Kilner Muslin Square Uses: Straining, Covering & Cleaning

Quick answer

A Kilner Muslin Square is a 50 x 50cm, 100% cotton cloth with hemmed edges, made for straining jellies, soups, yoghurt, and wine. You can also use it to cover sourdough, wrap food, or line a colander. Rinse it immediately after use, machine wash it, and air-dry it so it stays reusable.

What the Kilner Muslin Square is actually for

The Kilner Muslin Square is a 50 x 50cm piece of 100% cotton with hemmed edges. That size is large enough to line a colander or hang over a bowl for dripping, and the hemmed edges stop the cloth fraying when you wring it out. It is machine washable, so it is designed to be reused rather than thrown away after one batch of jelly. If you have seen muslin described as cheesecloth, the idea is similar, but this square is cut and hemmed as a kitchen cloth rather than sold as a loose grade of fabric.

Straining jam, jelly, and other liquids

For jam and jelly, the muslin does the job of holding back skins, seeds, and pulp while the clear liquid drips through. Dampen the cloth first, then line a sieve or colander set over a deep bowl. Spoon the cooked fruit in, gather the corners, and let it drip without pressing if you want a clear jelly. If you press or squeeze, you push pulp through and cloud the result. For yoghurt, spoon it into the centre of the cloth, tie the corners to a wooden spoon across a bowl, and let the whey drain in the fridge. The same setup works for soups and wine, though wine may stain the cloth over time.

Covering sourdough and wrapping food

A muslin square makes a breathable cover for a bowl of sourdough. It keeps dust and insects out while letting the starter breathe, which is useful during long rises. Dampen the cloth slightly if your kitchen is dry, and secure it with a rubber band or string rather than tucking it tight. For food wrapping, use the muslin to cover bowls of dough, rising bread, or salads instead of cling film. It is not airtight, so it is not a replacement for a clip-top jar or storage container when you need a seal.

Cleaning and storing your muslin square

Rinse the cloth in cool water straight after use to stop fruit pulp or dairy drying into the fibres. Then machine wash it on a normal cycle with your usual detergent. Avoid fabric conditioner, because it coats the cotton and can affect how well the cloth strains. Air-dry it fully before folding and storing it in a dry cupboard. If the cloth picks up a stain from berries or wine, wash it promptly rather than letting it sit. A clean, dry muslin square can be reused many times.

Step-by-step: using and caring for your muslin square

1. Dampen the cloth before straining: Run the muslin under clean water and wring it out. A damp cloth sits against the sieve more evenly and stops fine pulp slipping through dry gaps. Checkpoint: the cloth should be damp, not dripping.
2. Line your sieve or colander: Lay the muslin over a sieve set above a deep bowl, letting the edges overhang. For yoghurt or jelly, gather the corners and tie them to a spoon across the bowl so the liquid drips freely. Mistake to avoid: don't let the cloth touch the drained liquid, or it will re-wick back up.
3. Let it drip without pressing: Leave the fruit, yoghurt, or soup to strain under its own weight. Pressing or squeezing forces pulp through and clouds the result. If you need it faster, accept a cloudier liquid rather than squeezing hard.
4. Rinse immediately after use: Rinse the muslin in cool water as soon as you finish, before pulp or dairy dries into the fibres. Mistake to avoid: leaving it in the sink overnight, which sets stains and smells.
5. Machine wash and air-dry: Wash the cloth on a normal cycle with your usual detergent. Skip fabric conditioner, which coats the cotton. Air-dry it fully before folding. Checkpoint: the cloth is completely dry before it goes back in the cupboard.

Product facts

• Kilner Muslin Square, 50cm: The 50 x 50cm Muslin Square is 100% cotton with hemmed edges and is ideal for straining jellies, soups, yoghurt or wine through. The large size and hemmed edges make it practical for lining a colander or hanging over a bowl without fraying.