Here is what the Star-K is saying about checking strawberries:
Taken from http://www.star-k.org/cons-appr-vegetables.htm
1. Fill basin with water and some dishwashing liquid* or special strawberry wash (such as Tsunami 100).
2. Soak strawberries in soapy water.
3. Wash strawberries under a stream of water.
4. Strawberries may now be used.
Click here: http://www.star-k.org/cons-appr-vegetables-videos10.htm to watch our strawberry bug video.
Click here: http://www.star-k.org/cons-appr-vegetables-videos-list.htm to see a list of all our insect checking videos.