Never, never, never, ever use ice or ice cubes to water an orchid especially a Phalaenopsis that you show images of. The ice cube method of watering is wrong on so many levels.
Most orchids like to be watered thoroughly and then dry out to some level based upon what type of orchid they are. Water should be lukewarm, NOT ice cold.
An ice cube would not only water with ice cold water, it would never water deeply in the pot reaching all of the roots.
Orchids generally do not grow in "soil" of any type. We orchid growers refer to it as "media".
Your images show the orchids in Sphagnum moss. This is quite honestly not the best media for beginners growing orchids BUT it is the easiest media for orchid vendors to use as they sell their plants. Your Phalaenopsis, depending upon environment in the home should be watered once every 5-7 days, never drying out completely for too long.
The Orchid Family is the largest plant family on the planet with over 30,000 species and a few hundred thousand hybrids. It is crazy to think one watering method could possibly suffice for all!
The reason you see references to ice cubes is that in today's society people rushing here there and everywhere, they don't want to be patient and learn the proper watering method for orchids, instead this ice cube method was devised in order to make it sound so darn easy that even a moron could do it! So the person looks at the orchid and sees ice cubes, and thinks "oh I can do that!!" AND buys the plant. The seller could care less if it lives or dies because they have their money.
