วิธีการเตรียม:
1. Suspend 65 g of the powder in 1 L of purified water. Mix thoroughly.
2. Heat the agar media with frequent agitation and boil for 1 minute to completely dissolve the powder. Avoid overheating which could cause a softer medium.
3. Autoclave at 121°C for 15 minutes.
4. Test samples of the finished product for performance using stable, typical control cultures.