The cleaning and maintenance of vegetable tanned leather labels (genuine leather that has not been deeply chemically treated, retaining the natural texture of the leather, will gradually change color and form patina with use, but it is easy to produce irreversible changes when exposed to water, grease, and chemicals) requires special attention to “mildness” and “protectiveness” to avoid destroying its natural characteristics. The following is a detailed guide:
1. Cleaning: Focus on “less washing and local treatment”
The biggest feature of vegetable tanned leather labels is that they are easy to change color when exposed to water (uneven water stains may appear) and have strong hygroscopicity, so cleaning requires extreme caution:
1. Daily light cleaning (dust, floating dirt)
Tools: soft brush (wool brush or boar bristle brush, moderate hardness), dry cotton cloth.
Method:
Use a brush to gently sweep away the dust on the surface of the leather label along the texture, and avoid rubbing hard (the surface of vegetable tanned leather is not coated, and excessive friction will cause local wear and whitening).
If there are slight fingerprints or stains, use a dry cotton cloth to absorb them by “patting” rather than “wiping” to reduce irritation to the leather.
2. Stubborn stains (local oil stains, small amounts of water stains)
Oil stains:
Immediately use a clean paper towel to gently press and absorb the surface oil (do not wipe it, otherwise the oil stain will spread), then let it stand for 1-2 days to allow the oil to partially penetrate into the leather (vegetable tanned leather has a certain oil absorption capacity, and slight oil stains may fade naturally over time).
If the oil stains are obvious, you can dip a very small amount of special vegetable tanned leather cleaner (non-acidic, non-pigmented), dip it with a cotton cloth and squeeze it until it is almost dry, gently wipe the stain in a circular motion, then use a dry cotton cloth to absorb the remaining detergent, and place it in a ventilated place to dry.
Water stains:
If it is accidentally stained with water, immediately use a cotton cloth to absorb the water (do not wipe it to avoid the spread of water stains), and then let it dry naturally in the shade (never expose it to the sun or blow it with a hair dryer). After drying, light water marks may be left, which is a natural characteristic of vegetable tanned leather, and can be gradually faded through the penetration of oil in subsequent use (water marks cannot be completely eliminated, and their natural changes must be accepted).
3. Absolutely prohibited cleaning methods
Do not use soap, washing powder, detergent and other acidic and alkaline cleaning agents (which will damage leather fibers, causing hardening and fading).
Do not soak or wet a large area with water (which will cause the leather label to deform, delaminate, or cause large areas of uneven discoloration).
Do not use solvents such as alcohol and gasoline (which will dissolve the natural oils in the leather, causing it to dry and crack).
2. Maintenance: Focus on “replenishing oil, preventing dryness, and protecting color”
The natural oil of vegetable tanned leather will be lost over time, causing hardening and cracking. The core of maintenance is to replenish natural oil and reduce external stimulation:
1. Regularly replenish oil (key step)
Oil selection: You must use natural oils without pigments and fragrance, such as pure mink oil, horn oil, beeswax (need to be melted before use), and special vegetable tanned leather maintenance oil (avoid products containing mineral oil and silicone oil, which will clog pores).
Method:
After cleaning and drying the leather label, dip a small amount of oil with cotton cloth (it is better to use less rather than more), apply it evenly on the surface, and let it stand for 10-15 minutes to allow the oil to penetrate.
Wipe off excess oil on the surface with a clean cotton cloth (avoid residue that causes greasy feeling or dust).
Frequency: 1-2 times a month is enough according to the frequency of use (excessive oiling will cause the leather label to soften, deform, or the color is too dark).
2. Daily use protection
Avoid contact with pollution sources: Vegetable tanned leather is very easy to absorb color (such as dark clothes, dyes) and grease (such as cosmetics, food oil). When using, avoid direct contact between the leather label and these substances to prevent staining (almost impossible to remove after staining).
Control environmental humidity: Vegetable tanned leather is afraid of dryness (easy to crack) and moisture (easy to mold). It is recommended to keep the storage environment humidity at 40%-60%. When it is wet, you can put a small amount of desiccant (avoid direct contact with the leather label), and when it is dry, you can spray water around (stay away from the leather label) to increase the humidity.
Reduce friction: The surface of vegetable tanned leather has weak wear resistance. Avoid frequent friction of the same part (such as the leather label of the backpack rubbing against clothing) to prevent local lightening or fluffing.
3. Long-term storage treatment
Before storage, make sure the leather labels is completely dry and apply a thin layer of maintenance oil (to form a protective film).
Wrap the leather label with clean cotton paper or gauze (avoid direct contact with other items to prevent staining or indentation), and put it in a ventilated cotton bag (do not use plastic bags, which are airtight and prone to mold).
Avoid folding or squeezing, store flat or hanging to prevent irreversible creases.
3. Special case handling
Dyeing / color transfer: If the leather labels is stained with other colors, wipe it immediately with a dry cotton cloth. If it has penetrated and cannot be removed by cleaning (the porosity of vegetable tanned leather causes color residue), the color can be gradually evened out by subsequent oiling (considered as part of the natural patina).
Cracking: Minor cracking can be softened by oiling the leather (multiple small amounts of oiling to allow the oil to penetrate the cracks). Severe cracking cannot be repaired and the intensity of use needs to be reduced.
Moldy: If it is moldy due to moisture, gently brush off the mold with a soft brush, then wipe it with a dry cotton cloth, place it in a ventilated place to dry (avoid direct sunlight), and finally oil it to restore the oil.
The charm of vegetable tanned leather labels lies in the “natural texture that changes with use”. The core of maintenance is not to pursue a “new state”, but to make it evenly discolored and soft through reasonable care. Accepting slight natural wear (such as water marks and patina) is also part of its unique style. If it is the first maintenance, it is recommended to test the oil compatibility in the hidden area of the leather label before comprehensive treatment.
FAQ
Vegetable-tanned leather is genuine leather that has not undergone deep chemical processing, meaning it retains its natural, highly porous texture. Because of this, it is highly hygroscopic and extremely prone to uneven discoloration or water stains when exposed to large amounts of liquid. For daily maintenance, you should stick to localized cleaning—gently dusting with a soft brush or using a dry cotton cloth to “pat” away light dirt instead of rubbing hard.
If the label gets wet, you should immediately press a clean cotton cloth against it to absorb the moisture (do not wipe, as this spreads the stain) and let it dry naturally in a well-ventilated, shaded area. Avoid using hair dryers or direct sunlight, which can cause cracking. Any remaining light water marks will gradually fade over time as the leather absorbs natural oils during subsequent use.
Because vegetable-tanned leather loses its natural oils over time, it can harden and crack if left unmaintained. To prevent this, you should regularly condition the leather label 1 to 2 times a month, depending on how frequently the garment or item is used. Applying too much oil can cause the leather to soften unnaturally, lose its shape, or turn excessively dark.
When selecting a conditioner, it is crucial to use natural, pigment-free, and fragrance-free options such as pure mink oil, horn oil, beeswax (melted before use), or specialized vegetable-tanned leather maintenance oils. You must completely avoid any products containing mineral oil or silicone oil, as these synthetics will clog the leather’s natural pores and degrade the fibers. For best results, apply a very small amount evenly with a cotton cloth, let it sit for 10–15 minutes, and wipe away any excess residue.