Does MODUM soap work in cold water, or do I need hot water? — Liquid Laundry Soap "Classic Household Soap", 925 ml - Modum

Yes. The product information states that the formula works even in cold water. In practice, this means you can start washing up or wiping surfaces without waiting for hot water, because the cleansing action does not depend on heat.

The surfactants in the soap — the washing agents that lift grease, food residue, and everyday dirt — do their job in normal tap water. Warm or hot water is not required, although it is still fine to use if you have it. Warm water often makes greasy pans feel easier to clean because fats stay fluid and rinse away more easily.

For a quick wash-up, cold water can save time. For a sink full of heavily soiled dishes, many people will still prefer warm water for comfort and for faster rinsing. Cold water is a capability, not a limit: you are not doing anything wrong by using hot water when it suits you.

When you use the soap with cold water for surface cleaning, wipe the area with a cloth dampened with soapy water, then remove the soap with a separate clean damp cloth. The soap dissolves well in water, including cold water, so there is no need to mix a special solution in advance.