Filter into a flask. The covered funnel is then transferred to the glove box. After everything has been sterilised by spraying as described above, carefully remove the foil top from one of the bottles of medium, placing the top, top surface up, on the floor of the box. The bleach solution will prevent contamination of the inside of the foil top and it can be replaced on the bottle after sowing. The foil will have turned down edges and corners from being secured to the bottle during and since sterilising.
Capsules sometimes abort before they are ripe.
These can often be salvaged. Also, some seeds will not germinate after being sterilised but will germinate if sown from green pod. Give good 10 minutes in the bleach. Germination often occurs quite quickly so that tiny green protocorms can be seen on top of the medium. Some seed takes a long time to germinate, so do not be too hasty to throw out seed that does this.