How to Clean Antique Stone Crocks
Stone crocks are usually non-porous and durable. A high-fired surface will endure cleaning procedures better than the more fragile, low-fired pieces. You can probably clean your crock without damaging it by following a few guidelines. If you have any questions about your antique's fragility, flaws or stains, consult with a conservator before attempting to clean it.
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Instructions
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Brush dust off the crock using a sable brush. Dry cloths could catch on a rough edge. Examine your crock for cracks and other flaws. Water can cause further damage, and some repairs may have used a water-soluble compound. If you notice painted surfaces that differ from the overall texture and tone of the crock, they could indicate a repaired surface.
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Prepare a diluted solution of water and one percent mild detergent. The Henry Ford Museum prefers detergents such as Triton X-100, Vulpex or Orvus. You can also use a one-to-one solution of ethyl alcohol and water. Harsh detergents can ruin painted or gilded decorations.
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Apply the diluted cleaning solution with a soft cloth or cotton balls. Rinse the cleaning solution off the crock with distilled water, again using soft cloths or cotton balls. Make sure your applicator is damp rather than wet. Allow your crock to air dry.
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Tips & Warnings
Repaired areas can be difficult to detect. Examine your crock in bright light; use a magnifying glass to detect tiny cracks.
Never soak antique pottery in water to prevent additional damage to the crock. Uneven drying can create stains.
References
Resources
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