REALLY ignorant question: where shaving soap comes in its own bowl (as in those sold by Trumper -- http://www.trumpers.com/product_detail.cfm?ProductID=111547320), does one simply need to add water or a wet brush, mix and apply?

In other words, does the soap need to be extracted from the bowl or any other preparation before mixing a lather?

Also, after use, does the bowl or soap need to be cleaned to some extent or can you just replace the lid until the next time?

Sincerest thanks for any help.