Method
How do I make infused neutral oil?
Every other oil on this list tastes of something. Neutral oils do not, which makes them the right choice for savory cooking where an olive note would be wrong and a coconut one would be baffling. They are unsaturated, so they hold cannabinoids slightly less readily than butter or coconut — but as ever, that gap is small next to your method.

How to make it
- 01
Decarb the flower. Break it up coarsely by hand or with a grinder, spread it in a single even layer on a parchment-lined sheet, and bake at 240 °F for 30–45 minutes.
This converts THCA into THC — without it, most of what you have stays inactive. 240 °F converts 85–95% of what is available. Longer is not safer: past the peak, THC starts turning into CBN and the loss does not come back. Set a timer.
- 02
Combine the decarbed flower with the grapeseed oil at about 28 g per cup.
1 oz flower per cup of fat is the conventional starting point, not a rule. Using half that gives you a gentler infusion, which is often what you actually want.
- 03
Hold it at 160–190 °F for 2–4 hours, stirring occasionally.
This is a long warm soak, not a simmer. Above about 200 °F you start boiling off terpenes and pushing THC toward CBN — if it is bubbling, it is too hot. Sealed, so nothing evaporates off. Also the low-smell option.
- 04
Strain through cheesecloth into a jar. Let it drip on its own — do not squeeze the cloth.
Squeezing forces plant particulate into the grapeseed oil and is the single biggest cause of a grassy-tasting infusion. What is left in the cloth is not worth what wringing it costs you.
- 05
Cool, then store it cold and dark. Label it with the date and the strength you calculated.
Light, air and heat all degrade it slowly. An unlabeled jar of infused grapeseed oil in a shared refrigerator is how people get dosed without consenting to it.
Notes on grapeseed oil
- Grapeseed, canola, sunflower and safflower all behave the same way here. Pick on price.
- Stays liquid in the refrigerator, so it pours straight from the fridge into a dressing or a finished dish.
- Its neutrality is the whole point: this is the carrier for chili oil, savory sauces and anything where you do not want to taste the fat.
How strong will it be?
That depends entirely on your flower, and this page cannot tell you. What it can tell you is the shape of the answer: of the cannabinoid you start with, decarb activates most of it and this method transfers roughly 57–76% of that into the grapeseed oil.
Put your own numbers in and you get a range in milligrams per tablespoon, with the assumptions printed beside it — then every recipe here rescales itself to match.
Questions people ask
- Is neutral oil weaker than coconut oil?
- Marginally, because it is unsaturated and saturated fats hold cannabinoids a little better. The difference is small enough to be swamped by whether you used a sealed jar or an open pot, so choose on flavor rather than on a percentage point.
- Can I fry with it?
- No. Neutral oils have high smoke points, which is exactly why people assume they can — but the infusion does not care about the smoke point. Frying temperatures are far above anything an infusion survives. Use plain oil to fry and stir the infused oil in afterward.