First take a bowl full of clean water and add the mushrooms. Do not soak it immediately rinse it.
Rub the top well to remove dirt.
Now transfer the mushrooms to a plate. See the water how dirty it is, pour it and change water and rinse again.
Rinse and change water - repeat this for 2-3 times at least or until the rinsed water is clean like shown here.
Now add it to a strainer.
Wipe off with a cloth to remove extra moisture.
Now mushrooms are clean.
Now place few mushrooms on a chopping board then trim the edge of the stem part.
Discard it.
Keep the head part facing down and chop into slices. Cut each mushroom into 3-4 slices.
Repeat to finish.
Mushrooms are cleaned and cut ready to cook.