There are many issues surounding the risk factors of peanut oil/chinese resturants , and nutella spread.
The first ,
Refined peanut oil ( as opposed to pure groundnunt oil) is considered an extremely low risk, due to the high temp , that changes the protein structure of the peanut .
Having taken medical advice , I am happy for my highly allergic son to eat foods cooked in refined peanut oil.
That said, I would not consider nutella as a food which would enter our own 'comfort zone'.
My son has grown out of his tree nut allergies, but remains peanut allergic ( as well as many other foods BTW) , but the risk involved in nutella spread, is not the refined peanut oil , but the risk of cross contamination from the tree nuts.
Nuts are often all processed and bagged on the same lines before being passed on to other manufactuers. This means that all nuts are to some extent cross contaminated, unless you buy them from the shell and eat them direct.
Which is something that we have done on occasion.
Peanut is one of the few foods banned from our house, but tree nuts in shells are welcome.
Chinese resturants are not on our list because of the use of peanuts/oil and other food allergies.
cooking pots and tools are not cleaned between each dish made, so are a high risk for cross contamintion, even if you ask for foods to be removed from a dish.
Indian resturants, well, there are peanut allergic people who have recieved safe meals, but the risk, for our son at the moment IMO is high enough for us to avoid.
Foods bought by catering companys for indian resturants are not as safe as we think.
Recently almond powder , often used in indian cooking, can sometimes contain peanut flour, as a bulking product, as peanuts are cheaper.
Then of course, the risk of cross contamination of tree nuts in the restuarant is still high.
There are a number of deaths in young adults that have been the result of an indian meals, that were supposedly nut free.
For us our meals eaten out of the home are fish and chips ( at certain places locally) pizza express, and big mack and burger king. sadly nothing exciting.
sarah