How to Clean Mouldy Vinyl Records

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Finding mould on records is common, especially with collections that spent years in a garage, basement or loft. White fuzzy spots, a grey haze or a musty smell are the usual signs. The good news is that mould on the vinyl surface can usually be cleaned off, and many mouldy records play well afterwards. The bad news is that mould spreads, can affect jackets and sleeves, and is not something to breathe in. This guide covers how to clean mouldy vinyl safely and how to stop it coming back.

Safety first

Mould releases spores that can irritate the lungs and trigger allergies or asthma. If you have a heavy mould problem, a respiratory condition or a weakened immune system, take extra care or ask someone else to do the cleaning. Sensible precautions include:

• Working outdoors or in a well-ventilated room.
• Wearing disposable gloves.
• Wearing a dust mask rated for fine particles, especially when brushing off dry mould.
• Washing your hands and wiping down surfaces afterwards.

Step 1: quarantine

Keep mouldy records separate from the rest of your collection until they are cleaned and fully dry. Mould spores travel and will happily settle on clean records and jackets in a humid room.

Step 2: remove the record from its sleeves

Take the record out of its inner sleeve and jacket. Paper inner sleeves with mould are best thrown away and replaced. Mould feeds on paper and card, so it often starts there. Jackets are covered separately below.

Step 3: dry-remove loose growth

Outdoors, use a soft brush to gently remove loose, fuzzy growth from the record surface. Brush along the groove, not across it, and keep pressure light. The goal is to take off as much loose material as possible before it gets into your wash water. Use a brush you do not mind dedicating to mouldy records, or clean it thoroughly afterwards. Do not use your everyday carbon fibre brush, or you will spread spores to your clean records.

Step 4: wet-clean

Use a proper wet-clean method with distilled water and a record cleaning fluid. A manual washer such as the Spin-Clean works well because it scrubs both sides at once. With mouldy records:

• Use a fresh bath and change it more often than normal. Mould residue dirties water quickly.
• Rotate the record a few extra times.
• For heavily affected records, wash twice: once to remove most of the mould, and once in a fresh bath.
• Keep the label above the water. Labels can carry mould too, but soaking them will ruin them. Clean labels with a barely damp cloth instead.

An ultrasonic cleaner can also work, but heavily mouldy records will quickly cloud a small tank. Many owners pre-clean them in a manual washer first. See our HumminGuru review.

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Step 5: rinse and dry thoroughly

A distilled-water rinse after the fluid wash removes loosened residue. Then dry the record fully. Moisture is what mould needs, so do not sleeve a damp record. Wipe gently along the grooves with a clean lint-free cloth, then stand the record upright in a rack until completely dry. Read how to dry records after washing.

Step 6: new inner sleeve

Put the clean, dry record into a new inner sleeve. Anti-static poly-lined sleeves are a good choice because they do not shed paper fibres and resist moisture better than plain paper.

What about the jacket?

Jackets are harder. Card absorbs moisture and mould can grow into the fibres. For light surface mould:

• Outdoors, gently brush off loose growth with a soft dry brush.
• Wipe with a barely damp microfibre cloth. Do not soak the card.
• Let the jacket air out in a dry, shaded place. Avoid direct sunlight, which fades artwork.
• Once dry, put it in an outer sleeve to protect it.

Heavily mouldy, damp or stained jackets may never fully recover. If a jacket is valuable, consider professional conservation advice. Otherwise, a replacement generic jacket may be the practical choice. Our guide to cleaning album covers has more detail.

Will the record sound OK?

Often, yes. Mould usually sits on the surface. Once removed, many records play quietly. Sometimes mould leaves marks or residue that cause extra surface noise even after cleaning. A second wash helps in some cases. Persistent clicks at the same spot every rotation usually point to physical damage rather than dirt. See why vinyl crackles after cleaning.

Do not forget the stylus

After playing a newly cleaned mouldy record, clean your stylus. Any residue left in the groove will collect on the stylus tip. Read how to clean a turntable stylus.

Preventing mould

• Keep humidity moderate. Mould thrives in damp air. Store records in a living area rather than a basement, garage or shed. A cheap hygrometer helps you check.
• Avoid temperature swings, which can cause condensation.
• Let air circulate. Do not pack records against an outside wall or in sealed boxes in a damp space.
• Use poly-lined inner sleeves and outer sleeves to keep dust and moisture off.
• Check stored boxes every few months.

For warm climates, see how to store records in a hot apartment.

When to walk away

Not every record is worth the effort. If a common record is heavily mouldy, has a ruined jacket and is cheap to replace, buying a clean copy may be the better option. Keep the effort for records that are rare, valuable to you, or hard to find in better condition. If you buy a box of records at a sale and many show mould, sort them by value before you start, and clean the ones you really want first while your water and patience are fresh.

How to tell mould from other marks

Not every white mark is mould. Here are the common look-alikes:

• Mould: fuzzy or powdery spots, often in patches, sometimes with a musty smell. It may be on the record, the sleeve and the jacket.
• Dried residue: streaks or a haze from an earlier cleaning with the wrong product, or drying tap water. It looks flat rather than fuzzy.
• Sleeve scuffs: fine hairline marks from paper sleeves, called paper scuffs. They do not wipe off and are usually harmless to sound.
• Dust: loose and easily brushed away.

If you are not sure, a careful wet clean deals with both mould and most residues, so the method is the same.

A note on cleaning tools after mould

Anything that touched mouldy records can carry spores. Wash cloths on a hot cycle, rinse your washer basin and brushes thoroughly, and let everything dry fully before you use it on clean records again. Some collectors keep a separate set of brushes and cloths just for mouldy finds, which is a simple way to avoid cross-contamination.

Checking a new purchase

When buying used records, check them before they join your collection. Slide the record out under good light and look at both sides. Smell the jacket. Look inside the jacket and at the inner sleeve. Anything with signs of mould goes into quarantine until it is cleaned.

How long does it take?

For a single lightly mouldy record, expect about half an hour including brushing, washing, rinsing and a first drying stage, plus extra time standing in a rack. For a box of affected records, plan several sessions. It is better to clean a few records thoroughly each day than to rush through a stack with tired water and damp cloths. Leave cleaned records to dry overnight before sleeving if the room is humid.

Patience pays off: rushing the drying stage is the most common reason mould returns after a clean.

FAQ

Can mould permanently damage vinyl?

Mould mostly sits on the surface and can usually be cleaned off, but it can leave marks or residue on some records. Jackets and paper sleeves are more easily damaged.

Should I use bleach on mouldy records?

No. Bleach and household mould sprays are not designed for vinyl and can damage records and labels. Use distilled water and a record cleaning fluid.

Is it safe to play a mouldy record before cleaning?

It is better not to. The stylus will drag mould and grime through the groove, and spores will spread. Clean it first.

Can I save the original inner sleeve?

Printed inner sleeves can be valuable. If you want to keep one, let it dry out, brush it gently outdoors, and store it separately from the record in its own sleeve.