I find it interesting that we in Canada actually started getting stock availability again for X-Tol sooner than B&H did.
B&H was still out of stock last week (IIRC). They have it back in stock today, although it seems to be 30 - 40% more expensive than when it went out of stock weeks or months ago.
After currency exchange, it looks like it is cheaper at Beau Photo than at B&H.
How do you store the unmixed xtol? It has an expiration / best before date that prevents me from stockpiling more.
I don’t know that I have ever seen a best before date on any packaging. I was always of the belief that if stored in a cool, consistent and dark place, powered chemistry lasts for quite a while.I had never noticed an expiry date( Kodak's actual words so not "a best before" phrase) before either but I may just not have looked for one. However my packet bought as I recall in about March 2019 states an expiry date of April 2021.
I then checked my Microphen from Ilford which is a two pack powder as well and I cannot find any expiry date on this.
I must admit that my belief like yours was that powdered developer unopened in sealed packs has a near indefinite shelf life but the phrase "expiry date" and not "best before" does seem rather definite. It then begs the question: Is this a date by which the powders must be mixed into liquid stock or does it indicate that the clock is ticking all the time and the expiry date is that upon which Xtol ceases to work properly whether in stock form or not?
Does any other long term Xtol users here know for definite that an expiry date is a relatively new addition or has always been there?
Thanks
pentaxuser
How do you store the unmixed xtol? It has an expiration / best before date that prevents me from stockpiling more.
OK but how much better if we can decide exactly how to interpret the "expiry date" A lot hinges on whether, as I said, the clock ticks inexorably from the date applied at the packaging stage or does this refer to the date of mixing. If it is from the date of packaging then the question is: Is there something in the powder ingredients that causes deterioration to a fixed point in the future when it has expired or can we rely on the existing consensus that if powder chemicals are properly sealed then there shelf life is as near indefinite as to not matter?pentaxuser - my bags of xtol are the same, with expiration dates in 2022 I think. I'll probably not be able to make use of all it before it goes, but we'll see when the time comes.
Speaking of expiry dates, my old bottle of Tmax developer has the expiry date printed on the bottle. The new packaging for Tmax developer has no expiration date. Don't know why.OK but how much better if we can decide exactly how to interpret the "expiry date" ....
I suppose the simple answer is to ask KA but I have no idea how to do this. Can anyone who has asked this kind of question of KA say how clear its answers are?
The best marketing move Kodak could (and should) make, would be to offer their powder chemistry in tin cans, or even in glass bottles. Ok, would be 1$ more expensive, but well worth it on so many levels, including the customer experience.
I would also really like to see 1l return. I HATE mixing these giant 5l packets.
No, not really. That is a bad idea gone very very wrong. Do you really think that the people that do the R&D and production of photochemicals are really so stupid that they did NOT look into that and other ways of packaging? It is really easy to hide behind a computer and Monday morning quarterback. Work as an engineer or chemist for a decade and then you will understand what is wrong with your complaining.
I just checked and you're right Matt. On the old packaging they inkjet printed the expiry directly on the bottle (left), while the new packaging has the expiration pre-printed as part of the label. I imagine deleting the production line printer is a cost savings for them.And as for the T-Max developer bottles, I bet there is a hard to read date there somewhere
As X-Tol comes in two separate bags, five bags won't cut it.Solution: Get StopLossBagTM from www.StopLossBags.com and then you can seal off with no air the five liters in five one liter bags.
The expiry date on powder packages most likely reflects the durability of the packaging, taking into account what happens to packages in the light and heat on a store shelf.
I have had very old plastic packages get brittle.
Hmmm. Aren't you the one you says follow the manufacturer's directions, and PE's advice? Rule numero uno is you can't reliably divide powder chem mixtures into smaller amounts.
Makes sense, Matt and that's certainly much more encouraging, Matt. I must admit that I had assumed that all packs of Xtol were like mine so sitting in a dark cupboard at between about 17 and maybe max 24C, with nothing else even touching the packs. However Kodak has to allow for much poorer storage condition s than that
Hopefully my sealed packs are good for a lot longer than the expiry date.
Thanks
pentaxuser
Absolutely. I mix the five liters and store in in one liter air evacuated containers. That is why I cannot see the advantage of dry developers in a glass jar or a can. Pour out a liter's worth of XTOL by eye? Are you f****g kidding me? That would only increase the cost of the packaging for theoretical improvements, if you have a large enough pin head to dance on.
That’s what you do when you have 20 packs of xtol? You store them in ONE HUNDRED 1L bottles and wanna sound smart about it?
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