Quick answer: The spore syringe vs spore print choice comes down to form. A spore print is a dry deposit of spores that a mushroom cap drops onto paper, foil or glass. A spore syringe holds spores that are already suspended in sterile water, so a single drop on a glass slide is ready to look at. For someone new to spore microscopy, a syringe is usually the easier buy. A print suits someone who wants to see spore color in mass and keep a compact, dry reference.
The spores themselves are the same in both. They look the same under a microscope, and the law treats a print and a syringe the same way.
Looking for spore syringes?
We ship Psilocybe cubensis spore syringes the same business day. Each syringe is a 10 cc syringe. Orders over $100 ship free, and our spore syringe packs save you up to 40%.
Intended use. Our Psilocybe cubensis spore syringes are sold for microscopy, taxonomy and educational use only. Not for human consumption. This page compares two ways of keeping spores for study. We sell syringes, not prints.
In this guide
- What a spore print and a spore syringe are
- Spore syringe vs spore print at a glance
- What you see in each one
- How each one is stored
- Checking each one for contamination
- Which one is easier to make a slide from
- Legal status is the same
- Which one to buy
- Frequently asked questions
- Sources
What a spore print and a spore syringe are
A spore print is the powdery deposit left when spores fall from a mushroom’s gills onto the surface underneath. It is one of the first things a field guide asks for when identifying a mushroom, because spore color in mass is a stable trait. Mycologists often take prints on white and dark paper so both pale and dark spores show, or on a glass slide so the spores can go straight under a microscope. Once dry, a print is folded into foil or a small bag and labeled. Our spore print guide covers how prints are made and what the colors mean.
A spore syringe is made from a print. Spores are scraped from the print into sterile water, and the suspension is drawn into sterile syringes and capped. Ours are 10 cc syringes filled in an ISO-7 cleanroom, and each one comes with a sterile needle and an alcohol pad. Our spore syringe guide explains what is inside one and how it is made.
So the two are not really different things. A print is spores kept dry, and a syringe is spores from a print, put into water so they are easy to dispense.
Spore syringe vs spore print at a glance
| Spore print | Spore syringe | |
|---|---|---|
| What it is | Dry spores on paper, foil or glass | Spores suspended in sterile water |
| Seeing spore color | Easy, because the spores sit together in mass | Only a faint tint, dark specks and small clumps |
| Storage | Sealed and dry, away from heat and light | Capped, in the refrigerator, for up to 90 days |
| Contamination check | Mostly under the microscope | Many signs are visible by eye, then confirmed under the microscope |
| Making a slide | Scrape a few spores into a drop of water and break up the clumps | Shake, then put one drop on the slide |
| Legal status | Same as a syringe | Legal for microscopy in 46 states; four states have spore laws |
What you see in each one
A single spore is too small to see in either form. Psilocybe cubensis spores are roughly 11 to 17 micrometers long and 7 to 11 wide, and the unaided eye cannot pick out anything much smaller than about 0.1 millimeter, which is 100 micrometers. One spore is around a sixth to a ninth of that limit. What you can see is spores in bulk.
That is where a print has the advantage. Because millions of spores sit together on the paper, the print shows their true color. A cubensis print is dark purple-brown to nearly black. You also see the pattern of the gills, radiating out from the blank spot where the stem was.
In a syringe the same spores are spread through several milliliters of water. You see dark specks, small clumps that settle to the bottom when the syringe stands still, and sometimes a faint tint. A syringe of a pale-spored strain can look like plain water. Our guide to how many spores are in a spore syringe explains why.
Under a microscope there is no difference. Spores from a print and spores from a syringe are the same smooth, thick-walled ovals with a germ pore at one end. Dark spores like these need no stain, and plain water is a standard mounting fluid for them.
How each one is stored
A spore syringe should be kept capped and in the refrigerator, where it stays good for up to 90 days. Do not freeze it. Each time it is opened, something from the air has a small chance of getting in, so keep it capped between uses. Our guide to how long spore syringes last covers storage in detail.
A print has no water in it, so the main risk is damp. Kept folded in foil or a sealed bag, dry and away from heat and light, a print is a compact thing to file away. That makes prints handy as a reference, since a labeled envelope of prints takes up almost no room.
Checking each one for contamination
With a syringe, most problems show without a microscope. Water that stays hazy after the syringe has stood still, cottony strands, an odd color or a smell all point to bacteria or mold. Spores sink and disperse when shaken, while a bacterial haze does not settle. Our guide to telling if a spore syringe is contaminated goes through each sign and what normal looks like.
A print gives you fewer clues by eye. It is a dry surface that sat open to the air while the spores dropped, so anything that landed on it during that time is still there. You find out under the microscope, where mold shows as branching threads and foreign spores of a different size and shape. How clean a print is depends on how and where it was taken. A syringe filled in a cleanroom starts out clean and stays that way while it is capped and handled with care.
