What temperature should laundry be?
Likewise, people ask, is 30 degrees a cold wash?
Washing on cold temperatures Your washing machine will have the option to wash on cold water, which can be as low as 20°C, but most machines set their cold water settings on 30°C. This setting of 30°C is usually recommended for washing delicate clothes when combined with a delicate cycle, and not on quick wash.
Just so, will 40 degrees shrink clothes?
104F / 40C is a warm wash. Hot shrinks more than warm which shrinks more than cold. Synthetic fabrics (polyester, nylon) don't shrink much. Cotton / denim clothing that is not manufacturer pre-shrunk will shrink even in cold wash and will shrink faster in warm or hot.
'Washing at 30 degrees won't kill all the germs but combined with the laundry detergent should kill plenty of them, and you should be fine washing at this temperature.