User blog comment:RobinCarr/How Does Crystal Production Shutoff/@comment-5432528-20130119153644/@comment-5432528-20130123013214

Update.

Around 2 PM CST - collected the crystals. And Restarted the 3-crystal recipe.

Now it's 8 PM CST, and the store --- Still showing crystals are cooking when I tap on the producer.

(should be completed in 1 day and 5 hours :-)   .... so most likely I am not going to be able to keep my device/game constantly on. But  it is also a good test scenario, one way or another