I'll stick to my SS bottles. 
Just for fun, try googling for an MSDS for Stainless Steel:
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II. HAZARDOUS INGREDIENTSIngredient          CAS #                 Form                                                              OSHA/PEL (mg/m3)        ACGIH/TLV (mg/m3)
Aluminum           7429-90-5            Dust, fumes                                                    -                                       10.00, 5.00
Carbon                 1333-86-4            As carbon black                                              3.50                                    3.50
Chromium           7440-47-3                                                                                    1.00                                    .50
Cobalt                  7440-48-4                                                                                    .10                                      .10
Copper                 7440-50-8            Dust, fumes                                                    1.00, .10                             1.00, .20
Iron                      1309-37-1            PEL-iron, oxide fumes, TLV-as Fe                10.00                                  5.00
Manganese          7439-96-5            Dust, fumes                                                    5.00, --                               5.00, 1.00
Molybdenum       7439-98-7            Insoluble compound                                       15.00                                  10.00
Nickel                  7440-02-0                                                                                    1.00                                    1.00
Niobium              7440-03-1                                                                                    5.00                                    5.00
Phosphor             7723-14-0            Yellow                                                            .10                                      .10
Silicon                 7440-21-3            Respirable dust                                               --                                        5.00
Sulfur                  7446-09-5            As sulfur dioxide                                            --                                        5.00
Tin                       7440-31-5                                                                                    2.00                                    2.00
Titanium              13463-67-7          As titanium dioxide                                        15.00                                  5.00
Tungsten              7440-33-7            Insoluble compound                                       --                                        5.00
Vanadium            1314-62-1            Dust, fumes (as vanadium pentoxide)            .50, .10                               .05, .05
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V. HEALTH HAZARD INFORMATIONAcute Effects: Welding and high temperature cutting may produce dust and fumes. 
Short-term exposure may cause nausea, fever, irritation of eyes, nose, throat, skin; metallic taste.Chronic Effects: Long-term exposure to welding fumes, gases or dust may result in 
skin sensitization, neurological damage and respiratory disease.Effects of Exposure: 
Inhalation: Inhalation of excessive fume or dust concentrations may result in 
respiratory tract irritation.
Eyes: Mechanical irritation may result from an accumulation of dust particles in the eye.
Skin: Some skin irritation may result form exposure to dust.
Ingestion: 
Some constituents may be harmful if swallowed.Symptoms of Exposure: 
Metallic taste, fever, loss of consciousness due to welding gases.
...
Carcinogenicity: Chromium, nickel and chromium-cobalt alloys have been identified by the international agency for research on cancer as potential cancer-causing agents....