How to Clean Resin Off Scissors, Trays and Other Trimming Tools
Resin builds up on everything during a harvest. Scissors get sticky and stiff, tray screens clog, and gloves gum up. Cleaning it off is easy once you know which method suits which tool, and doing it safely matters because the most common cleaner, isopropyl alcohol, is highly flammable.
This guide covers cleaning methods for each tool, the supplies to keep on hand, and the safety rules for working with alcohol.
Quick answer
- Isopropyl alcohol is the most common cleaner for resin on metal tools. Higher concentrations, often 90% or above, dissolve resin faster.
- Ventilate and keep flames away. Isopropyl alcohol vapor is highly flammable. No open flames, lit cigarettes, pilot lights or heat sources nearby.
- Oil-based cleaning (cooking oil or coconut oil) also loosens resin and is a non-flammable option for some tools; wash afterward.
- Let everything dry fully before reuse or storage, and oil scissor pivots lightly after cleaning.
- For coated blades, wooden trays and nylon screens, use gentler methods.
Equipment guide only. Growing, processing and storing cannabis is legal in some places and not in others, so follow the laws where you live. Nothing on this page is medical advice.
Why resin is so hard to remove
Plant resin is sticky, oily and doesn't dissolve in water. That's why soapy water alone barely touches it. Alcohol dissolves it, and oils soften and loosen it. Once loosened, it wipes off easily.
The trick is to clean little and often. Fresh resin comes off far more easily than a thick, hardened layer from a whole session.
Cleaning supplies to keep on hand
- Isopropyl alcohol, commonly 90% or higher, in a closed container
- A small jar or cup with a lid for soaking scissor blades
- Paper towels or lint-free cloths
- A soft brush or old toothbrush for pivots and screens
- Nitrile gloves; alcohol dries out skin
- A light oil (for example, a cooking oil or a light tool oil) for pivots
- Warm water and dish soap for final rinses
Safety first: isopropyl alcohol is flammable
Isopropyl alcohol evaporates quickly and its vapor can ignite. Treat it the same way you'd treat any flammable liquid:
- Ventilate. Open a window or work near an exhaust fan, and avoid breathing concentrated vapor.
- No ignition sources. No candles, lighters, smoking, gas stove burners or pilot lights in the area. Keep it away from hot rosin press plates and heaters.
- Small quantities. Pour out only what you need; keep the main bottle capped.
- Let it evaporate fully before tools go near heat.
- Dispose properly. Follow local guidance for disposing of used alcohol and soaked rags; don't leave soaked rags in a pile.
- Store safely in the original container, away from heat and out of reach of children.
Follow the safety directions on the alcohol bottle. Wear gloves and keep it away from eyes.
How to clean each tool
| Tool | Method | Notes |
|---|---|---|
| Stainless scissors | Soak blades in alcohol, then wipe | Dry fully; oil the pivot after |
| Coated scissors | Wipe with alcohol or oil; brief soak at most | Avoid harsh scrubbing that can wear coatings |
| Stainless trim screen | Wipe or brush with alcohol | Collect what's in the catch tray first |
| Nylon screen | Gentle wipe; avoid heavy scrubbing | Replace if stretched or torn |
| Plastic tray | Wipe resin off, then soap and water | Test alcohol on a small area first |
| Wood / bamboo tray | Wipe with a little oil, then dry | Don't soak |
| Rosin press plates | Only when unplugged and fully cool | Follow the manufacturer's cleaning guidance |
Trimming scissors
- Scrape off loose buildup with a fingernail (gloved) or a soft tool.
- Soak the blades in a small lidded jar of isopropyl alcohol for a few minutes. Keep the handles out if they're rubberized.
- Wipe clean with a paper towel, working the blades open and closed.
- Brush the pivot with a small brush to clear residue.
- Dry completely in a ventilated spot.
- Add a drop of light oil to the pivot and work the blades.
During a trim session, keep a second pair of scissors so one can soak while you use the other.
