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Spraying Chocolate: Equipment, Materials, and Techniques


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13 minutes ago, pastrygirl said:

 

That IS down.  Normally I spray around 60 psi.

 

13 minutes ago, pastrygirl said:

 

That IS down.  Normally I spray around 60 psi.

Ah - ok then. Experiments will have to continue on my end. 

 

Wonder if I start with the Roxy and Rich as the first variation.

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I am wondering how to get a metallic/gold finish when spraying chocolate showpieces. When I mix gold powder with cocoa butter it looks amazing when melted, but when it crystalizes it seems like the gold disappears leaving a dull brown color. I am looking for a gold finish like Amaury Guichon on his telescope; 

 

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  • 2 weeks later...

OK, so I'm gonna break down and invest in a new airbrush.  I may have mentioned before all I have is one for cake decorating, which isn't that powerful.  The old KopyKake I had did work somewhat with a Badger 250, but I tried it with a different gun, and it was cold and the cocoa butter clogged it up, so it did a blow back I'm assuming and there was a loud pop and now the control knob doesn't work anymore.  I hated that thing anyway. The other one is by Dinky Doodle, and is made for cakes and cookies.  It's a teeny thing.

 

So, here are a couple of things I'm looking at if anyone has the time for feedback.

https://spraygunner.com/grex-tritium-ts-micro-spray-gun-set-0-7mm/  

https://www.amazon.com/gp/product/B07YBG8XQJ/ref=ewc_pr_img_1?smid=A1DXN92KCKEQV4&psc=1

https://www.amazon.com/gp/product/B00WM1VPKE/ref=ewc_pr_img_2?smid=ATVPDKIKX0DER&psc=1

 

I'm looking at maybe spending around $500.  I'm not going to be doing major production from what I can fore see.  When we move and I have my separate kitchen set up, I might try to do some things for holidays, etc.  I'm mainly going to be focusing on cakes, but offering chocolates as wedding favors.  

But, if I'm going to airbrush, I want to be able to do it with the least amount of hassle (if that's possible with cocoa butter :) ).

 

TIA!

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@RWood, I assume you have read through the discussion in this thread, particularly on the Grex.  I strongly recommend it, the 0.7mm needle is what you need, but I would get the gravity flow, not the side.  With the cup on the side, you are adding an unnecessary extra path for the cocoa butter to travel, and cocoa butter needs as straight a path as possible.

 

The California Airtools compressor should work fine for what you want.  If you think you will ever do more with chocolate and require a spray gun, you might want to think more air capacity, but this one is fine for an airbrush.  The other compressor does not have enough capacity to keep your airbrush going without interruption.  

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18 minutes ago, Jim D. said:

@RWood, I assume you have read through the discussion in this thread, particularly on the Grex.  I strongly recommend it, the 0.7mm needle is what you need, but I would get the gravity flow, not the side.  With the cup on the side, you are adding an unnecessary extra path for the cocoa butter to travel, and cocoa butter needs as straight a path as possible.

 

The California Airtools compressor should work fine for what you want.  If you think you will ever do more with chocolate and require a spray gun, you might want to think more air capacity, but this one is fine for an airbrush.  The other compressor does not have enough capacity to keep your airbrush going without interruption.  

 

Yes, I read the thread and was still cross eyed ☺️.

Thank you for the input. I will look at the Grex again, I didn't realize this was on the side. 

I don't think I will ever need something like a Fuji, so I think the CAT compressor is fine.

I appreciate your help!

 

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This is the gravity feed grex, with the cup on top. https://spraygunner.com/grex-tritium-tg7/

 

I initially bought mine with the 0.3mm fittings, that was slow going, eventually upgraded to 0.5 and finally the 0.7.  It's not hard to change out the needle and nozzle, if cake colors are more fluid than cocoa butter you might want to start in the middle.  Do you know what size your other airbrushes are?  https://spraygunner.com/grex-0-5mm-nozzle-kit-tk-5/

 

As for keeping the cocoa butter from clogging up, that's always a challenge.  I keep my gun warm in my ez temper or an extra melter and warm it with a hairdryer as needed to keep it flowing.

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11 hours ago, pastrygirl said:

This is the gravity feed grex, with the cup on top. https://spraygunner.com/grex-tritium-tg7/

 

I initially bought mine with the 0.3mm fittings, that was slow going, eventually upgraded to 0.5 and finally the 0.7.  It's not hard to change out the needle and nozzle, if cake colors are more fluid than cocoa butter you might want to start in the middle.  Do you know what size your other airbrushes are?  https://spraygunner.com/grex-0-5mm-nozzle-kit-tk-5/

 

As for keeping the cocoa butter from clogging up, that's always a challenge.  I keep my gun warm in my ez temper or an extra melter and warm it with a hairdryer as needed to keep it flowing.

 

Thanks, I went back and found it. I had noticed the difference before, but had looked at so many, they all blurred together. 

 

I think I will get other sized nozzles so I can experiment. I have no clue what my other airbrushes are, I'll see if I can find out. It's a basic gun, but nothing in the info on it said anything about size. There compressor is a teeny little square thing. It's fine for liquid airbrush colors on cakes and cookies. 

 

I've been looking into a dehydrator anyway for quick drying of gum paste flowers, so I'll check out the one Jim mentioned. It looks similar to one I was thinking about, but his looks bigger and has a better temperature range. 

I hope to get a small melter at some point as well, so that's another one the list. The EZtemper would be great, but with the price, I don't think I'll be doing enough to justify the cost. 

Thanks for the recommendations!

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4 hours ago, hvea said:

any airbrush suggestions for less than 100$? I normally spray but need an airbrush for fine details. probably looking for 0.5mm nozzle

It's hard to do fine detail with any airbrush and coloured cocoa butter - but staying below $100 I'd probably get a Badger.

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On 11/2/2020 at 11:29 PM, pastrygirl said:

This is the gravity feed grex, with the cup on top. https://spraygunner.com/grex-tritium-tg7/


I keep thinking I want one of those but that's a lot of money when I already have two Paasches sitting here so I'm still trying to convince myself it's worth it. I found the Paasches on sale for a really good price and jumped on them before I was aware of the benefits of gravity feed, which they are not. 

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It's kinda like wrestling a gorilla... you don't stop when you're tired, you stop when the gorilla is tired.

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  • 1 month later...

I got a cheap airbrush at the end, as I mainly use a spray gun

 

I am working on spraying using a russian pipe.

here is an example

 

the problem is the dye appears to be too liquid on the mold and the correct shape doesnt form and it looks like a puddle on the mold

 

I am using the cocoa butter at 32 C and the room temp is 16-17 C (I use these using spray gun and never had a problem)

 

any ideas?

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How do you temper the cocoa butter? 32° seems fairly warm. But with a room at 16-17°, having issues with too liquid butter when it's sprayed in the mould - the cocoa butter can't be tempered correctly.

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