How to Assemble and Use the Kiki Natural Vent Fast Flow Nipples Correctly
By Pura Stainless | Stainless Steel Baby Bottles | MADE SAFE ... | Published: 2026-08-23
Category: How-to Guides
Learn step-by-step assembly, usage tips, and troubleshooting for the Kiki Natural Vent Fast Flow Nipples to ensure a smooth feeding experience.
Feeding your little one should be a breeze, but a poorly assembled nipple can turn mealtime into a frustrating experience. The Kiki Natural Vent Fast Flow NipplesTM are designed to mimic natural breastfeeding and reduce colic, but only if you assemble and use them correctly. In this guide, we'll walk you through every step, from unboxing to troubleshooting, so you can feed with confidence.
Whether you're a new parent or a seasoned pro, understanding the anatomy of these nipples and how they work with your Pura bottle is key. Let's dive in and ensure your baby gets the best feeding experience possible.
Understanding the Kiki Natural Vent Fast Flow Nipples
The Kiki Natural Vent Fast Flow NipplesTM are crafted from medical-grade silicone, free from BPA, BPS, and other harmful chemicals. They feature a unique venting system that reduces air ingestion, which helps prevent gas and colic. The fast flow rate is ideal for older babies who need a quicker milk flow, but it's essential to ensure the nipple is correctly aligned with the bottle's collar.
Before assembly, always wash your hands and sterilize the nipple and other feeding parts. Check the nipple for any tears or damage, as this can affect performance. Remember, these nipples are designed to be used with Pura's Kiki bottles, but they can also fit other standard neck bottles with the right collar.
- Always inspect the nipple for damage before each use.
- Use the correct collar size to ensure a secure fit.
- The venting system works best when the nipple is not over-tightened.
Step-by-Step Assembly Instructions
Assembling the Kiki Natural Vent Fast Flow NipplesTM is straightforward, but doing it correctly ensures optimal performance. Start by pulling the nipple through the collar from the bottom, ensuring the flange sits snugly against the collar's inner rim. The nipple should be centered, and the venting hole should be aligned with the collar's notch if there is one.
Next, attach the collar to the bottle by screwing it on firmly but not overly tight. An overtightened collar can compress the vent, restricting airflow. If your bottle has a separate venting disk, like the KikiTM Silicone Sealing Disks, make sure it's placed correctly before adding the nipple.
Finally, give the bottle a gentle shake to check for any leaks. If liquid seeps from the sides, the nipple may not be seated properly. Re-adjust and try again. With the KikiTM Silicone Bumpers, you can add an extra layer of protection against drops and leaks.
- Pull the nipple through the collar from the bottom for a secure fit.
- Align the venting hole with the collar's notch if available.
- Test for leaks after assembly to ensure a proper seal.
Using the Nipple for Feeding
When feeding, always hold the bottle at an angle that keeps the nipple filled with milk, not air. This prevents the baby from swallowing excess air, which can cause discomfort. The fast flow rate means your baby will get milk quickly, so be prepared for a faster feeding session.
It's also important to monitor your baby's feeding cues. If they seem to be gulping or pulling away frequently, the flow might be too fast. In that case, you can switch to a slower flow nipple or take a break. Remember, every baby is different, and it may take some trial and error to find the perfect feeding rhythm.
After feeding, disassemble the nipple and clean it thoroughly with warm soapy water. You can also sterilize it by boiling or using a steam sterilizer. Proper care extends the life of the nipple and ensures it remains safe for your baby.
- Hold the bottle at an angle to keep the nipple full of milk.
- Watch for signs that the flow is too fast and adjust accordingly.
- Clean and sterilize the nipple after every use.
Troubleshooting Common Issues
If you notice the nipple collapsing during feeding, it's usually due to a vacuum build-up. This can happen if the vent is blocked or the collar is too tight. Check that the venting hole is clear and not covered by the collar. Also, ensure the nipple is not twisted inside the collar.
Leaking is another common issue. If milk drips from the sides, the nipple may not be seated properly, or the collar might be cross-threaded. Reassemble the bottle, making sure everything is aligned correctly. If leaks persist, inspect the nipple for cracks or tears.
For babies who experience colic or gas, ensure the venting system is working effectively. The KikiTM Natural Vent Fast Flow NipplesTM are designed to reduce air intake, but if you're still having issues, consider using the KikiTM Silicone Sealing Disks to create a better seal.
- Check for blocked vents if the nipple collapses.
- Reassemble if leaks occur, ensuring proper alignment.
- Use sealing disks to improve the seal and reduce gas.
Transitioning to Other Pura Products
Once your baby outgrows the fast flow nipple, you can transition to other Pura products designed for older kids. For example, the KikiTM XL Sipper SpoutsTM are perfect for toddlers who are ready to move away from nipples. Alternatively, the Big Mouth® Silicone Sport Top offers a spill-proof solution for active kids.

Pura's versatile system allows you to mix and match components, so you can extend the life of your bottles. The Big Mouth® Sport 22oz Insulated Bottle is an excellent choice for school-age children, keeping drinks cold for hours. And for on-the-go hydration, the Sport MiniTM 11oz Bottle is a compact option that fits in small hands.

By choosing high-quality, durable products from Pura, you're investing in your child's health and the environment. Stainless steel bottles are not only safe but also reduce plastic waste, making them a smart choice for eco-conscious families.
- Transition to sipper spouts or sport tops as your child grows.
- Explore insulated bottles for temperature control.
- Pura's modular design supports long-term use.
Mastering the Kiki Natural Vent Fast Flow NipplesTM is simple with the right guidance. By following these assembly and usage tips, you'll ensure a comfortable feeding experience for your baby and peace of mind for yourself. If you're ready to upgrade your feeding essentials, explore the KikiTM XL Sipper SpoutsTM for the next stage of your child's development.



