The tea egg marinade can be used repeatedly, but pay attention to the following points:

1. The marinade should not be kept for too long, preferably not more than 2-3 days.

2. Every time before using the brine soup, boil it and then cool it down before using it. This can avoid bacterial contamination of the marinade soup.

3. Each time you use the broth, add new seasonings and ingredients as needed to keep the flavor fresh.

4. If the surface of the marinade appears fuzzy or cloudy, it may be bacterial contamination and should be discarded promptly.