When members of a species find themselves living at their optimum temperature, their growth rate is at its maximum value. Bacteria that grow at temperatures in the range of -5oC to 30oC, with optimum temperatures between 10oC and 20oC, are called psychrophiles.

Bacteria grow most rapidly in the range of temperatures between 40 °F and 140 °F, doubling in number in as little as 20 minutes.

The temperature range over which a microorganism grows reflects the temperatures at which its enzymes function. Within this range, three cardinal temperatures can be identified: minimum, optimum and maximum growth temperatures.

Temperature – Bacteria grows rapidly at 37 degrees c, however, growth occurs between the temperature’s 5 degrees c and 63 degrees c which is known as the danger zone. Food – Foods containing large amounts of protein and water (High risk foods) are the best medium for bacterial growth.

For example, organisms with an optimum temperature near 37 degrees (the body temperature of warm-blooded animals) are called mesophiles….

Lysol Laundry Sanitizer is specially designed to sanitize your laundry and to kill 99.9% of bacteria*. It can be used on most washable fabrics including: Baby Clothes, Gym Clothes, Undergarments, Towels, Bedding, and Delicates.

When to use a cold wash cycle? If you’re not washing your bright colours and dark loads on a cold wash setting, you may want to start doing so. Washing your garments on temperatures as low 20°C or as 30°C will protect colours from running while minimising the risk of shrinkage.

These little dots represent the temperature range you should wash this item in. The more dots on the tag, the hotter the water should be—one dot represents cold, or 30 degrees Celsius; two dots for warm, or 40 degrees; three dots for hot, or 50 degrees; and four dots for extra hot, or 60 degrees.

Yes, it is, but not by as much as you might think. According to the Energy Saving Trust, washing clothes at 30 degrees uses around 40% less electricity over the course of a year compared to higher temperatures.

What temperature is classed as a cold wash? 20°C to 30°C can be classed as cold temperatures to wash garments on. Cold washes benefit clothes that have dark or bright colours that can easily run.

When (and Why) Cold Water Washing Works Cold water is fine for most clothes and other items that you can safely put in the washing machine. Not all stains respond to warmer water. For example, blood and sweat can actually set into fabric in hot water. Also, hot water tends to shrink, fade, and wrinkle certain fabrics.

Simply put, the higher the temperature of the washing, the more germs killed, which is why people may be tempted to use a higher heat. It has long been advised by the NHS that all underwear, towels and household linen should be washed at 60 degrees – or at least 40 degrees – with a antibacterial laundry product.

A cold wash means no heating of the water. Most washing machines come with a cold wash setting which is a suitable option for delicate clothing.

Even if you’re trying to remove a stain, cold water is still a better option as detergents actually become less effective once the water temperature reaches above 75 degrees. This means a hot-water cycle can actually help stains set into clothing, and may damage fabrics and colors.

Fact: Hot Water is an Effective Solvent When water heats up, its molecules move faster and bounce off each other more. This creates more space between the molecules that can be filled with dissolved solvents. As a result, hot water can dissolve much more material than cold water.

Despite popular belief, washing your towels with cold water is the best way to keep them clean, soft and fluffy. Cold-water washing can help you save money and extend the life of towels, clothes and bedding. On the other hand, hot water can contribute to shrinkage, destroy elastic, fade colors and weaken fibers.

Washing dishes in hot water actually lifts away food and grime from dirty dishes, which reduces the amount of time you have to spend scrubbing. As a result, you spend less cash on dish cleaning products, and you’ll get out of the kitchen quicker.

Should towels be washed in cold or hot water? Towels should be washed in warm water to help kill bacteria and potential mould. Warm water is ideal for coloured towels, while hot water is best for white towels.

around 40 degrees

The best way to prevent germs from growing on your bath towel is to let it dry completely between each use, and wash it frequently. The Cleaning Institute recommends washing bath towels after three uses.

Add the distilled white vinegar to the fabric softener dispenser or add the vinegar manually at the beginning of the rinse cycle. The mild acetic acid in vinegar also acts as a whitener and brightener for gray, dingy clothes.