Remove old grease stains with bicarbonate of soda, baking parchment and an iron

A seemingly ruined T-shirt, a greasy tablecloth, a stained tea towel – and the washing machine makes no difference?

A simple kitchen trick can often shift old grease stains more quickly than any specialist product.

Many people give up in frustration when grease marks remain visible even after several washes. Yet the issue is rarely the detergent brand; it is usually how deeply the grease has worked its way into the fibres. A combination of three household essentials and an appliance that almost everyone uses weekly can lift these marks surprisingly quickly – without harsh chemicals or ruining the fabric.

Why old grease stains are so difficult to remove

Fresh grease splashes can often be removed with a little washing-up liquid and a standard wash cycle. Once the grease has dried, however, it changes: it hardens and becomes firmly lodged in the fabric.

“Old grease stains do not merely sit on the surface – they are embedded in the core of the fibre, which is why even a powerful wash struggles to remove them.”

Fabrics that absorb grease like a sponge are especially vulnerable:

• Cotton (T-shirts, bed linen, tea towels)
• Denim
• Stiff canvas fabric
• Terry towels
• Durable synthetic blends (such as workwear)

During washing, detergent may clean the surface, but the greasy core often remains inside the fibre. Every tumble-drying cycle makes that core set more firmly. This is where the kitchen method comes in: the grease first needs to be loosened before it can be drawn away.

The unexpected grease-fighting dream team: powder, paper and heat

The technique relies on three straightforward items that are already found in many homes:

• Sodium bicarbonate (bicarbonate of soda / baking soda)
• Baking parchment
• An iron on a low setting

Each item has a clear purpose:

Component	Role
Sodium bicarbonate	Binds and absorbs the loosened grease
Baking parchment	Creates a clean barrier and acts as a grease absorber
Iron (without steam)	Provides gentle heat to liquefy the grease

“The combination of gentle heat and strong absorbency draws grease out of the fibre rather than simply spreading it around.”

This approach can often visibly lighten old grease stains, or remove them altogether, before the garment even goes into the wash. Its advantages are clear: no pungent smell, no corrosive chemicals and very little risk to durable fabrics.

When the bicarbonate of soda and iron trick works – and when it does not

It is particularly suitable for:

• Cotton T-shirts and shirts
• Jeans and chinos
• Tea towels, napkins, and cotton or linen tablecloths
• Towels and flannels
• Hard-wearing man-made fibres (such as polyester blends)

Delicate materials need considerably more care:

• Silk
• Wool and cashmere
• Leather and suede
• Velvet and fine velour
• Coated fabrics (outdoor jackets, wipe-clean tablecloths)

On these materials, heat can quickly cause shiny patches, alter the shape or damage the coating. Professional dry cleaning or a cold treatment with a specialist stain remover is a better option here.

As a general rule, always test an inconspicuous area first when dealing with uncertain textiles, very dark fabrics or heavily printed material, to make sure the heat does not alter it.

What you will need

No specialist products are required for this two-minute treatment. Ideally, have the following ready:

• Food-grade or cleaning-grade bicarbonate of soda – preferably pure, dry and fragrance-free
• Baking parchment – not kitchen roll and not cling film
• An iron with an adjustable temperature, with the steam switched off
• A thick, clean protective layer, such as an old towel
• Optional: traditional soap or a classic vegetable-oil soap for coloured edges around the stain

Only a thin layer of bicarbonate of soda is needed. Two teaspoons are often enough for a typical T-shirt stain. Scented versions or blended products are less dependable because they contain other ingredients that may not absorb grease as effectively.

Step by step: the express method

1. Prepare the stain

Starting to iron immediately can spread the grease further. Instead:

• Gently blot fresh stains with kitchen roll; do not rub them.
• For old stains, remove loose residue with a soft brush.
• Place a thick towel or a piece of card beneath the affected area.

This protective layer stops grease from transferring to the reverse side of the fabric or directly onto the ironing board.

2. Sprinkle on bicarbonate of soda

Now apply the powder. Scatter a thin but even layer across the stained area. The mark should look as though it has been covered with a light dusting of snow, rather than buried beneath a heap.

“The bicarbonate of soda should only lightly cover the fibre. Vigorous rubbing pushes grease deeper into the fabric – the exact opposite of what you want to achieve.”

3. Place baking parchment over it

Fold a piece of baking parchment in the middle and lay it over the powdered area. Press the edges down lightly so that it does not slip. Unlike kitchen roll, baking parchment does not tear and remains stable when heated.

Cling film is unsuitable because it could melt and stick to the fabric. Coloured cloths are also risky, as they may simply transfer the grease elsewhere or leave stains of their own.

4. Use low heat

Set the iron to a low-to-medium temperature, with no steam. Then carry out the crucial step:

• Place the iron down; do not slide it back and forth.
• Press gently for a few seconds at a time, then move it to the next section.
• Treat the paper with heat for around one to two minutes in total.

If you wish, lift one corner during the process to check. If the baking parchment becomes slightly translucent in that spot, it is a clear sign that grease is moving.

5. Check the result and follow up

After the first round, remove the paper completely and carefully shake off the bicarbonate of soda or brush it away with a soft brush. By this stage, the mark will often already be noticeably lighter or nearly gone.

If some staining remains, simply repeat the process with fresh powder and a clean section of baking parchment. Then wash the item as normal, ideally following the care label instructions.

Common mistakes – and how to avoid them

Small details can cause many attempts to fail. These are the most frequent pitfalls:

• Temperature set too high: A very hot iron can effectively bake in grease and permanently set the stain, especially on synthetic fabrics.
• Steam switched on: Moisture spreads grease through the fabric and can leave unattractive rings.
• No absorbent layer underneath: Without a towel or card, the grease simply ends up on the reverse side.
• Scrubbing too hard: Hard-bristled brushes can polish the fibres and create pale shiny areas, particularly on dark denim.
• “Just washing it” without pre-treatment: Putting the item straight into the washing machine and then the tumble dryer greatly reduces the chance of saving it.

Special cases: butter, oil, make-up and more

Not all greasy substances behave in the same way. Here are a few everyday examples:

• Butter and cream sauces: These leave behind both grease and colour pigments. The heat-and-bicarbonate method removes the grease first. A bar of traditional soap or solid soap can then help with any remaining discolouration.
• Cooking oils and deep-frying fat: These are often particularly stubborn, but respond well to repeated treatment. Two rounds with bicarbonate of soda and baking parchment can often make the difference.
• Make-up and lipstick: First rub gently with soap, then proceed with the heat treatment.

A practical household checklist for grease stains

Creating a small anti-stain area in the cleaning cupboard saves both time and frustration. Useful supplies include:

• A well-sealed jar containing 200 grams of bicarbonate of soda
• A roll of baking parchment reserved specifically for stain rescue
• A bar of traditional soap or vegetable-based household soap
• Two old but clean cotton cloths, plus a “sacrificial towel” to use as the protective layer

With this basic kit, an attempt to rescue an item rarely takes more than a few minutes, including preparation. Acting early, before a garment has been washed repeatedly, gives you the best chance of success.

When to call in a professional – and what to take from it

This trick has its limits when the fabric is highly delicate, the stain is extremely large or it has already been set by heat several times. For high-quality suits, evening dresses or lined jackets, a professional cleaner is usually the less stressful solution.

The key everyday principle remains the same: first allow the grease to be absorbed, then use gentle heat to set it in motion, and finally remove it in a targeted way. Follow this approach and you will need to throw away favourite items because of an oily splash far less often – whether it happened during a family meal, while cooking or after a quick snack on the sofa.