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Why are tinned tomatoes lined with white plastic? |
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#1 |
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Guest
Join Date: Jul 2007
Posts: 10,516
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Why are tinned tomatoes lined with white plastic?
I've often wondered why tomato tins are the only tins which seem to have a white coating inside them. I presume it has something to do with the acidity and it's effect on coming into contact with aluminium. Is this right? If so, is it safe?
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#2 |
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Forum Member
Join Date: Oct 2008
Location: the land of the hobbit.
Posts: 8,839
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the tins of toms i have bought have not yet.. had white plastic coating on the can???
but yes it is to stop the rust from occurring in the can.. totally safe.. |
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#3 |
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Forum Member
Join Date: Jun 2007
Posts: 2,943
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I' ve noticed that tins of sweetcorn have white plastic on them too.
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#4 |
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Forum Member
Join Date: Aug 2008
Location: Up North
Posts: 58,791
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If you leave products like tomatoes and pineapple in the tins then the tins react with the acid or other natural chemicals.
I always transfer pineapple to a plastic tub because they started to get what seemed like iron filings growing on them. |
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#5 |
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Forum Member
Join Date: Oct 2008
Location: the land of the hobbit.
Posts: 8,839
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Quote:
I' ve noticed that tins of sweetcorn have white plastic on them too.
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#6 |
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Forum Member
Join Date: Jun 2006
Location: South Devon
Posts: 1,838
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Maybe because tomatoes can be a bit acidic!
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#7 |
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Forum Member
Join Date: Mar 2010
Location: Leicestershire
Posts: 1,141
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Tomatos are acidic and they would corrode the tin can as they would react with it and it would ruin the tinned tomatoes and make them inedible.
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#8 |
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Forum Member
Join Date: Jan 2007
Posts: 4,714
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Quote:
totally safe..
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