Non Jarred blends in an airtight tupperware?

What I’d be concerned about is whether the topping will bleed over and all your tobacco will smell like Walt*. If I were you I’d go invest in some mason jars, they’re less than a buck each for medium sizes bought by the dozen at a big box store. For the cost of a couple ounces of B&M bulk you can be protecting 2 or 3 pounds of tobacco.

Or, if you’re a peanut butter fan like me, switch to Teddie brand. Run those glass jars through a dishwasher and they make excellent tobacco storage.

*Edit: Smell like Sir Walt’s aro topping. Not saying anybody here smells bad.

I think that I would seal each individual pouch and heavy-duty Ziploc bags before I put them into the Tupperware I wouldn't want to take the chance on the tobacco's marrying with one another well in the Tupperware other than that I think you're good to go

It might work and this will be an experiment. Even with heavy duty bags though things will get in and out and the more time passes, the more they will mix. It would be better to use food grade vacuum bags or food grade mylar bags and heat seal them shut.

For me, I use half pint jars I get at Walmart for $8 a case, less if its on sale. They easily hold a pouch or small tin of tobacco. This allows me to take blends I find OK or not so good and store them away for the future. I know they will stay uncontaminated and with either age or my changing taste, they might do better for me. If not, I can easily give it away or trade it to someone who would appreciate that particular blend with a bit of age on it.

Ball jars are cheap, reliable, and reusable. Well worth the investment.
Tupperware will not give you the same level of air-tightness (is that a word?).

I use a Ball Jar so I don't have to worry about the moisture level of my tobacco....whether I choose to open it every few days, every few months, or every few years.

It's cheap peace of mind.

This!

All my open tins and anything I get pouched goes into Ball jars. Esoterica bags I put the whole unopened bag into food grade bags and use a vacuum sealer to close them up. Not sure if that will work. I guess we will see.

How would you know how I smell?  Should I resent that quote?

Have several Traveldor's from when I smoked cigars regularly. Works great to toss in the loose zip locks and tote around.

Flip top jars are the answer for short term storage and easy access.

This is a perennial question, and not necessarily an easy answer even if you have unlimited supplies of Mason/Ball jars and places to put them.

Certainly any storage option that takes a pouch out of the local atmosphere is a better choice than leaving it laying around in a desk drawer... but I caution myself frequently about becoming overly-concerned about various pouches or small samples of tobacco...

Usually, even if a tobacco is overly moist, I can tell if it's going to be something I'd be interested in a year or so down the road. If not, it goes in the trash.