Why were kessels typical in the Operational Barbarossa?

Question

And how did the Germans deal with the POWs as they advance towards their next objective.

Oh, kessel is another word for cauldron or encirclement (of the Russians for this instance)

Answer 1

" kessel " ( pocket ) was the word used by the German soldier to indicate a area where a force ( German or Russian ) was surrounded.
They used it because in a by a way of speaking that area was boiling and under presser like a real kessel ( German for a cauldron )
That the most of the kessels where at the Russian front was because the immense space of the country, also no one of the fighting troops that where surrounded wouldn't stop thy preferred to fight until the end .one of the best know is the kessel of cherkassy or the Ruhr kessel

the prisoners where simple send to the back by a number soldiers as small as possible

Answer 2

Operation Barbarossa was an example of Kesselschlacht (cauldron battle) fighting.
Its fundamental is the truism that modern firepower has made a frontal assault suicidal. Therefore, you must try to work your way round and through an enemy's weak spots so that he will be forced to be the attacker to try to break out. Hence the great battles of encirclement in 1941.
As for POWs, the other answerer is correct.

Answer 3

Don't know what kessels are, but the Germans had a great policy regarding POWs. They didn't bother with them! The majority of Russian soldiers were killed. Any that were taken prisoner were transported to concentration and death camps such as Auschwitz.

Answer 4

You may want to rewrite or explain this question further - since few people even know what a "kessel" is. You're not talking of the Kessel (or Keverborg Castle) are you?
p.s. Thanks General de Witte for making that clear.