How to make bitter gourd less bitter

This simple step is just to reduce the bitterness and not to eliminate the bitterness totally in bitter gourd. (I don’t think you can)

After removing the seed, slice the bitter gourd thinly, if you need to slice the bitter gourd for cooking anyway, for example omelette.  Otherwise, cutting to chucks is fine, but not so effective. After cutting, toss it with a lot of salt.  Leave it for 5 minutes, rinse thoroughly and then soak in plain water for 10 mins.

It will be best if you use filtered water as they will be absorbed back into the bitter gourd.  Some filter even claimed to reduce the size of water molecules clusters and to allow easy absorption.