adding 'about to go off ingredeints' to things - how long do they last?

[mumblecrumble]

If I make rice pudding with milk on the date of its use by date - does that mean the rice pudding will go off sooner?

If I use old yogrut in a cake? etc etc?

I have never found that such things would go off quicker.

no evidence for this but my view is that if you cook with them you probably kill off any bacteria etc that might be lurking so the pudding/cake will just go off as it normally would.

and a 'use by' date doesn't mean much - my milk often doesn't go off for a week after the date. no way would i throw it out because of the date stamp.

I agree scroobius , I assess milk by smell and taste, not by its date. Same with yoghurt and just about everything else.

Yes, I assess milk by smell, taste etc... just thinking that if it is about to turn [rather than date]... hmmmm

Make the rice pudding anyway, OP!

No, they won't go off sooner because by cooking you will have killed the bacteria/moulds that drive the "going off process".

PS: we came back from Christmas to find an unopened bottle of fresh milk that had been out of date for 5 days. I decanter it in a jug and tasted both the first part and the last: it was fine, so used it for a soup the same day, together with some old (homemade) dry bread. It was ok and the soup v good.