Microppose® Smart Storage Lid – Humidity-Controlled Storage for Mushrooms & Herbs
Microppose® Smart Storage Lid – Humidity-Controlled Storage for Mushrooms & Herbs is backordered and will ship as soon as it is back in stock.
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Description
Description
Keep dried mushrooms, herbs, and botanicals fresh, potent, and shelf-stable with the Microppose® Smart Storage Lid — a precision humidity-control lid that fits any wide-mouth mason jar. It creates the ideal micro-environment inside the jar, protecting your goods from moisture, mold, and slow degradation whether you're storing for a week or a year.
A built-in digital hygrometer gives you real-time humidity readings, and the silicone sealing ring locks in an airtight fit. The battery comes pre-installed and silica packs are included, so it's ready to use straight out of the box.
Key Features
- Built-in digital hygrometer — real-time readings from 10–99% RH, refreshed every 5 seconds for precise monitoring.
- Universal wide-mouth fit — compatible with all wide-mouth mason jars (Ball, Kerr, and similar).
- Airtight silicone seal — prevents leaks, locks in freshness, and holds stable conditions inside the jar.
- Preserves potency — ideal for mushrooms, herbs, cannabis, or botanicals, guarding against mold, spoilage, and flavor loss.
- Desiccant-ready — includes two 5g silica gel packs to pull down moisture and stabilize humidity fast.
- Stackable, low-profile design — just 89mm in diameter for clean stacking and space-saving storage.
Optimal Humidity Ranges for Mushroom Storage
| Storage window | Target humidity |
|---|---|
| Short-term (1–90 days) | 50–55% RH |
| Long-term (90+ days) | 30–40% RH |
What's Included
| Qty | Item |
|---|---|
| 1× | Microppose® Smart Storage Lid (fits wide-mouth mason jars) |
| 2× | 5g silica desiccant packs |
| 1× | Silicone sealing ring |
| 1× | LR44 battery (pre-installed) |
Frequently Asked Questions
Does this fit regular-mouth mason jars?
No — the Smart Storage Lid is sized for wide-mouth jars only (Ball, Kerr, and equivalents). It won't seal correctly on a regular/standard-mouth jar.
How accurate is the built-in hygrometer?
It reads relative humidity across a 10–99% RH range and refreshes every 5 seconds, giving you a reliable real-time picture of conditions inside the jar so you can adjust desiccant as needed.
How many desiccant packs should I use?
Start with one 5g pack per jar, wait about 30 minutes, and check the reading. Add the second pack if you need to bring humidity down further for long-term storage.
Can I replace the battery?
Yes. The lid ships with an LR44 cell pre-installed, and it's a standard, widely available size when it eventually needs swapping.
Whether you're a mushroom grower, herbalist, or home enthusiast, the Microppose® Smart Storage Lid gives you smart, effective humidity control to extend shelf life and protect quality — one seal at a time.
Our Growing Experts Recommend
Products our growers commonly use with this item
Let customers speak for us
It's a great monotub kit. I recommend throwing the horse booster, used the whole bag to 4 small quick grain jars and the 7.5 mix. I learned how to do a pf tek with these guys 10 years ago when you still got the sticky light for the lid and the monotub was a blue tub with polyfill. These monotub kits have come a very long way since then. Substrate has always been clean and performed better than what I try to recreate with a pressure cooker.
10cc liquid culture and follow the instructions mgk gives you hard to mess up.
So far , I only have a little bit on agar , and am only beginning to study this mycelium. Super excited to try to put it to use in this Aspen tree.
Everything is looking real good so far
If your ever in need of replacing your hepa filter on your bonsai flowhood these are an exact match to whichever size you have. Worth noting that a filter will actually work a lot longer than is recommended due to physics but if your externals get dirty or damaged it’s worth replacing.
Shipping was lightning fast
I like everything about this setup. The time of ownership is too short to discuss fruiting mushrooms but the incubating mycelium seem to be doing well for now under the recommended temps. The one thing that would make this setup better would be the inclusion of an electronic controlled hygrometer to run the vaporizer.
Unit was just giving 0 on everything except air Temp and Humidity. Called customer and they are taking care of. Happy with customer service.
I think these are the best co2 boost bags on the market especially the price. More bang for your buck. My buds have been alot bigger, and alot more dense, stacking like a roll of silver coins! And alot more of a yield too! I will always use these co2 bags in every grow, they are definitely worth it! Unless you like fox tailed loose and airy buds!
These pellets work very well. Especially if you do no-low heat drying. Also helped,e save some that got soggy. I put a pinch of the pellets in the jar, and they dried up overnight.
These work, 2-3 per oz of dried mushrooms. Keeping them cracker dry.
Thank you for the fast shipping and awesome packaging! Love the insulated bags and ice packs! I am seeing some extremely aggressive growth in my sawdust bags after only 3 days! I have found my new spawn vendor! Please keep everything in stock! So hard to find good grain spawn these days without waiting a month.
I injected 2cc's into this 6 days ago, noticed first signs on day 4.
The unit came packed very well and easily assembled. My order did have an issue in that I was given a deficiency in the number of long screws I needed to complete the build. A quick email to customer service had my screws i the mail ASAP. Perfectly executed and best case scenario for an issue like this. SO far the unit operates as advertised and is a major upgrade to my home mycology process. I would recommend this product to anyone who wants a nice laminar flowhood but is not so inclined to design and build it from scratch. Components are well constructed and of good quality materials.
Super accurate. I use for each strand of research I do- a qc must!!!!
