Oven and griddle cleaning: degreasers for baked-on grease
Carbonised grease on griddles, fryers, grills and ovens needs a powerful alkaline degreaser, applied hot and given time to act. Ten products with their dosage, temperature and limitations exactly as stated on the technical data sheet.
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Baked-on grease comes off with heat and alkali
A griddle or oven in daily use builds up grease that heat polymerises and carbonises. Dissolving it takes highly alkaline degreasers (pH 11.5 to 12.8 in this range), almost always applied to the hot surface, at between 50 and 80 °C depending on the product, with a few minutes of contact time and thorough rinsing.
Check the material: according to their data sheets, almost all of these products cannot be used on aluminium. The exception is Neugras, with low alkalinity, which its data sheet allows on all types of metal, including aluminium. Ovens with a self-cleaning system take their own detergent and rinse aid.
Which product suits each piece of equipment
Griddles, fryers and grills
Hot · baked-on grease
- Deplac — neat or up to 10%, at 70–80 °C
- Bilgras — neat or up to 10%, at 70–80 °C
- Hot Gras — neat, at 70–80 °C; leaves no odours or tastes
- Griddgrass — neat or up to 10%, at 50–60 °C
Low alkalinity, aluminium too
Wall tiles, ovens and kitchens
- Neugras — neat or up to 10%; suitable for the food industry
For grease on floors, hoods and surfaces throughout the kitchen, see the industrial degreasers guide.
Dosage, temperature and materials for each product
| Product | pH (1%) | Dosage and temperature | Use and materials per data sheet |
|---|---|---|---|
| Deplac | 12.5 | Neat or up to 10%; 70–80 °C | Griddles and ovens with baked-on grease; all metals except aluminium |
| Bilgras | 12.5 | Neat or up to 10%; 70–80 °C | Griddles and ovens with baked-on grease; all metals except aluminium |
| Hot Gras | 12.0 | Neat; 70–80 °C | Griddles, fryers, ovens, grills, salamanders; except aluminium |
| Griddgrass | 12.5 | Neat or up to 10%; 50–60 °C | Griddles, ovens and surfaces with baked-on grease; except aluminium |
| Gelgras | 11.5 | Neat; cold or at 70–80 °C | Griddles, hobs, fryers; gel that penetrates the soiling |
| Quimigras | 12.0 | Neat or up to 10% | Griddles, fryers, ovens, grills, salamanders; except aluminium |
| Forclin | 12.0 | Sprayed + programme, or oven pump | Ovens with an automatic cleaning system |
| Fordry | 2.8 | 0.3–1 g/l; 45–80 °C | Rinse additive for ovens; automatic dosing recommended |
| Filter | 12.8 | 2–10% in hot water | Immersion of utensils, hood filters, fryers; except aluminium |
| Neugras | 11.3 | Neat or up to 10% | Wall tiles, ovens and kitchen fittings; all metals, even aluminium |
Always rinse with plenty of water after the contact time, as the data sheets state. Before applying hot, check the surface temperature: each product has its own range.
Who this range is for
Restaurants and kitchens
Griddles, fryers and ovens in daily use: degrease at the end of service while the surface is still hot.
Hotels and institutional catering
High-volume kitchens with self-cleaning combi ovens: Forclin and Fordry. More in the HORECA hub.
Bakeries and patisseries
Ovens and trays: Neugras where there are aluminium parts.
Cleaning companies
Deep cleaning of industrial kitchens, with hood filters immersed in Filter.
How to clean a griddle, an oven and the extractor hood
The method for burnt-on grease in professional kitchens, with the product and dose from each technical data sheet.
How to clean a kitchen griddle with burnt-on grease
While the griddle is still hot
- Leave the griddle at about 70–80 ºC and remove solid residues with the scraper.
- Spray Deplac or Bilgras, neat or diluted up to 10 %.
- Leave it to act for a few minutes so the product breaks down the burnt-on grease.
- Rinse with plenty of water.
Wear gloves, protective clothing and goggles, as the data sheet indicates. Not suitable for aluminium: in that case, use Neugras.
How to clean a very dirty oven
Conventional or self-cleaning oven
- Conventional oven: apply Gelgras neat to the walls, cold or at 70–80 ºC; the gel stays on the surface.
- Leave it to act for a few minutes and remove the dirt.
- Rinse with plenty of water.
- Self-cleaning oven: spray Forclin and run the cleaning programme, or dose it with the oven pump; as a rinse aid, Fordry at 0.3–1 g/l.
Wear gloves, protective clothing and goggles, as the data sheets indicate.
How to clean the extractor hood and its filters
Filters by immersion, hood by spraying
- Remove the filters and soak them in Filter dissolved in hot water at 2–10 % depending on the soiling.
- Rinse the filters with plenty of water.
- Spray the hood with Grassol, neat or diluted up to 1 %, and rinse.
- Aluminium filters or parts: use Neugras, which its data sheet allows on all types of metal.
Filter and Grassol are not used on aluminium. Wear gloves, protective clothing and goggles.
Frequently asked questions about oven and griddle cleaning
How do you clean a griddle with baked-on grease?
Which product is used in a self-cleaning oven?
Can they be used on aluminium?
Most cannot: their data sheets exclude aluminium. Neugras, with low alkalinity, is the exception: its data sheet allows all types of metal, including aluminium.
How are extractor hood filters cleaned?
By immersion in Filter, dissolved in hot water at 2 to 10% depending on the soiling and the contact time, then rinsing with plenty of water. It is not suitable for aluminium filters.
Do they leave any odour or taste?
Do you supply restaurants, cleaning companies and distributors?
Yes. We have manufactured at our plant in Vic since 1990, with pack sizes from 1 to 24 kg depending on the product. See the distribution programme.
What do your ovens and griddles need?
Tell us what equipment you have (griddles, fryers, self-cleaning combi ovens, extractor hoods) and whether there are aluminium parts: we will recommend the product and dosage at factory prices.
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