Good discussion that is making me rethink my use of plastic bottles. I did find this info useful. What concerns me most is that most of the tanks we use are made from #7 Polycarbonate! I may have to breakdown and buy some of those expensive Clean tanks!
What plastic is safe for bottles these days? #1,#2,#3,#4,#5,#6,#7?
What is safe plastic? The safest appear to be #2, #4, #5.
#7 is to be avoided due to leaching of bisphenol A (BPA). Also avoid #1 found with most bottled water. Avoid #3 and #6. More on these below.
As for BPA bottles, the rule of thumb is if the plastic is cloudy, not crystal clear, and you can squeeze it relatively easy, then it probably does not contain BPA. If the plastic is solid and crystal clear than it is usually polycarbonate - #7 and not safe.
Here's a breakdown.
#1 PETE or PET (NOT SAFE due to antimony leaching)
Polyethylene terephthalate
#2 HDPE (SAFE)
High density polyethylene
#3 PVC or V (NOT SAFE due to phthalates)
Polyvinyl chloride
#4 LDPE (SAFE)
Low density polyethylene
#5 PP (SAFE)
Polypropylene
#6 PS (NOT SAFE for hot liquids, alcohol or fatty foods due to styrene)
Polystyrene
#7 plastics including polycarbonates that contain bisphenol A (BPA) (NOT SAFE due to BPA)
Polycarbonate
What plastic is safe for bottles these days? #1,#2,#3,#4,#5,#6,#7?
What is safe plastic? The safest appear to be #2, #4, #5.
#7 is to be avoided due to leaching of bisphenol A (BPA). Also avoid #1 found with most bottled water. Avoid #3 and #6. More on these below.
As for BPA bottles, the rule of thumb is if the plastic is cloudy, not crystal clear, and you can squeeze it relatively easy, then it probably does not contain BPA. If the plastic is solid and crystal clear than it is usually polycarbonate - #7 and not safe.
Here's a breakdown.
#1 PETE or PET (NOT SAFE due to antimony leaching)
Polyethylene terephthalate
#2 HDPE (SAFE)
High density polyethylene
#3 PVC or V (NOT SAFE due to phthalates)
Polyvinyl chloride
#4 LDPE (SAFE)
Low density polyethylene
#5 PP (SAFE)
Polypropylene
#6 PS (NOT SAFE for hot liquids, alcohol or fatty foods due to styrene)
Polystyrene
#7 plastics including polycarbonates that contain bisphenol A (BPA) (NOT SAFE due to BPA)
Polycarbonate
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