How to store CBD flowers and resins in a shop, and how long they keep

By Manon, CBD specialist at Deli Hemp Pro

CBD flower keeps best away from light, at 15 to 20 °C, in an airtight container where the relative humidity stays between 55 and 62%. Under those conditions, it holds most of its aroma and texture for about six months. A compact resin lasts longer, around a year.

This guide is written for shops that keep several kilos in the stockroom, not for a consumer with a 3 g pouch. The difference changes everything: you open bulk bags, you repack, you display in a cabinet, and every gram that dries out or picks up moisture is a gram you will not sell at the price you planned.

What temperature and humidity should CBD flowers be stored at?

Between 15 and 20 °C, with no swings, and a relative humidity of 55 to 62% inside the container. It is not the humidity of the room that matters, but the humidity inside the jar or pouch.

Below 50%, buds turn brittle, trichomes fall off at the slightest touch and the aroma fades. Above 65%, mould becomes a risk, especially in dense buds whose core dries poorly. A digital hygrometer slipped into a reference jar costs a few euros and settles the question. Two-way humidity control packs (58 or 62%) are useful for jars that are opened often.

For the stockroom, a windowless room will do. Avoid the top of a drinks fridge, anywhere near a radiator, and a display cabinet that catches the afternoon sun: those are the three places where damaged flowers turn up most often.

Do resins and pollens keep the same way as flowers?

Almost, with two differences. A compact resin exposes little surface to the air, so it oxidises slowly and ages better than a flower. A pollen or dry sift, powdery or only lightly pressed, exposes a lot of surface: it loses its aroma faster than a resin and should be handled as little as possible.

Heat is their main enemy. Above 25 °C, a soft resin becomes sticky, loses its shape and clings to its packaging. Keep them in airtight pouches, one reference per pouch, and never store them in the same container as flowers: aromas transfer from one product to another.

Should CBD go in the fridge or the freezer?

For flowers, no. For a well-wrapped resin, the fridge is an option, on one condition.

A flower in the fridge gets condensation every time the door opens, which encourages mould. In the freezer, trichomes turn brittle and drop off as soon as the bud is handled: you lose the frosty look that sells in the display cabinet.

Resin copes better with cold, because it contains little water and its trichomes are already compacted. Long-term resin stock, vacuum-packed or in an airtight pouch, can go in the fridge. The condition: let the pouch come back to room temperature before opening it, otherwise moisture from the room condenses on the cold resin. For stock that sells through in a few weeks, a cool, dark stockroom is enough.

How long do CBD flowers and resins keep?

CBD does not become dangerous over time, but it does degrade: the aroma weakens first, then the colour and texture. Those are the signs that decide how long a product stays saleable at its normal price.

These timescales assume the product was properly dried when it arrived. When a bulk bag comes in, open it, smell it and check the texture: that is the moment to report a problem, not three months later. Check the paperwork at the same time. Our flowers and resins comply with French law (delta-9-THC ≤ 0.3%), but the rules on hemp products vary from country to country, and in the UK the status of hemp flower remains contested, so make sure you can resell them where you trade before ordering.

See the CBD flowers available in 100 g bulk bags

How should you organise stock so nothing goes to waste?

The rule fits on one line: first in, first out. Everything else follows from it.

• Keep bulk bags sealed until you repack them. A 100 g bag opened and closed ten times ages faster than ten 10 g pouches.
• Write on every container the date it was opened and the batch number. You will know what to sell first, and you will find the right analysis if you are inspected.
• One strain per container, and never mix batches.
• Only reference jars go in the display cabinet. Stock stays in the stockroom. A flower that customers have smelt and handled all day does not go back into the sales jar.
• Order at the pace of your sales: two 1 kg reorders beat a 5 kg purchase that ends up dried out, even with a discount. Volume tiers start at 1 kg (−5%), which leaves room to order often.

The same logic applies to resins: one opened pouch per reference, the rest sealed. The Deli Hemp range of wholesale CBD resins and pollens comes in pouches from 1 g to 100 g, so you don't have to open a large quantity for a handful of sales.

How can you spot a product that has degraded?

By smell first. A flower that smells of hay or cardboard has lost its terpenes. It is still compliant, but it will sell poorly. A musty, damp or ammonia smell, on the other hand, points to mould: isolate the batch, don't sell it, and tell your supplier if the problem was there on delivery.

Then by eye and by touch. A white or greyish fuzz between the leaves has nothing to do with trichomes, which are shiny and clearly distinct. A bud that is spongy at the core while the outside looks dry is a bad sign. For resins, a whitened surface and a paste that has turned hard mean it has dried out. That is not dangerous, but the product has lost value.

Frequently asked questions

How long does CBD flower keep?

About six months in an airtight pouch or jar, away from light, at 15 to 20 °C and 55 to 62% relative humidity. A jar opened several times a day loses its aroma within one to two months. The flower does not become dangerous, but it loses its aroma and its commercial value.

Can CBD resin be kept in the fridge?

Yes, for long-term stock, if the resin is vacuum-packed or in an airtight pouch. Always let the pouch return to room temperature before opening it, or moisture will condense on the resin. For stock that sells through in a few weeks, a cool, dark stockroom is enough.

What humidity should CBD flowers be stored at?

Between 55 and 62% relative humidity inside the container. Below 50%, buds become brittle and lose their aroma. Above 65%, the risk of mould rises. A hygrometer in a reference jar and humidity control packs at 58 or 62% are enough to keep it in check.

Is a glass jar or a pouch better?

Both work if they are airtight and protected from light. A tinted glass jar is practical for the display cabinet and opened references. A resealable opaque pouch suits stockroom inventory and bulk better. What matters most is opening them as rarely as possible and never mixing two strains.