Which one is easier to make a slide from
A syringe is the easier of the two. Shake the syringe, attach the sterile needle, put one drop in the center of a clean slide, and lower a cover slip onto it at an angle so air bubbles are pushed out rather than trapped. The spores are already spread through the water, so they land evenly across the field.
A print takes one more step. You scrape a small amount of spores into a drop of water on the slide and mix it before adding the cover slip. Dry spores tend to stick together in water, which is why laboratory protocols often add a little surfactant such as Tween 80 to spore suspensions to reduce clumping. With plain water, expect more clumps and a less even field than from a syringe.
Our step-by-step guide to making a microscope slide from a spore syringe covers the full process, from cleaning the work surface to focusing at 400×.
Legal status is the same
The law makes no distinction between spores dried on foil and spores suspended in water. In January 2024 the DEA wrote that mushroom spores that do not contain psilocybin or psilocin are not controlled under federal law, and that material becomes controlled once it contains those compounds, for example upon germination. Four states have written spores into their own laws: California, Florida, Georgia and Idaho. We do not ship to those four. In the other 46 states, buying spores for microscopy is legal.
This is general information, not legal advice. Laws change, so check the current law where you live. Our state-by-state guide to spore laws links every statute.
Which one to buy
For most readers, the spore syringe vs spore print decision rests on how you plan to use the spores. Choose a spore syringe if you want to start making slides the day it arrives. It is also the better format for comparing strains side by side, for a classroom where several people need slides from the same source, and for anyone who would rather not deal with scraping and dispersing dry spores. Our spore syringes ship with a sterile needle and an alcohol pad, and the Beginner’s Starter Kit puts five syringes in one box with gloves, a face mask and alcohol pads.
Choose a print if spore color in mass matters to your study, if you want a dry reference collection that takes up little space, or if you are comfortable preparing slides from dry material. Prints are a sound tool, and most mushroom identification handbooks still treat print color as a key character.
If you are new to spore microscopy and still deciding which strains to start with, our guide to the best spore syringes for beginners explains the classic choices.
Frequently asked questions
Is a spore syringe or a spore print better for microscopy?
For most people a spore syringe is more convenient, because the spores are already dispersed in sterile water and one drop makes a slide. A print needs a little preparation but shows spore color in mass and stores dry.
Are the spores in a syringe different from the spores in a print?
No. A syringe is made by washing spores from a print into sterile water. Under a microscope the spores look the same.
How should a spore syringe and a spore print be stored?
Keep a spore syringe capped in the refrigerator, where it stays good for up to 90 days, and never freeze it. Keep a spore print dry and sealed, away from heat and light.
Why does a spore print show color when a syringe looks almost clear?
On a print, millions of spores sit together, so their pigment adds up to a visible color. In a syringe the same spores are spread through water, so you only see specks, clumps and at most a faint tint.
Can you check a spore print for contamination?
Only partly by eye. Mold or bacteria on a print usually show up under the microscope as threads or as spores and cells that do not match the species.
Are spore prints and spore syringes legal in the same places?
Yes. The law treats spores the same way in either form. They are legal for microscopy in 46 states, and California, Florida, Georgia and Idaho have their own spore laws.
Does The Spore Source sell spore prints?
No. We sell Psilocybe cubensis spore syringes only, filled to 10 cc in an ISO-7 cleanroom and sold for microscopy and taxonomy use.
Sources
- Wikipedia, “Spore print”
- Wikipedia, “Psilocybe” (spore print color and spore features)
- Wikipedia, “Psilocybe cubensis” (spore measurements, citing Singer and Smith, 1958)
- Mycology Wiki, “Psilocybe cubensis”
- Hartline, Microbiology Laboratory Manual, “Microscopy” (LibreTexts)
- Leica Microsystems, “What is Empty Magnification”
- Buckinghamshire Fungus Group, “Mushroom Microscopy: Some General Information and Tips” (PDF, 2022)
- Queensland Mycological Society, “Procedures for Using Stains and Immersion Oil in Microscopy”
- Microbehunter, “Making a wet mount microscope slide”
- Queensborough Community College (CUNY), Laboratory Exercises in Microbiology (PDF)
- National Plant Diagnostic Network, “Tips for the purification of fungi and oomycetes”
- CDC, Emerging Infectious Diseases technical appendix (use of Tween 80 to reduce spore sticking, PDF)
- DEA Diversion Control Division letter, January 2, 2024 (PDF)
- Marijuana Moment, “DEA Confirms That Psychedelic Mushroom Spores Are Federally Legal Prior To Germination” (January 2024)
Psilocybe cubensis spore syringes
Our Psilocybe cubensis spore syringes are 10 cc syringes filled in our ISO-7 cleanroom. Each one comes with a sterile needle. Orders placed by 1 p.m. Eastern on a weekday ship the same day, to the 46 states where spores are legal. You get free shipping on orders over $100, up to 40% off with our 3-, 5- and 10-packs, and a 30-day warranty. They are sold for microscopy and taxonomy use only.
Browse spore syringes → · Beginner’s Starter Kit → · What is a spore print? →
