I have been doing a lot of work with aluminum and vaccuming up the chips. My concern is Spontaneous Combustion. Is there any chance that the cutting fluid and the aluminum chips can cause a fire on their own? Aluminum is an excellent oxidizer and the cutting fluid (Tapmagic) is organic based. An oxidier and a fuel equal fire.

In the past there has been a problem with oily rags and they were to be stored in metal can because of the chance of Spontaneous Combustion. Do I need to worry or should I make it a habit to empty the vaccum every night?

Appreciate thoughts. Thanks.