MUELLER-HINTON Agar Typical Composition (g/litre) Meat infusion 2.0; casein hydrolysate 17.5; starch 1.5; agar-agar 13.0. Preparation and Storage Cat. No. 1.05437. MUELLER-HINTON Agar (500 g/5 kg) Usable up to the expiry date when stored dry and tightly closed at +15 to +25° C. Protect from light . After first opening of the bottle the content can be used up to the expiry date when stored dry and tightly closed at +15 to +25° C. Suspend 34.0 g/litre and autoclave (15 min at 121 °C), if required cool to 45-50 °C and add 5-10 % def inibrated blood, pour plates. pH: 7.4 ± 0.2 at 25 °C. Without blood, the plates are clear to opalescent and yellowish-brown. Cat. No. 1.10414.0001 Merckoplate MUELLER-HINTON Agar (20 plates, 20 ml each) Cat. No. 1.13405.0001 Merckoplate MUELLER-HINTON Agar (480 plates, 20 ml each) Ready-to-use Usable up to the expiry date when stored at +12 to+15° C. The plates are clear to opalescent and yellowish-brown