Trim tray screens
Collect anything in the catch tray first. Then brush or wipe the screen gently with alcohol, rinse with warm soapy water if suitable for the material, and dry flat. Don't press hard on the mesh.
The oil method: a non-flammable option
Oil softens resin so it can be wiped away. It's a useful alternative when you don't want to use alcohol, or for surfaces alcohol might damage, like some coatings and wood. Rub a little cooking oil or coconut oil over the sticky area, let it sit briefly, wipe it off, then wash with warm soapy water to remove the oil.
It's slower than alcohol on heavy buildup and leaves residue that needs washing, but it avoids the flammability concerns completely.
Alcohol vs oil at a glance
| Isopropyl alcohol | Cooking or coconut oil | |
|---|---|---|
| Speed on heavy resin | Fast | Slower |
| Flammability | Highly flammable; needs ventilation and no ignition sources | Not a concern at room temperature |
| Residue | Evaporates | Needs a soap-and-water wash |
| Gentle on coatings and wood | Can be harsh | Generally gentler |
| Best for | Stainless blades and screens | Coated tools, wood, hands |
Many people keep both: alcohol for a quick, thorough clean of metal tools at the end of the day, and oil for anything delicate.
Hands and gloves
Nitrile gloves keep resin off your hands in the first place and are the simplest fix. If resin does get on your skin, rubbing with a little cooking oil and then washing with soap and water usually works. Many people avoid using alcohol on skin because it's drying.
After-cleaning care and storage
- Every tool fully dry before storage
- Scissor pivots lightly oiled
- Screens stored flat so they don't bend
- Alcohol capped and stored away from heat
- Used rags and towels disposed of safely
- Dull or damaged blades set aside for sharpening or replacement
If your blades still crush rather than cut after cleaning, they may need sharpening. See sharpeners for shears, snips and pruners. For larger cleaning jobs, cleaning brushes for equipment covers useful brush types.
A simple cleaning routine for harvest season
Cleaning goes much faster when it's part of the routine rather than a big job at the end. A practical rhythm for a home harvest:
| When | What to clean | How |
|---|---|---|
| During a session | Scissor blades | Quick wipe, or swap to a clean pair and let the sticky pair soak |
| End of each session | All scissors, gloves off, work surface | Alcohol soak and wipe for blades; wipe down the table |
| End of trimming | Trim tray and screen | Collect the catch tray, then clean screen and tray |
| End of harvest | Everything, including racks and lines | Full clean, dry, oil pivots, store flat and covered |
| Before next harvest | Check tools | Look for dull blades, tired springs, torn screens |
Drying racks and mesh tiers deserve a clean between harvests too. Fabric mesh racks can often be washed; check the listing. Clean racks reduce the chance of carrying dust or residue into the next batch.
Keep cleaning supplies together in one box or bin, with the alcohol in its original capped bottle, so everything is ready when the next harvest comes around and nothing flammable gets left out.
Frequently asked questions
What is the best way to clean resin off scissors?
Soak the blades in isopropyl alcohol for a few minutes, wipe them clean, dry fully, and oil the pivot. Work in a ventilated area away from flames.
What percentage of isopropyl alcohol should I use?
Higher concentrations, commonly 90% or above, dissolve resin faster. Lower concentrations work but take longer.
Is it safe to clean tools with isopropyl alcohol indoors?
Yes, with precautions. Ventilate the area, keep all flames and heat sources away, use small quantities, and keep the bottle capped. Follow the label directions.
Can I use oil instead of alcohol?
Yes. Cooking oil or coconut oil loosens resin and is non-flammable. Wipe it off and wash with soapy water afterwards.
How do I clean a rosin press?
Only after it's unplugged and fully cool. Never use alcohol on hot plates. Follow the manufacturer's cleaning instructions.
Bottom line
Clean little and often, use isopropyl alcohol for metal and oil for delicate surfaces, and treat alcohol as the flammable liquid it is: ventilation, no flames, small amounts, capped bottle. A spare pair of scissors and a lidded soak jar make the whole process painless.
Follow the laws where you live.