Secret recipe. Maybe new brands don't use your formula, but they can make a new one by improving your taste. They are better at supplementing the quality of products in all aspects, rather than blindly pursuing products. Such as equipment, environment, services, etc. Or I suggest that there are more and more storefronts, and the production capacity will be insufficient and the quality will fluctuate in the later stage. I suggest to find a processing agent (with complete certificates) nationwide, with raw material 1.2 for A processing, raw material 3.4 for B processing, raw material 4.5.6 for C processing, core raw material 7 for its own processing factory, and raw material 8 for D processing, and then sign a confidentiality agreement uniformly, and each product processed by formula has a name and goods.