or warm water (40 to 60°C).
3. Pull the drawstring closed and let the bag soak for 5 minutes.
4. Knead and squeeze the bag under the water for 10 minutes. The water turns cloudy and brown as the kavalactones release.
5. Wring out the bag over the bowl, empty the spent root, and serve in 100- to 150ml shells.

For ratios, water temperature and first-timer tips, read our full guide on how to prepare kava.

More Ways to Use Your Strainer Bag

• Nut milk bag: Strain homemade almond, cashew, groundnut and coconut milk.
• Plant milk filter: Make smooth soy milk and oat milk with no pulp.
• Cold brew coffee bag: Fill with ground Kenyan coffee, steep in cold water overnight, and lift the bag out in the morning.
• Juice strainer: Separate pulp from passion fruit, beetroot, celery, ginger and tamarind (ukwaju) juice.
• Yoghurt and mala strainer: Hang yoghurt or mala to drain the whey for thick Greek-style yogurt.
• Cheesecloth replacement: Make paneer, cottage cheese and labneh.
• Tea and herbal infusions: Steep loose tea, hibiscus (sorrel) or lemongrass in a jug.
• Homebrewing: Hold fruit mash for wine, beer and kombucha.
• Stocks and broths: Strain bones, herbs and spices from soups.

Strainer Bag vs Kitchen Sieve for Kava

Kava releases kavalactones through kneading and pressure, and a kitchen sieve gives you no way to knead. Sieve holes also run wider than a strainer bag's tight knit, so fibre slips into your drink and leaves a gritty texture, which often upsets the stomach.

A stretch fabric strainer bag lets you work the root by hand for a full extraction and keeps the fibre out of the shell.

Care and Cleaning

• Turn the bag inside out and rinse in cold water straight after use.
• Wash with mild dish soap, then rinse well.
• Hang to air dry fully before storing to prevent mould and odours.
• Skip bleach, boiling water and the tumble dryer, since heat wears out stretch fabric.
• Replace the bag once the fabric loses stretch or shows holes or loose seams.

Buy a Kava Strainer Bag in Kenya.

Tick the strainer bag box on any medium-grind kava page to add one to your order, or buy the bag on its own here. We offer same-day delivery in Nairobi and ship to every county in Kenya. You also find us every Saturday at the Marula Green Farmers Market in Karen.

Pair your bag with a medium-grind kava: Loa Waka for full-strength sessions, Borongoru for sleep, Borogu for an afternoon-to-evening arc, or Pouni Ono for daytime clarity.

Frequently Asked Questions

Do I need a strainer bag for medium-grind kava?

Yes. Medium grind kava is whole ground root, and the fibre stays in the drink without a strainer bag. The bag lets you knead the root for full strength and drink a smooth, clean shell.

Is a kava strainer bag the same as a nut milk bag?

Yes. Both are fine strainer bags with a drawstring top. Our bag handles kava, nut milk, juice, cold brew coffee and yogurt equally well.

What material is the strainer bag made from?

The bag uses a stretch nylon-spandex fabric, the same type of material found in spandex sportswear. The tight knit stops kava root fibre and nut pulp, and the stretch gives under pressure, so you squeeze out more liquid with less effort and less risk of tearing.

Does cheesecloth work instead?

Cheesecloth works in a pinch, but cotton layers shift during kneading, stain quickly, hold odours and wear out after a few uses. A stretch fabric strainer bag stays in one piece, cleans in seconds and lasts for months.

Is the bag safe with hot water?

Use warm water up to 60°C for kava. Boiling water damages kavalactones and weakens the stretch in the fabric.

How long does one bag last?

With a rinse after each use and full drying, one bag lasts for months of regular sessions.

Where do I buy a strainer bag in Nairobi?

Order here for same-day delivery anywhere in Nairobi, or pick one up at our Saturday stand at Marula Green Farmers Market in Karen. For questions, WhatsApp or call us on +254 702 251 255.