Should you decide to freeze some of your crop, you will discover that there are a number of ways that this can be done, ranging from using dry ice to par boiling prior to freezing. Having tried many of the techniques available, I now have two ways of freezing chillies depending on how I will later use them.
A great way to freeze chillies that will later be included in dishes such as curries, is to first blend them to a puree. After they have been blended, simply scoop the mixture into the compartments of an ice-cube tray and freeze. When you need to use them, just add one of the cubes to the dish you are cooking, you do not need to defrost as they will melt during the cooking process.
If, on the other hand, you like to add whole or chopped fruits to a dish such as salads, you can simply cut off the stalk and calyx and freeze them whole.There's no need to put them in bags, as the air that's retained in the bags often leads to the chillies becoming mushy after they've been defrosted. If freezing chillies in this way, however, it is better to chop or slice them while they are still frozen.