Does humidity affect the quality of paper products?
Table of Contents
Does humidity affect the quality of paper products? Yes, humidity is one of the main causes of declining toilet paper and paper towel quality during storage. Damp paper loses strength, tears more easily, and prolonged exposure to moisture can cause a musty smell or mold to develop. Proper storage in a dry place directly extends the product’s usability.
Proper conditions are essential for storing paper products, but it is even more important to choose high-quality paper towels and toilet paper that meet the needs of your business premises. To learn how to choose them, read more on our blog: Paper products: A complete guide to types, systems, and applications.
Why is paper sensitive to humidity?
Paper is a hygroscopic material, which means it naturally absorbs and releases moisture depending on the humidity of its surroundings. Hydrogen bonds connect cellulose fibers and hold the paper structure together. When the fibers absorb moisture from the air, these bonds weaken, the fibers swell, and the paper loses some of its mechanical strength and becomes more prone to tearing.
This process is reversible under moderate conditions, but prolonged exposure to high humidity permanently damages the paper structure.
What happens to toilet paper and paper towels in humid rooms?
In areas with constant humidity, near showers, in basements, or in poorly ventilated storage rooms, toilet paper and paper towels become softer but weaker. They lose some of their wet strength, tear more easily during use, and in extreme cases, may develop a musty smell or mold on the surface of the roll.
Thinner, single-ply paper and recycled paper products are especially sensitive because they contain shorter fibers with fewer contact points for hydrogen bonding.
Does a damp dispenser affect the consumables inside it?
Yes. If water, condensation, or steam reaches the consumables, it can affect their properties. A closed dispenser housing provides better physical protection against direct contact with droplets, splashes, and other external influences than paper that remains openly exposed to the surrounding environment.
How does paper weight affect resistance to humidity?
Higher-weight paper made from virgin cellulose has a denser fiber structure and more hydrogen bonds per unit of surface area, so it absorbs moisture more slowly and retains its strength for longer. Lower-weight paper reacts more quickly to changes in humidity and loses its structure after a shorter period of exposure.
How should paper products be stored to preserve their quality?
Paper products should be stored in a dry, cool place, away from direct contact with sources of steam and moisture, preferably in their original packaging until use. In high-traffic facilities, reserve supplies should be kept in a separate storage room rather than in the more humid restroom area itself.
Recommended products for humid conditions
For facilities with higher humidity, such as kitchens, restrooms near showers, and basement areas, we recommend higher-weight paper and closed dispensers that reduce direct contact between the material and the surrounding air.
The following LUU products combine both factors and are suitable for such conditions.
Table: How does humidity affect paper products?
| Storage conditions | Possible effect on paper | What to do |
| Dry and well-ventilated room | Paper retains the properties intended for the product | Keep it in the original packaging until use |
| Occasionally elevated humidity | Paper may absorb moisture from the air and change in strength | Move supplies away from sources of steam and water |
| Persistently humid room | Higher risk of structural weakening, deformation, and unpleasant odors | Move supplies to a dry storage area |
| Direct contact with water or condensation | Paper may quickly lose its functionality | Do not use such material and inspect the storage area |
| Humid restroom area | Reserve paper is more exposed to changes in humidity | Keep only the necessary amount in a closed dispenser |
Does humidity affect the quality of paper products? – FAQ
How can you tell if toilet paper or paper towels have been damaged by moisture?
The paper becomes softer but more brittle, may develop a slightly yellowish tint or a musty smell, and tears more easily when pulled than is normal for that product.
Is recycled paper more sensitive to humidity than virgin cellulose paper?
Yes. Recycled paper contains shorter fibers with fewer contact points for hydrogen bonding, so it loses strength more quickly in humid conditions than paper made from longer virgin fibers.
Does sealed packaging fully protect paper from humidity?
It reduces the risk but does not eliminate it completely. Plastic packaging is not airtight, so prolonged storage in a very humid room can still affect the quality.
According to the European Tissue Symposium, the European association of tissue product manufacturers, plastic packaging plays a key role in protecting paper products from moisture, dirt, and damage during transport and storage. However, this protection is not absolute. The packaging is not airtight, so prolonged storage in a very humid room can still gradually affect the quality of the material inside.
Paper quality begins long before first use. The right choice, proper storage, and a suitable system preserve its properties where they are needed most. Choose paper products that suit the environment in which they are used.
About the author:
Milja Tonić – SEO Content Strategist & Copywriter
Milja Tonić is an SEO Content Strategist and Copywriter at LUU.
She specializes in creating professional content in the fields of professional hygiene, paper products, dispensers, and facility management.
The expert articles on this blog result from detailed research, an analytical approach, and editorial work, while applying current SEO standards and best practices for Google Search and AI search (SGE/AI Overview).
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