Is there a limit to how much flavor emulsion I can put in my formulation?

Based on real-world formulation experience, approximately 3% by weight represents a practical upper boundary for most systems, though the right ceiling for any given application depends on the flavor's potency, the product matrix, and your sensory targets. Reaching that level is uncommon — most products land well below it — but it's useful to know the range when troubleshooting a formula that needs more intensity than standard rates are delivering. As always, validate at your final dose through the full production process before scaling.