After roughly 72 hours in the fridge the pea greens started showing very subtle signs of softening/wilting. I did a taste test of the greens harvested 72 hours ago versus harvesting and eating live greens. The 72 hour greens tasted a bit more grassy, the live harvested tasted sweeter and were crisper in comparison. The obvious benefit of the 72 hour refrigeration is more time window before consumption, while the tray could then be used to grow even more in that time period. The downside is slightly wilted greens, refrigeration required, and clam shell packaging.
Here's the previous post if anyone wants more context to the experiment: https://lemmy.world/post/47253866
Live trays of shoots and sprouts are sold all over the US, but obviously the stores you go to may vary. They look like this with a clamshell and cellophane top.
Most ship with plastic packaging, as you noted, but they still have aerated ceiling because it's obviously necessary.
If you want permeable packaging that won't suffocate delicate shoots, you want packaging with a sturdy bottom to prevent water drainage, but a porous top with air flow. Sugar resin bottom, and plant fiber top. That will get you what you need, and last weeks.
Plenty of manufacturers out there who will sell you any molding you need of these things at scale.
Thanks for the information, I hope that at some point I'm able to scale to that point. I'm going to continue to push for the idea that the trays can be used multiple times, thus reducing the price each sale significantly. This is what I'm currently using which is polypropylene.
I don't think there is any issue with these trays being used multiple times. I think you're pushing two competitive ideas.
growing
selling the product
Thanks, I also like the idea the customer is "investing" in the idea, such that the initial cost is higher, and they get a reduced price on future orders as a reward for returning the tray. The funny thing being that I'd make more profit if it they don't return it, so it's a genuine benefit to the customer to return it. We'd clean it as well.