The jar is glass and the lid is metal, there is no internal anti-tamper seal just an external shrink wrap around the cap and neck of the bottle. There is no internal gasket in the lid so the "seal" when closing is ineffective metal on glass and the lid does not fully tighten but jumps thread on trying to tighten it. On cutting of the shrink wrap the lid was loose so there was no seal against gas or condensation contamination. I did not experience any increase of stomach acid with these and tried over 8 of them in one go. Food whose taste used to repeat on me for 12 hours or more still did with no discernible added acid reflux taste/feel.
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They are good
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Good thanks
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Works for me!
Verified purchase: Yes | Condition: New
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