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Questions in Tevillas Keilim

May I ask the following Shales re Tevillas Keilim:

The p`sak of R Moshe Feinstein re `Toasters ` is well known and many authorities argue with him. I was wondering what the Rovs opinion is on the requirement to toivel them.
Additionally, what is the halocho re regular kettles to heart up water. Surely acc to the above, there is no need to toivel them as they also only enhance the water (like the bread) and do not make it into an `edible` item. Undoubtedly, cold water is fit for consumption, too!

Glazed China-ware
According to some authorities, the glazing layer which is currently used with most manufacturers is actually not made out of real glass but it is a processed material which is not genuine glass based. Consequently, most China-ware would not need any tevillah at all (and a Berocho would be levatollo)
I wanted to know the Rovs opinion on this. Many thanks


The chiddush of the Igros Moshe is due to the fact that the toaster is considered something that does not make a significant change in the bread. The Rav is of the opinion that this too is a significant change. However being that the tevila may ruin it, the chiyuv to be tovel is questionable. If tevila is not possible, one should have it taken apart and reassembled by a Jew or sell it to a non Jew and borrow it back from him.

Although cold water is fit for consumption, cooking it creates a very significant change, as hot water is used for many varied purposes cold water is not suitable for. Hence, water cooking apparatus is certainly chayav in tevila according to all opinions, including Igros Moshe. This is explicit in the Gemara Avodah Zara 75b towards the bottom of the amud. If tevila is not possible, the above would apply.

Glazed chinaware is a machlokes if tevila is required, even when the coating is from glass. The reason being that it is a very thin layer and batel to the kli, according to some poskim. The Aruch Hashulchan [Y:D 120:29] holds that a coating of glass requires tevila, and based on this adds that the minhag became to be tovel porcelain and other keilim that seem to be coated in glass even if they are in fact not, because of the difficulty to differentiate between the two. The same would be true in our case. In any case no bracha should be made on any glazed utensil, whether with glass or other materials.

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