Kilner® Muslin Squares: Uses, Care, and How to Choose the Right One

Quick answer

For most home kitchens, a pack of medium-weight muslin squares around 50 cm square is the most versatile choice. Use them for straining stocks, making nut milk, covering dough, and bundling herbs for infusions. If you mostly preserve jams and jellies, choose a finer weave for clearer results.

Muslin squares are one of those humble kitchen tools that quietly solve dozens of problems. Whether you are straining a consommé, making soft cheese, or covering a bowl of fermenting vegetables, a good piece of muslin earns its place in the drawer. Kilner® muslin squares are woven from 100% cotton and are designed to be reused many times, making them a practical alternative to disposable paper towels or coffee filters.

This guide covers the main uses for Kilner® muslin squares, how to clean and store them so they last, and a simple set of rules to help you pick the right size and weave for the job.

Everyday uses for Kilner® muslin squares

The most common use for a muslin square is straining. Line a sieve with a single layer to catch seeds and pulp when making jams, jellies, and fruit syrups. For a finer, clearer result, fold the square into two or four layers. This works well for stocks and consommés, where you want a crystal-clear liquid without any sediment.

Beyond straining, muslin squares are great for bundling aromatics. Fill a square with peppercorns, bay leaves, and thyme, then tie it with kitchen twine and drop it into a simmering pot. You get all the flavour without fishing out loose herbs later. They also work well for making nut milk, sprouting seeds, and covering bread dough or ferments while allowing air to circulate.

• Use a single layer for coarse straining and double or quadruple layers for finer results.
• Tie herbs and spices into a bundle for easy removal after cooking.
• Cover jars or bowls with muslin to keep out dust while letting ferments breathe.

How to care for your muslin squares

Kilner® muslin squares are reusable, but they need proper care to stay hygienic and effective. After each use, rinse them in cold water immediately to remove food particles and prevent stains from setting. Then wash them in hot, soapy water. You can use a mild detergent or simply boil them in water for a few minutes to sanitise.

Avoid using fabric softeners or bleach, as these can leave residues that affect the taste of food or break down the cotton fibres. Air-dry the squares completely before storing them in a dry place. If they develop a musty smell, soak them in a solution of water and white vinegar before washing.

• Rinse immediately after use to prevent staining.
• Boil muslin squares for a few minutes to deep-clean and sanitise.
• Store completely dry to avoid mildew.

Choosing the right muslin square size

Kilner® muslin squares come in a few sizes, and the right one depends on what you plan to do with them. Small squares around 25 cm are handy for covering small bowls, straining single portions, or bundling herbs. Medium squares around 50 cm are the most versatile: they line a standard sieve, wrap a loaf of bread, or bundle a generous amount of aromatics.

Large squares of 75 cm or more are useful for bigger tasks like straining large batches of stock, making cheese, or covering large bowls during fermentation. If you are not sure, start with a pack of medium squares. They cover most everyday kitchen jobs without taking up too much drawer space.

• 25 cm: small tasks, single servings, herb bundles.
• 50 cm: the all-rounder for sieves, bread, and most recipes.
• 75 cm and up: big batches, cheese making, and large ferments.

Decision rules for choosing your muslin square

• If you strain stocks and soups often: Choose a finer weave and a medium or large size so you can fold it for multiple layers. A single layer may let sediment through. Go for 50 cm or larger with a fine weave.
• If you mainly make jams and jellies: You need a muslin that can handle hot liquids and repeated use. A medium square is enough for most batches, but a larger one helps when working with big pots. Medium 50 cm is a safe starting point.
• If you use muslin for covering ferments: A looser weave allows airflow, which is important for ferments. Make sure the square is large enough to cover the jar opening with some overhang. Measure your jar mouth and add 10 cm for a secure fit.

Related Kilner® products

• Kilner Facetted Clip Top Jar 0.95 Litre: The Kilner 0.95 Litre Clip Top Jar is perfect for preserving healthy, home grown foods and pantry storage. The perfect size for preserving chutneys and storing dry foods. Pair this jar with a muslin square for straining chutneys or covering the jar while cooling, then store the finished preserve in the same jar.
• Kilner® Round Glass Clip Top Storage Jar 0.35 Litre: Kilner® Round 0.35L Clip Top Glass Storage Jar has the Kilner brand embossed in the front and is finished with an orange rubber seal. The jars are perfect for storing dry food. Use a muslin square to keep spices or dried herbs fresh inside this small jar, or cover the jar with muslin during short-term storage.

Who should buy Kilner® muslin squares

Best for

• Home cooks who strain stocks, make nut milk, or bundle herbs regularly.
• Preservers who want a reusable, natural cloth for jams and jellies.

Not for

• Those who prefer disposable paper filters for convenience and minimal cleanup.

Kilner® muslin squares are a simple, reusable tool that makes many kitchen tasks easier. Choose the size and weave based on what you cook most, care for them properly, and they will serve you for years. Start with a medium square if you are unsure, and you will quickly find it becomes a staple in your kitchen.