And I guess it goes without saying - label the filled bags very clearly, and don't let them get anywhere near any bags with food in them.
I think if we had one in our household, my wife would be very uncomfortable if I used it with chemicals. I would need to buy one of my own.
I could probably convince my wife to let me do thatThat’s exactly what I plan. Just press as much air out as I can, then use the sealer function.
That’s exactly what I plan. Just press as much air out as I can, then use the sealer function.
The vacuum bags may also be good for keeping out moisture, and if they are fairly strong, may be resistant to physical damage, so they would be worth considering for those reasons.
I've not tried it, but it sounds like an interesting solution. One concern would be the material used for the pouches; something like PP may not work for the longer term (beyond a few weeks) due to oxygen permeability issues.Anyone tried that and had good experience with extending the shelf life of the mixed solution?
I've not tried it, but it sounds like an interesting solution. One concern would be the material used for the pouches; something like PP may not work for the longer term (beyond a few weeks) due to oxygen permeability issues.
It´s these bags here that you can boil with, so stronger than the regular ones: https://www.sousvidetools.com/eu/va...m-boilable-chamber-vacuum-pouches-pack-of-200
It´s a mix of PE and PA. "Protected by a fully airtight polyamide (PA) outer shell” Looks promising I think but I dont know if “fully airtight” in this context is the same as no oxygen will get in over time
They look interesting for sure. The PE lining should create a fairly good oxygen barrier. I say 'fairly good' because it's evidently thinner than the wall of a typical PE bottle, and we know those are 'safe' on a reasonably long term.It´s these bags here that you can boil with, so stronger than the regular ones: https://www.sousvidetools.com/eu/va...m-boilable-chamber-vacuum-pouches-pack-of-200
It´s a mix of PE and PA. "Protected by a fully airtight polyamide (PA) outer shell” Looks promising I think but I dont know if “fully airtight” in this context is the same as no oxygen will get in over time
The main problem is simply how to get the vacuum pump to stop sucking air and start to seal before it starts to suck up darkroom chemicals
They look interesting for sure. The PE lining should create a fairly good oxygen barrier. I say 'fairly good' because it's evidently thinner than the wall of a typical PE bottle, and we know those are 'safe' on a reasonably long term.
With C41 developer I find it works quite well to just monitor the color. I always mix the stuff up to working strength and then store it in appropriate containers; in my case this is mostly glass bottles. In that case, the developer appears to be stable for at least 1-2 years. On occasion I've tried to keep some developer in plastic (I think it was HDPE) containers as well. Interestingly, the color difference after a few months was very easy to spot, with the HDPE-stored developer being a shade darker than the developer stored in glass - which didn't seem to have changed at all. So you could keep a 'reference bottle' around.
Welcome to Photrio.
Those look interesting, but I do find it frustrating trying to figure out what size version you would need for any particular volume of chemical.
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