NaCl 5.85 g
KH2PO4 6.8 g
Glycerol 300 g (1.25g/ml = 240 ml)
NaOH (1M) 5.6 ml
dH2O 1 L
Autoclave 15 min liquid cycle, then add 3 ml MgSO4 (.1 M).
Store at room temp.