milk bottle material for UV sterilizer

Is it true that we can only use PPSU milk bottle material for UV sterilizer? How about -PP material milk bottle -silicone teat

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My Philips avent PP bottles n accompanying teats all turn yellowish after awhile! I haven’t read that this yellowing would have any harmful effects on baby so should be ok?

6y ago

Sure! Anyway, the bottles started turning yellow before my CL was even gone, so less than a month?