Can I put the oil from a vape pen in brownies?

While you technically can put vape pen oil in brownies, I strongly advise against it for several important health and safety reasons:

Key Risks and Problems:

Inhalation vs. Ingestion Chemicals: Vape oil often contains thinning agents (like propylene glycol, vegetable glycerin, or MCT oil) and flavorings that are safe for inhalation but may cause digestive upset, nausea, or other adverse effects when eaten in concentrated amounts.

Unknown Ingredients: You may not know all additives or contaminants in the cartridge, which could be harmful when ingested.

Potency Control: Vape oil is highly concentrated. Accurately dosing it into edibles is extremely difficult, greatly increasing the risk of an uncomfortably strong or dangerous psychoactive experience.

Decarboxylation Issues: While some vape oils are already decarboxylated (activated for effects), others may not be, leading to weak or unpredictable results.

Safer Alternatives:

If you want to make cannabis-infused brownies, it's much safer to:

Use properly decarboxylated cannabis flower to make butter or oil.

Use a concentrate specifically designed for edibles (like distillate or RSO).

Purchase legally manufactured edibles where available.

Bottom Line:

Don't use vape pen oil for edibles. The potential for negative health effects and unpredictable potency makes it a risky choice. Always use ingredients intended for consumption, and start with very low doses if you're new to edibles.