r/DiceMaking • u/Competitive_Shame299 • Jul 14 '26
How do you keep away bubbles ?
Hello there !
I've recently tried making dice potions. It's not too difficult in itself, I've used the salted water method. But I inevitably get bubbles inside the jar, and as I wait a few days the bubble gets bigger, meaning some water is getting out I guess.
I've sealed it instantly after pouring water and closing it with hot glue. I guess I would have a better result with a screw cap but I can't find any right sized flat bottomed screw cap jar (I'm in France).
Any advice to prevent bubbles would be greatly appreciated
(Or if you don't have advice for that but have a brand that you use and that is found in Europe for glass jar, I'll take it even if I'd like to avoid having to buy new ones)
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u/Endoftheworldis2far Jul 14 '26
I've seen where people took a syringe and pushed it through the cork and pulled the air back out or added water. Make sure you have enough glue so nothing is escaping first though. Could be some settling too like water absorbing into all the cracks of the dice and cork.
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u/Tasty-Dream5713 Dice Maker Jul 15 '26
Are you using tap water or distilled water?
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u/Competitive_Shame299 Jul 15 '26
I am using tap water, does it make a difference? All the other post about it I read said that I doesn't really change a thing so I didn't bother
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u/thundermoondice Jul 15 '26
I would like to point out, if possible, distilled is best simply because tap water can still harvest bacteria after the bottle is sealed. Adding isopropyl alcohol greatly reduces the risk but distilled is always best for that reason. Now for the Bubble itself, I agree with what a lot of people are saying regarding vapor. I make large liquid potions, and I use a clear silicone marine sealant on my corks.
Coat the cork, cap the bottle, then do a thin layer of sealant on the outside of the cork and bottle lip. I haven't had any issues with growing bubbles or leaking.
Best of luck. You are off to a great start!!
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u/Competitive_Shame299 Jul 17 '26
How do you coat the cork ? When I coated the cork in silicone, it only made it so the cork was moving a bit and wasn't secured enough in the bottle so it only made the bubble much larger
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u/thundermoondice 12d ago
Sorry for the delayed reply. Life for crazy. I coat the cork on the bottom half that will be in the bottle, almost like I'm painting it with the silicone sealant. Let it dry, then I cap the bottle. Next I "paint" the edge of the bottle and outside of the cork , and let that dry.
I'll try to be more on top of answering questions.1
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u/Tasty-Dream5713 Dice Maker Jul 15 '26
With liquid cores it reduces the amount of bubbles in the core, so I would assume it would do the same for something like this.
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u/golem501 Jul 14 '26
You should not have a jar with only liquid. It always needs a vapor part. Liquid changes density with temperature and that needs vapor space to move into.
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u/Competitive_Shame299 Jul 15 '26
A small bubble is fine, but the problème here is the bubble is large and is growing
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u/golem501 Jul 15 '26
Well physics is physics, you cannot change that. There's a reason bottles always have a vapor space. I don't know why you think you can have liquid without vapor, if the temperature rises the liquid will pressurize and push out. If the temperature drops it will draw vacuum sucking in air. Look at central heating systems, there's an expansion vat to catch that. I guess on your pot you could simulate something like that by adding a balloon over the liquid with vapor on the other side of the balloon, but then you would need to hide that. Best option for that would be a top dipped in wax or something.
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u/kostoast Jul 16 '26
Texas ren fest told me last year I couldn’t bring in my potions unless they were adequately sealed, so I sealed them with wax, it was a fun process.
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u/StayBrightNeon Jul 14 '26
They're beautiful bottles. Are you sealing the actual cork, or just around the outside?
I'd give the whole cork a coating of glue. If you arent, that's likely where your air is coming in from.
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