In your family may have invented the first wheel.

Friction in any form will create heat....If ice can prevent that from happening....TRY it.

QUESTION>>>>Why do people want to take a simple concept....and ALWAYS try to make it better......or FASTER.....

Suggestion.....Take a knife and cutting board and just CUT the wheatgrass into fine pieces.....put it into your salad or whatever....and eat it......?