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The recipe
Cooking instructions
Ingredients notes
This is a firm medium that keeps well and makes a good base for egg collecting. Wrap filled petri dishes and store at 4-- 14oC (they should keep for at least 6 weeks). Substitute molasses for the corn syrup if you prefer a dark medium, or add food coloring. This recipe makes about 60 6 x 2 cm plates.
Water | 2.25 | liters |
Agar | 88 | grams |
Light corn syrup | 350 | milliliters |
10% p-Hydroxy-benzoic acid methyl ester in 95% ethanol | 38 | milliliters |