"Janet Boss" wrote in message
...
In article 9Ly3k.4036$1x.3426@trndny06,
"Phil P." wrote:


Baking pans and cookie trays are usually made of aluminum since they go
into
an oven. I don't think urine is affected by plastic since most syringes
used
in cystocentesis and urine sample containers are made of plastic.

That's why I was confused. Why not just use the empty plastic tray that
is with the box instead of a cookie sheet?

I guess you could. I just find it easier to pour the urine into a jar from a
cookie pan.