TL;DR
The degreaser that actually cuts baked on cooking grease is one tablespoon of washing soda plus one teaspoon of dish soap in one quart of hot water. Alkalinity breaks the grease down and the detergent carries it away. It needs five to ten minutes of dwell time, gloves every time, and it must stay off aluminum, stone, and unfinished wood.
Why Grease Needs an Alkaline Cleaner
Cooking grease is fat, and fat is an acidic soil. Alkaline chemistry converts fat into something water soluble, which is the same reaction that turns oil into soap. That is why a high pH cleaner cuts grease that a neutral spray only smears around.
Baking soda is too mild for this. It sits at a pH around 8.3, which is barely alkaline. Washing soda sits near 11, which on the pH scale is hundreds of times stronger, and it is the difference between wiping grease and removing it. The full profile is in washing soda and its handling rules.
The Recipe
| Ingredient | Amount | Role |
|---|---|---|
| Hot water | 1 quart | Dissolves the powder and softens the grease |
| Washing soda | 1 tablespoon | Alkalinity that breaks down fat |
| Dish soap | 1 teaspoon | Surfactant that lifts and holds it in solution |
Dissolve the washing soda in hot water first and stir until the water is clear. Add the dish soap last and stir gently, since shaking makes foam. Use it the same day, in a labeled spray bottle or a bucket.
For heavy buildup on hood filters and oven exteriors, double the washing soda to two tablespoons per quart and expect to wear gloves the entire time.
For light everyday grease on counters and cabinet fronts, drop the washing soda entirely and use a teaspoon of dish soap in a quart of warm water. Most kitchen grease is fresher and softer than people assume.
How to Use It on Baked On Grease
Dwell time does more than scrubbing. Alkaline chemistry needs minutes on the surface, and most people wipe too early and conclude the product failed.
- Wear waterproof gloves. This is not optional with washing soda.
- Open a window or run the exhaust fan.
- Apply hot solution generously and let it sit five to ten minutes.
- Keep it wet. Re-mist a vertical surface or lay a damp cloth over it.
- Agitate with a nylon brush or a non scratch pad, not steel wool.
- Wipe with a cloth, then rinse the surface with clean water.
- Dry with a second cloth so no alkaline residue is left behind.
For range hood filters, a hot soak beats scrubbing entirely. Drop the filter into a sink of hot water with washing soda and dish soap for twenty to thirty minutes and most of the grease releases on its own. How to clean range hood filters covers the aluminum caution, which matters here.
Walls are their own problem, since paint reacts to degreasers. Cleaning grease off kitchen walls walks the gentler approach.
What This Degreaser Damages
High pH is destructive to more materials than most recipes admit.
| Surface | What happens |
|---|---|
| Aluminum pans, filters, and trim | Corrodes and turns gray or pitted, permanently |
| Unfinished, waxed, or oiled wood | Strips finish and raises the grain |
| Polished natural stone | Dulls the polish and degrades the sealer |
| Flat and matte paint | Burnishes to a shiny patch, or lifts color |
| Fiberglass and soft plastic | Hazes and dulls over repeated use |
| Skin | Chemical irritation and burns with prolonged contact |
| Wool and silk | Alkali damages protein fibers |
The aluminum warning is the one people learn the hard way. Many range hood filters are aluminum, and a long washing soda soak will gray them. Use a shorter soak with dish soap alone on aluminum, or accept the cosmetic change.
Always test painted or coated surfaces in a hidden spot and give the test ten minutes. Degreasers do their damage slowly enough that a quick test looks fine.
Safety Rules
Wear gloves and eye protection. Washing soda causes chemical irritation on skin contact and real damage in an eye. Flush any eye splash with water for fifteen minutes and call a doctor or the Poison Help line at 1-800-222-1222. Basic protection is covered in gloves and masks for cleaning jobs.
Never add bleach. Dish products can contain ammonia compounds, and bleach plus ammonia releases chloramine gas. Never add ammonia, and never add an acid such as vinegar or citric acid, which just neutralizes the mix into salty water.
Ventilate. Even without fumes, a hot alkaline solution in a closed kitchen is unpleasant and dries out airways.
Keep it labeled and out of reach of children and pets, and rinse any food contact surface thoroughly with clean water afterward.
Source: US National Library of Medicine household products database
When a Homemade Mix Is Not Enough
Carbonized grease, the hard black lacquer on an oven floor or an old hood, is no longer fat. Heat has polymerized it into something closer to varnish, and alkaline cleaners work on it very slowly. That is where a commercial oven product or a solvent based degreaser earns its price, and solvent versus alkaline degreasers in a kitchen explains the difference.
If you go that route, follow the label exactly, ventilate hard, and never combine a commercial product with anything homemade.
FAQ
What is the best homemade degreaser for kitchen grease?
One tablespoon of washing soda plus one teaspoon of dish soap in a quart of hot water. The alkalinity breaks down fat and the detergent carries it away. Wear gloves, let it sit five to ten minutes before wiping, and keep it off aluminum, natural stone, and unfinished wood.
Can I use baking soda instead of washing soda?
For light grease, yes, though it works much more slowly. Baking soda is a mild abrasive at a near neutral pH, while washing soda is a strong alkali that actually breaks fat down. For baked on grease the difference is dramatic, and the tradeoff is that washing soda requires gloves.
Does vinegar cut kitchen grease?
Barely. Vinegar is an acid, and grease is an acidic soil, so the chemistry works against you. Vinegar is excellent on mineral deposits and poor on grease. Use an alkaline cleaner for fat and save the acid for hard water spots and limescale.
Is homemade degreaser safe on kitchen cabinets?
Test first, always, in a hidden spot on an inside door edge. Alkaline cleaners can dull painted and varnished finishes and strip wax from wood cabinets. For most cabinet fronts, a teaspoon of dish soap in warm water with a rinse pass is the safer choice.
Why is my grease not coming off even with degreaser?
Either it needs more dwell time or it has carbonized. Alkaline cleaners need five to ten minutes on the surface and must stay wet the whole time. If the grease is hard, black, and glossy, heat has turned it into something closer to varnish, and that needs a commercial product.
Can I add bleach to a degreaser for extra power?
No, never. Dish products can contain ammonia compounds and bleach plus ammonia releases chloramine gas. Bleach also does nothing useful on grease, since it is an oxidizer and not a degreaser. Use one product at a time and rinse between them.
If this keeps landing on one person, regular house cleaning services cover the whole-home version of the job.
Alkaline plus surfactant plus dwell time is the whole formula, and there is no version of this that skips the gloves. When the grease has been building over the range for years, it is often faster to hand off the deep clean than to fight it on a Saturday. Every home is different, so the real number depends on size, condition, and what you want covered. Get a quote and we will walk you through it.