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Weird Cloudy Streaks in Glass?


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So some background, we have been using these bottles from the same supplier for 5 years with no problem and I have never seen this issue in my history of 10 years of distilled spirits production with any glass. We use compressed air to blow out bottles before fill and we are using a timed pump filler to fill. 

Hard to get a picture of it but it looks like condensate marks or stretch marks in the glass itself. I dumped it and tried wiping away the residue on the outside and inside and it doesn't come up. In the same pallet of glass this issue only appeared in the 100 proof tincture spirit we produce and the 80 proof vodka that went into the same bottles didn't have this issue. I am stumped honestly. Does anyone have any idea what this is?

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PXL_20210705_131846261.jpg

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  • 4 months later...
On 7/5/2021 at 6:41 AM, McClintockDistilling said:

So some background, we have been using these bottles from the same supplier for 5 years with no problem and I have never seen this issue in my history of 10 years of distilled spirits production with any glass. We use compressed air to blow out bottles before fill and we are using a timed pump filler to fill. 

Hard to get a picture of it but it looks like condensate marks or stretch marks in the glass itself. I dumped it and tried wiping away the residue on the outside and inside and it doesn't come up. In the same pallet of glass this issue only appeared in the 100 proof tincture spirit we produce and the 80 proof vodka that went into the same bottles didn't have this issue. I am stumped honestly. Does anyone have any idea what this is?

PXL_20210705_131858301.jpg

PXL_20210705_131846261.jpg

PXL_20210705_132114361.jpg

Good morning,

Have you ever find the cause of these marks on your bottles?  I'm wondering if it is some oil residue on some of your bottles?

 

Sincerely

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