Reply to sacrilege:From halachichally speaking
The Rama:39 quotes an opinion that says one only has to wash his mouth out and
wash his hands after eating hard (aged) cheese (see above). One should not be rebuked for
relying on this opinion and not waiting.40 Some say to wait at least an hour.41 However,
many poskim are of the opinion that these opinions should not be relied upon and one
should wait six hours after eating hard cheese42 just as one does after eating meat.43 The
custom of some of the Sefardim is to wait only an hour,44 while other Sefardim do not
wait at all but wash their mouth out, eat something, and wash their hands from residue
(see above).45
42. Even if he wants to eat a meat dish afterwards (Ben Ish Chai Shlach 2:15, Chochmas Adom 40:12).
43. Pri Megadim M.Z. 89:4, Pri Chadash 16, Ben Ish Chai ibid, Shiurei Beracha 89:13, Chochmas Adom 40:13,
do not wait anything (Halichos Olom 7:pages 46-47 Shulchan Aruch Hamekutzar 4:page 252, but one still has to
wash out his mouth, eat something, and wash his hands, see above). According to this last view, one who used to wait
because he thought it was ossur not to wait, can start eating meat after dairy without waiting and there is no need for
The opinion of the Yad Yehuda58 according to a few poskim59 is that if the hard (aged)
cheese is melted by cooking it then one does not have to wait six hours after eating it
(before eating meat). Many do not accept this leniency.60 A spreadable Swiss cheese
even if it may be aged for longer than six months, is cooked to make it into a spread,
and one can rely on the Yad Yehuda since the cheese remains soft.
only pertains to cheese melted into food, whereas hard cheese melted onto food which
is not integrated to become part of another food remains subject to the above waiting
period.61 Therefore, one who eats hard cheese which is melted onto toast is required to
wait six hours.62
60. The opinion of Harav Elyashiv Shlita is if aged cheese is used on pizza (melted) then one has to wait six hours
(Hechsheiros page 280:footnote 121), Star-K (http://www.star-k.org/cons-faqs-status.htm), see Ben Ish Chai Shlach
the Yad Yehuda would make sense only according to the reason that the cheese is left in the mouth, but the reason of
taste lingering would apply even after it is melted. Refer to Ohr Yisroel 6:page 89, Halichos Shlomo Moadim page
383:footnote 15.
61. Opinion of Harav Yisroel Belsky Shlita as expressed in OU document X-120, and based on a personal
conversation.
Flatbush based on a discussion with Harav Golderg Shlita).