![]() Smoke grenades are commercially available at quite a cost - and I personally don't like the different colours because they are obviously fake and only good for novelty shoots - though occasionally that is fun - but use them wisely as you get about a minute for your $20. I had a 5kg pot of molten wax and potassium nitrate and sugar smoke bomb mix turn into a rocket engine in my garage - totally my fault of course but also an indication of why it is necessary to find an alternative - my car's resale value is also lower due to the burn marks on the paint. These methods can be a bit of a fire hazard and even dangerous if not done properly. ![]() I have made plenty of potassium nitrate smoke bombs and they create nice billowing smoke for a while or, if packaged correctly, a 3-5 minute constant output of smoke.
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