How to Blanch Spinach Written by Aini Amin on December 12, 2015 in Quick tips It is very easy to blanch Spinach, but I saw many people doing this with wrong way and they loose all nutritional value of spinach. So here is the perfect way to blanching spinach. Facebook Pinterest 1. Take Spinach, separate leaves from stems, but keep some part of stem with leaves. Now wash them.2. Now take a pan add water, let it boil , add washed spinach.3. Let it boil for 3-4 minutes.4. Drain all water.Let the spinach cool in sieve. Then chop it and use it.Note…. I saw many people keep spinach in cold water after draining it from hot water, thats the wrong way, just drain it and let it cool it will save its nutritional value and taste.