When to Switch to Dr Brown's Level 4 Teat for Older Babies
By Dr Browns | Published: 2026-10-27
Category: Tips & Care
Learn when to move your baby up to Dr Brown's Level 4 teat, the fastest flow for babies 9 months and older. Get clear feeding tips and signs your older baby needs a higher flow rate.
Quick answer
Switch to Dr Brown's Level 4 teat when your baby is 9 months or older and shows signs of frustration with slower flow, such as longer feeding times or fussiness at the bottle.
Why flow rate matters for older babies
As babies grow, their sucking strength and feeding efficiency increase. A teat that worked at 6 months may now feel too slow, leading to impatience, longer feeds, or even reduced milk intake. Moving to a faster flow helps match your baby's developmental stage and keeps feeding comfortable for both of you.
Dr Brown's Level 4 teat is designed as the fastest flow in the Options+ narrow neck range. It works with the internal vent system to reduce air intake, even at higher flow rates, which can help prevent gas and discomfort.
Frequently asked questions
- What are the signs my baby needs a faster teat flow?
- Look for these cues: your baby takes longer than 20 minutes to finish a bottle, seems frustrated or fussy during feeds, chews or bites the teat, or starts pulling away and crying while milk is still in the bottle. These suggest the current flow is too slow.
- At what age should I switch to Level 4?
- Dr Brown's suggests Level 4 for babies 9 months and older. However, every baby develops at their own pace. Some may be ready a bit earlier if they show strong sucking and clear impatience with Level 3. Always watch your baby's cues rather than relying solely on age.
- How do I transition to Level 4 without upsetting my baby?
- Start by offering the Level 4 teat for one or two feeds per day, while keeping the old level for others. This gives your baby time to adjust to the faster flow. If you see gulping, coughing, or milk leaking from the mouth, the flow may be too fast—try alternating back to the slower teat for a few more days. Expect a short adjustment period; most babies adapt within a few days.
- Can I use Level 4 with Dr Brown's anti-colic system?
- Yes. The Level 4 teat is designed to work with Dr Brown's internal vent system, which helps reduce air swallowing even at higher flow rates. Make sure the vent is properly assembled and cleaned to maintain its anti-colic benefits.
- What if my baby still seems frustrated after switching?
- If your baby continues to show feeding frustration after a few days on Level 4, check that the teat is not blocked and that the bottle vent is clean. Also consider whether your baby might be ready for a sippy cup or straw cup instead, as some older babies prefer a different drinking method. If frustration persists, consult your pediatrician to rule out other feeding issues.
Product facts
- Dr Brown's Narrow Neck Options+ Level 4 Teats: Dr Brown's Level 4 Narrow Teat is the fastest flow teat for babies 9m+, made of super-soft, high-grade silicone, and fits all Dr Brown's Narrow bottles. This means your older baby gets a consistent, predictable flow that keeps up with their natural feeding pace, while the soft silicone feels familiar and comfortable.
Dr Brown's Narrow Neck Options+ Level 4 Teats
