Kashering by Pouring
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Question
Hello, esteemed Rabbi, Regarding kashering by pouring from a primary vessel, I would like to know the exact method of this form of kashering. Let me explain my dilemma: let's take, for example, a metal work surface that has become non-kosher. When I pour boiling water from an electric kettle onto the surface, a stream with a diameter of about two centimeters is formed. My question is: is only this area of the surface where the stream of water hit considered kashered, and not the other areas where the water spread (since pouring does not help as the water has already spread, as explained in the RAA in OH, 318, section 10, where there is a difference between pouring on the spice itself and pouring on the side where the water spreads and reaches the spice), or is there no distinction between the first hit of the stream and the subsequent spreading of the water, and it is said that the entire surface that received water is kashered by pouring from a primary vessel according to the law? With respect and thanks
Answer
Hello,
Indeed, you need to pour part by part so that the stream of water reaches the entire surface.
You can slowly pour 'row' by 'row' on the surface.
You can also use actual boiling, which will help in kashering.
For large surfaces that are difficult to kasher using these methods, you can take a stone heated in fire, pour boiling water on the surface, and move the stone across the entire surface, thus the stone will boil the water on the surface, which will help as actual boiling.