**You can gently influence her behavior, but at six months you shouldn’t expect her to understand and reliably follow “don’t blow raspberries with food in your mouth.”** She can learn from repeated interactions, but understanding a rule and controlling herself consistently are still developing.

Blowing raspberries is normal at this age—the CDC actually lists it as a [six-month developmental milestone](https://www.cdc.gov/act-early/milestones/6-months.html). With solids, she’s also discovering new tastes, textures, and what her mouth can do.

I wouldn’t make an issue of it. A practical approach is to:

- Respond calmly and matter-of-factly; avoid making the food spraying an entertaining game.
- Pause briefly, let her finish what’s in her mouth, then offer the next small spoonful when she’s ready.
- Use a gentle, consistent phrase such as “Let’s swallow first,” without expecting immediate obedience.
- Watch for fullness cues. If she closes her mouth, turns away, or pushes food away, stop offering food. These are [recognized signs of fullness](https://www.cdc.gov/infant-toddler-nutrition/mealtime/signs-your-child-is-hungry-or-full.html); raspberries alone don’t necessarily mean she’s finished.

Treat the pause as part of feeding at her pace, rather than a punishment or withholding food until she “behaves.” For infants, the American Academy of Pediatrics recommends [positive guidance and redirection](https://www.healthychildren.org/English/family-life/family-dynamics/communication-discipline/Pages/Disciplining-Your-Child.aspx).

For now, a bib and a washable feeding area are likely to accomplish more than correction. The useful lesson is a calm, pleasant feeding routine; tidier table manners can come later.