Introduction
This instruction manual provides essential information for the safe and effective use of your Dr. Brown's Natural Flow Anti-Colic Options+ Narrow Baby Bottles. These bottles are designed to reduce colic, spit-up, burping, and gas, and help preserve nutrients in breast milk and formula. Please read this manual thoroughly before first use and retain it for future reference.

Image: A set of four Dr. Brown's Natural Flow Anti-Colic Options+ Narrow Baby Bottles, showcasing both clear and lavender color options.
Components
Each Dr. Brown's Natural Flow Anti-Colic Options+ Narrow Baby Bottle typically includes the following parts:
- Bottle (8 oz / 250ml)
- Level 1 Slow Flow Nipple
- Collar
- Vent Insert
- Vent Reservoir
- Travel Cap
- Cleaning Brush (for vent system)

Image: An exploded view of a Dr. Brown's bottle, illustrating each component for easy identification.
Setup
Initial Cleaning
- Disassemble all bottle components: nipple, collar, vent insert, vent reservoir, and bottle.
- Wash all parts thoroughly with warm, soapy water. Use the provided cleaning brush to clean the narrow openings of the vent insert and vent reservoir.
- Rinse all components completely.
- Sterilize all parts before first use. Methods include boiling for 5 minutes, using a steam sterilizer, or a dishwasher with a sterilize cycle (top rack only).
- Allow all parts to air dry completely.
Assembly
- Insert the vent reservoir into the bottle, ensuring it sits snugly at the bottom.
- Place the vent insert into the vent reservoir, aligning the opening with the bottle's neck.
- Place the nipple into the collar, pulling it through until it is securely seated.
- Screw the assembled collar and nipple onto the bottle, ensuring a tight seal to prevent leaks. Do not overtighten.
- Place the travel cap over the nipple and collar if storing or transporting.
Video: Official Dr. Brown's video demonstrating the assembly and benefits of the Anti-colic Options+ Baby Bottles.
Operating Instructions
Filling the Bottle
- Ensure the vent system is properly assembled inside the bottle.
- Fill the bottle with breast milk or formula to the desired measurement line. Do not fill above the maximum fill line indicated on the bottle to prevent leaks.
- Securely attach the nipple and collar assembly.
Feeding
- Always test the temperature of the milk or formula on your wrist before feeding your baby.
- Hold the bottle at an angle that keeps the nipple full of liquid, allowing the vent system to work effectively.
- Observe your baby for signs of comfort and proper latch. The breast-like nipple shape is designed to encourage a natural latch.

Image: A parent feeding a baby with a Dr. Brown's bottle, highlighting the natural nipple shape for comfortable feeding.
Vent System Functionality
The internal vent system channels air from the nipple collar through the vent reservoir to the back of the bottle, bypassing the milk. This prevents air from mixing with the milk, reducing oxidation and helping to maintain essential nutrients. It also creates a vacuum-free feeding experience, similar to breastfeeding, which can help reduce colic, burping, and gas.

Image: A cutaway diagram illustrating how the internal vent system directs air away from the milk, preventing air ingestion.
As your baby's feeding develops, the internal vent system can be removed. When the vent system is removed, the bottle provides a vacuum-free feeding experience with air venting through the nipple. This allows for continued use of the bottle as your baby grows.
Video: An animated demonstration of the Dr. Brown's Natural Flow Anti-Colic Options+ Baby Bottle, highlighting the vent system and its benefits.
Maintenance and Cleaning
Proper cleaning is crucial for hygiene and longevity of your bottles. Always clean all parts immediately after each use.
Daily Cleaning
- Disassemble all bottle components.
- Wash all parts in warm, soapy water. Use the small cleaning brush to thoroughly clean the vent insert and vent reservoir. Ensure all milk residue is removed from all parts, especially the vent system.
- Rinse all components thoroughly with clean water.
- Place all parts on a clean drying rack or towel to air dry completely.
Dishwasher Cleaning
- All bottle components are dishwasher safe (top rack only).
- Ensure small parts like nipples and vent components are placed in a dishwasher basket to prevent loss.
- Use a gentle cycle and allow to air dry or use a low-heat drying cycle.

Image: Dr. Brown's bottles and their parts arranged in a dishwasher's top rack, demonstrating dishwasher-safe cleaning. An inset shows manual cleaning with a brush.
Troubleshooting
Leaking
- Check Fill Line: Ensure the bottle is not filled above the maximum fill line.
- Proper Assembly: Verify all vent system components (vent insert, vent reservoir) are correctly assembled and seated.
- Tightness: Ensure the collar is screwed on tightly, but not overtightened, as this can also cause leaks.
- Nipple Condition: Inspect the nipple for any tears or damage that could cause leaks. Replace if necessary.
Baby Refusing Bottle or Difficulty Feeding
- Nipple Flow Rate: Ensure the nipple's flow rate is appropriate for your baby's age and feeding style. Dr. Brown's offers various nipple levels.
- Nipple Condition: Check the nipple for blockages or damage.
- Temperature: Confirm the milk or formula is at a comfortable temperature.
- Positioning: Experiment with different feeding positions to find what is most comfortable for your baby.
Increased Gas or Colic Symptoms
- Vent System: Ensure the internal vent system is correctly assembled and functioning. The vent is designed to reduce air ingestion.
- Nipple Latch: Check for a proper latch to minimize air intake during feeding.
- Nipple Flow: A nipple with too fast a flow can cause a baby to gulp air. Consider a slower flow nipple.
Specifications
| Product Name | Dr. Brown's Natural Flow Anti-Colic Options+ Narrow Baby Bottles |
| Model Number | DB316 |
| Capacity | 8 oz / 250ml |
| Nipple Type | Level 1 Slow Flow (Vented) |
| Material Composition | BPA Free Plastic and Silicone |
| Dishwasher Safe | Yes (Top Rack Only) |
| Product Dimensions | 2.76 x 3.15 x 3.15 inches |
| Item Weight | 7.1 ounces |
Warranty and Support
For warranty information, product support, or to purchase replacement parts, please visit the official Dr. Brown's website or contact their customer service department. Keep your proof of purchase for any warranty claims.
Official Website: www.drbrownsbaby.com







